U.S. GEOLOGICAL SURVEY
OPENFILE REPORT 84-454
Prepared in cooperation with
Oregon Water Resources Department
STATISTICAL SUMMARIES OF STREAMFLOW DATA IN OREGON
VOLUME 1. EASTERN OREGON
By John Friday and Suzanne J. Miller
U.S. GEOLOGICAL SURVEY
OPEN-FILE REPORT 84-454
Prepared in Cooperation with
Oregon Water Resources Department
Portland, Oregon
1984
uNITED STATES DEPARTMENT OF THE INTERIOR
WILLIAM P. CLARK, Secretary
GEOLOGICAL SURVEY
Dallas L. Peck, Director
Cover photo: Thielsen Creek near Diamond Lake
For additional informal-jon
write to:
Copies of this report can
be purchased from:
District Chief
U.S. Geological Survey
847 N.E. 19th Ave., Suite 300
Portland, Oregon 97232
Open-File Services Section
Western Distribution Branch
Box 25425, Federal Center
Denver, Colorado 80225
(Telephone:
(303) 776-7476)
CONTENTS
Page
Abstract
1
ri trod uct ion
Streamf low records
2
Statistical summaries
2
2
Monthly and annual mean discharges
Magnitude and probability of annual low flows
Magnitude and probability of annual high flows
Magnitude and probability of instantaneous peak flows
Duration table of daily mean flows
References
3
3
3
4
5
List of gaging stations, in downstream order
Gaging-station descriptions and statistical tables
7
11
Index
147
ILLUSTRATIONS
[Plate is in pocketi
Plate 1.
Mapshowing location of streamflow gaging stations in eastern
Oregon.
METRIC CONVERSION TABLE
To convert inch-pound units F:in this report to metric units, multiply
by the following factors:
To obtain metric unit
Multiply inch-pound unit
acre-foot per year (acre-ft/yr)
0.4047
hectorneter (hm)
0.00 1233
cubic hectometers per year
cubic foot per second (ft3/s
0.02832
cubic meter per second
acre
(hrn3/yr)
and CFS)
foot (ft)
inch per year (in/yr)
mile (mi)
square mile (mi2)
0.3048
25.40
1.609
2.590
(m3/s)
meter (rn)
millimeter per year (mm/yr)
kilometer (kin)
square kilometer (kin2)
STATISTICAL SUMMARIES OF STREAMFLOW DATA IN OREGON
VOLUME 1.
EASTERN OREGON
By John Friday and Suzanne J. Miller
ABSTRACT
Statistical summaries of streamfiow data at 123 stream-gaging sites
are presented in this report to aid in appraising the hydrology of river
basins in Eastern Oregon. Records for 13 gaging stations were compiled
into separate periods owing to changes in regulation during the period
of data col lec-I-ion.
The periods before and after regulation are
presented for comparison.
A brief station description is given describing the physical and
Fol lowing the station
features for each gaging station.
description are tables of monthly and annual flow statistics, flood
frequency data, low-flow and high-flow frequency data, and flow-duration
operational
information.
INTRODUCTION
summaries of
the first of two volumes of statistical
This
is
Oregon.
Volume
in
streamf low data collected at gaging stations
1
contains data from 123 gaging stations located in the area east of the
Volume 2 will cover the remainder of the
divide of the Cascade Range.
It is anticipated these reports will be updated about every five
State.
years.
This report was prepared in cooperation with the Oregon Water
The purpose is to provide water-resource
Resouces Department (OWRD).
managers with a
knowledge of streamflow characteristics based on
historical data. For the purpose of this report, gaging-station records
The data had to be hydrologically
had to satisfy one of two criteria.
transferable (for use in estimating streamflow in ungaged basins), or it
For example, a
had to be a significant indicator of flow availability.
I ittle hydrologic
lake would have
gage at the outlet of a natural
transferability (due to storage of water in the lake) , but the data
would be a good indication of low-flow availability as well as flood
events.
Stations on canals, reservoirs, or combined-flow stations, were not
Data for combined-flow stations include diverted
in this report.
flow which may or may not reenter the stream downstream from the gage.
A map showing the location of gaging stations used in this report is
enclosed in a packet in the back of the book.
used
STREAMFLOW RECORDS
Both active and discontinued gaging stations having a minimum of 10
years of daily-mean discharge values were used in this report.
For
active stations, the period of record extends -I-s the end of the 1982
water year (ending on September 30).
A brief
station description
showing the physical and operational features of the gaging station
precedes the statistical
summaries for each station.
Except for
paragraphs describing revised records and extremes for a specific year,
the station descriptions are identical to the last-published version in
the annual release "Water Resources Data - Oregon" (U.S. Geological
Survey, 1983).
A detailed explanation of the manuscript data and a
definition of terms is given in that report.
Sometimes
the natural flow of a stream may be altered by the
construction of a dam, an irrigation diversion, or by the augmentation
of flow by transbasin diversions,
If this occurs during the operation
of a gaging station, the statistical summaries must reflect both natural
and altered states of flow, providing there are at least 10 years of
data for each state.
There are 13 such stations in this report.
STATISTICAL SUMMARIES
The tables of
statistical data include monthly and annual mean
discharges, magnitude and probability of annual low flows, magnitude and
probability of annual high flows, magnitude and probability of
instantaneous peak flows, and a dura+ion table of daily mean flows. The
statistics were generated by using computer programs available from the
U.S. Geological Survey's "National Water Data Storage and Retrieval
System" (WATSTORE).
Monthly and Annual Mean Discharges
This statistical summary is from computer program W4422 by Price
and Meeks (1977).
The period of record shown in the heading is the
first and last water year for which daily-mean discharge values are
available, and does not necessarily indicate a continuous period of
record (see the PERIOD OF RECORD paragraph in the station description
for fragmentary records)
The standard deviation shown in the table is a measure of the
variability of flows occurring during a given month during the period of
record.
The value represents the spread in discharges (from the mean
value) that could be expected to occur two-thirds of the time based on
the distribution of data during the sampl ing period.
The coefficient of
variation is the ratio of the standard deviation to the mean.
The annual mean shown in the table will sometimes vary from the
average discharge shown in the manuscript because the annual mean is
based only on years for which daily-mean discharge values are available,
while the average discharge includes years having estimated monthly
va I ues.
Magnitude and Probability of Annual Low Flows
The
This summary is from computer program A969 by Meeks (1977).
computation period is based on a climatic year which ends on March 31
thus assuring the low-flow season will be complete within a twelve-month
period.
The recurrence interval was generally extended to twice the
If
period of record for stations having less than 40 years of record,
40 or more years of record were available, the recurrence interval was
extended to 100 years (a flow having a 1 percent chance of not being
exceeded in any given year).
The table shows the amount of flow that probably would not be
exceeded, during specified periods, for the indicated recurrence
intervals.
The recurrence intervals are also shown as nonexceedance
probabilities which are expressed as a percent chance of the event not
For example, the low flow during a
being exceeded in any given year.
30-day period might not be exceeded on the average of once every 50
years, and would have a 2 percent chance of not being exceeded in any
given year.
Magnitude and Probability of Annual High Flows
This summary is also from computer program A969 (Meeks, 1977). The
period of record is based on water years having daily-mean discharge
The recurrence intervals are extended in the same manner as the
data.
low-flow frequency.
The table shows maximum flows that could be
indicated
equal led or exceeded,
during specified periods, for the
recurrence intervals. Occasionally, the values shown for a 1-day period
wi I
exceed the instantaneous peaks shown for the same recurrence
The reason for this is that different
intervals in the adjacent table.
Quite often peak data are documented
periods of record are involved.
outside the period of systematic data collection.
I
Magnitude and Probability of Instantaneous Peak Flow
The
This summary is from computer program J4O7 by Kirby (1981).
period of record shows the first and last water years for which annual
peak flows were documented.
The table shows the magnitude of
instantaneous peak flows for selected recurrence intervals as computed
from a log-Pearson Type Ill probability distribution of gaging-station
data.
For stations having less than 25 years of record, the frequency
curve was based on a generalized skew coefficient taken from the U.S.
For stations having more
Water Resources Council Bulletin 17B (1981).
than 25 years of data, the skew coefficient was determined by weighing
the generalized skew against the actual station skew as recommended by
the Council.
The skew used for a particular station is shown at the
bottom of the table.
Flood-frequency data were not determined at gaging stations
At stations where
immediately downstream from dams and reservoirs.
low-flow statistics are divided into two periods due to the construction
of a bypass structure, the flood-frequency data are computed for the
entire period of record.
Duration Table of Daily Mean Flow
This summary is from computer program A969 by Meeks (1977).
The
period of record indica-t-es the first and last water year where
dailymean values of discharge were available for analysis.
The table
shows the amount of flow that was equal led or exceeded for the indicated
percent of the time.
4
REFERENCES
Kirby, William, 1981, Annual flood frequency analysis using U.S. Water
Resources Council guidelines (Program J407), chapter I, section C
U.S. Geological Survey Open-File Report
of WATSTORE user's guide:
76-435, v. 4, p. c-i to c-57.
Meeks, W. C., 1977, Daily values statistics (Program A969), chapter IV,
Survey
Geological
U.S.
section G, of WATSIORE user's guide:
Open-File Report 75-426, v. 1, p. G1 to G-37.
Price, W. E., Jr., and Meeks W. C., 1977, Daily values monthly and
of
F,
section
IV,
annual
statistics (Program W4422), chapter
WATSTORE user's guide:
U.S. Geological Survey Open-File Report
75-426, v. 1, p. F-i to F-46.
U.S. Geological Survey, 1983, Water resources data, Oregon, water year
1982, volume 1. Eastern Oregon; Portland, Oregon, U.S. Geological
Survey Water-Data Report OR-82-1, 206 p.
U.S. Water Resources Council,
flow frequency rrevised]:
1981,
Guidelines for determining flood
Hydrology Committee Bul letin 17B, 28 p.
7
DOWNSTREAM ORDER OF GAGING STATIONS
IN EASTERN OREGON
PAGE
The Great Basin
Warner Lakes Basin
Twentymile Creek (head of Warner Lakes Basin)
Twentymile Creek near Adel
Camas Creek near Lakeview
Drake Creek near Adel
Deep Creek above Adel
Hart Lake
Honey Creek near Plush
Abert Lake Basin
Chewaucan River near Paisley
Malheur and Harney Lakes Basin
Si Ivies River near Burns
Donner und Blitzen River near Frenchglen
Bridge Creek near Frenchglen
Silver Creek near Riley
Alvord Lake Basin
Trout Creek near Denio, MV
Goose Lake Basin (closed basin)
Drews Creek near Lakeview
Cottonwood Creek near Lakeview
Pacific Slope Basins in Oregon-California
Kiarnath River Basin
Williamson River near Kiamath Agency
Sprague River near Beatty
Sprague River near Chiloquin
Williamson River below Sprague River, near Chiloquin
Upper Klamath Lake (continuation of Williamson River)
Wood River:
Wood River at Fort Klamath
Kiamath River at Keno
Klamath River below John C. Boyle powerplant, near Keno ..
Jenny Creek:
Keene Creek near Ashland
Upper Columbia River Basin
Snake River Basin
Owyhee River Basin
Owyhee River near Rome
Owyhee River above Lake Owyhee
Owyhee River below Owyhee Dam
Owyhee River at Owyhee
Malheur River Basin
Malheur River near Drewsey
Malheur River below Warmsprings Reservoir, near
Riverside
11
12
13
14
15
16
17
18
19
20
21
22
23
25
26
27
28
29
30
31
32
34
35
36
37
38
DOWNSTREAM ORDER OF GAGING STATIONS IN EASTERN OREGON--CONTINUED
PAGE
Upper Columbia River Basin--Continued
Snake River Basin--Continued
Maiheur River Basin--Continued
North Fork Malheur River above Beulah Reservoir,
near Beulah
North Fork Malheur- River at Beulah
Maiheur River at Little Valley, near Hope
Maiheur River near Hope
Bully Creek at Warmsprings, near Vale
Bully Creek near Vale
Malheur River at Vale
Burnt River Basin
North Fork Burnt River near Whitney
South Fork Burnt River above Barney Creek, near Unity
Burnt River near Hereford
Burnt River near Bridgeport
Burnt River at Huntington
Powder River Basin
Powder River near Sumpter
Powder River near Baker
Powder River near Richland
Eagle Creek above Skull Creek, near New Bridge
Powder River near Robinette
Imnaha River Basin
lmnaha River at lmnaha
Grande Ronde River Basin
Grande Ronde River near Hilgard
Grande Ronde River at Hilgard
Grande Ronde River at La Grande
Catherine Creek near Union
Grande Ronde River near Elgin
Indian Creek near lmbler
Wallowa River
Wallowa River at Joseph
Hurricane Creek near Joseph
Lostine River near Lostine
Bear Creek near Wallowa
Minam River at Minam
Grande Ronde River at Rondowa
Grande River at Troy
39
40
41
42
43
44
45
46
47
48
50
51
52
53
56
57
58
59
60
61
62
64
65
66
67
68
69
70
71
72
DOWNSTREAM ORDER OF GAGING STATIONS IN EASTERN OREGON--CONTINUED
PAGE
Lower Columbia River Basin
Columbia River
WallaWalla River Basin
South Fork Wal Ia Wal Ia River near Milton
South Fork Wal Ia Wal Ia River below Pacific Power and Light
73
Company plant near Milton
North Fork Wal Ia Wal Ia River near Mi Iton-Freewater
North Fork Wal Ia Wal Ia River near Milton
Umatilla River Basin
Umatj I Ia River above Meacham Creek, near Gibbon
Umatilla River at Pendleton
Umatilla River above McKay Creek near Pendleton
Mckay Creek
74
Mckay Creek near Pilot Rock
Birch Creek at Rieth
Umatilla River at Yoakum
Butter Creek near Pine City
Umatilla River near Umatilla
Willow Creek Basin
Willow Creek at Heppner
Rhea Creek near Heppner
Willow Creek near Arlington
John Day River Basin
John Day River
Strawberry Creek above Slide Creek, near Prairie City
John Day River at Prairie City
John Day River near John Day
John Day River at Picture Gorge, near Dayville
North Fork John Day River
North Fork John Day River near Dale
Camas Creek near Lehman
Camas Creek near Ukiah
Middle Fork John Day River at Ritter
Fox Creek at gorge, near Fox
North Fork John Day River at Monument
John Day River at Service Creek
John Day River at McDonald Ferry
Deschutes River Basin
Deschutes River below Snow Creek, near La Pine
Cull-us River above Cull-us Creek, near La Pine
Cultus Creek above Crane Prairie Reservoir, near
La Pine
Deer Creek above Crane Prairie Reservoir, near La Pine
Quinn River near La Pine
Deschutes River below Crane Prairie Reservoir, near
La Pine
Brown Creek near La Pine
Odell Creek near Crescent
Deschu-t-es River below Wickiup Reservoir, near La Pine
75
76
77
78
79
80
81
82
84
85
86
87
88
89
90
92
93
94
95
96
97
98
99
100
101
102
103
104
106
107
108
109
110
111
10
DOWNSTREAM ORDER OF GAGING STATIONS IN EASTERN OREGON--CONTINUED
PAGE
Lower Columbia River Basin--Continued
Deschutes River Basin--Continued
Deschutes River at Pringle Falls, near La Pine
Fall River near La Pine
Little Deschutes River
Crescent Creek at Crescent Lake, near Crescent
Big Marsh Creek at Hoey Ranch, near Crescent
Little Deschutes River near La Pine
Deschutes River at Benham Falls, near Bend
Deschutes River below Lava Island, near Bend
Deschutes River below Bend
Squaw Creek near Sisters
Deschutes River near Culver
Beaver Creek near Paulina
Crooked River
North Fork Crooked River above Deep Creek
Crooked River near Post
Crooked River near Prinevi I le
Crooked River below Opal Springs, near Culver
Crooked River near Culver
Metollus River
Lake Creek near Sisters
Metolius River near Grandview
Deschutes River near Madras
Shi-t-ike Creek at Warm Springs
Deschutes River at Mecca
Warm Springs River near Kahneeta Hot Springs
White River near Government Camp
White River below Tygh Valley
Deschutes River at Moody, near Biggs
Mosier Creek Basin
Mosier Creek near Mosier
Hood River Basin
Dog River near Parkdale
West Fork Hood River near Dee
Hood River a-I- Tucker Bridge, near Hood River
112
114
115
116
117
118
120
122
123
124
125
126
127
128
130
131
132
133
134
136
137
138
139
140
141
143
144
145
146
11
THE GREAT 3ASIN
WARNER LAKES BASIN
TWENTYMILE CREEK NEAR ADEL, OR
10366000
LOCATIOI4.--Lat 42O4'2O", long 119'57'42', in SWNW, sec.25, T.40 S., R.23 E., Lake County. Hydrologic Unit 17120007, on left bank
1.5 ml downstream from Twelvemile Creek and 9 ml southwest of Add.
DRAINAGE AREA.--194 m12, including 46 mi2 in Cowhead Lake area.
PERIOD OF RECORD.-- March 1910 to July 1916, December 1917 to September 1919, and larch 1921 to June 1922 Ipublished as 'near Warner
Lake"), September 1940 to November 1944. March 1045 to September 1992.
Prior to
GAGE.--Water-stage recorder and concrete control.
Datum of gage is 4,560.83 ft National Geodetic Vertical Datum of 1929.
Sept. 21, 1940, to
ml downstream at various datums.
Sept. 21, 1940. nonrecording gage or water-stage recorder at sites within
Mar. 12, 1945, to June 28, 1952, water-stage
Nov. 30, 1944, water-stage recorder at site 1.8 ml upstream at different datums.
recorder at site 70 ft upstream at datum 0.88 ft higher.
1
REMARKS.--Some regulation by pumpage from Cowhead Lake.
for Irrigation in Cowhead Lake area in California.
Diversions in Oregon for irrigation above station; considerable diversions
AVERAGE DISCHARGE.--47 years (water years 1911-15, 1919. 1941-44, 1946-821. 51.9 ft3/s, 37.600 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3,670 ft3/s Dec. 23. 1964, gage height, 16.1 ft, from rating curve extended above
920 ft3/s on basis of contracted-opening measurement of 3,260 fta!s; no flow at times.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIATION
(CFS)
(CFS)
(CFS)
(CFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1912-82
1911-82
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
PERIOD
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
2.4
3.8
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
2.8
3.3
5.9
5.9
9.4
4.2
ANNUAL
4.2
3.1
1.5
6.8
9.0
121
2.42
17
10
32
62
1.14
1.93
383
52
73
82
92
1.58
1.26
578
879
134
133
117
144
.87
283
97
53
261
34
56
44
7.4
65
349
330
9.6
3.4
8.4
6.3
1.2
2.1
125
30
52
.29
.6
.58
2
5
50%
0%
10
10%
25
4%
50
2%
3.3
3.8
5.0
2310
1340
WEIGHTED SKEW
=
2q70
300
4390
.7
.9
1.1
2.4
3.3
2.2
3.2
1.0
1.4
1.6
1.9
1.8
2.1
3.1
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1911-82
PERIOD
ICONSECUTIVE
100
1%
DAYS)
716
2.0
2.3
2.6
3.5
.9
1.1
1.4
1.8
2.1
.3
.4
.6
.8
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL. IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
2.0
2.3
2.6
3.0
3.8
.4
.6
.8
1.4
1.6
1%
.6
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 191 1-82
80%
1.7
2.5
2.8
3.0
.6
.8
1.0
1.2
1.3
1.5
2.3
30
60
90
20
83
10%
00
50
2%
20
5%
10
1.2
2.1
2.2
14
9.3
1.6
5
20%
1
8.5
12.0
22.0
21.8
15.9
.77
.43
2
50%
3
7
5.3
1.08
.54
.78
1.5
1.0
3.5
1.1
1.5
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
25
4%
50
2%
100
2510
1970
2770
2980
2190
2380
1420
1600
1050
1750
1150
743
465
10
2
5
50%
20%
10%
2080
1590
1130
762
516
343
269
1%
4960
-.508
1
913
1650
3
649
7
455
318
228
1240
873
594
15
30
60
90
411
165
281
141
227
943
626
404
307
690
438
328
343
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1911-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
205
10%
125
15%
20%
25%
30%
40%
89
67
48
33
15
50%
7.8
60%
6.0
70%
4.7
75%
4.3
80%
3.9
85%
5.4
90%
3.0
95%
2.4
12
WARNER LAKES BASIN
10370000
CAMAS CREEK NEAR LAKEVIEW, OR
LOCATION.--Lat 4212'59", long 12O0061O5T, In SE*NE sec.3, 1.39 S., R.22 E., Lake County, Hydroio9ic Unit 17120007, on left bank 0.2
ml downstream from Blue Creek and 12 ml east of Lakeview.
DRAINAGE AREA.--63 m12, approximately.
PERIOD OF RECORD.--September 1912 to November 1914, March to May 1915, December 1949 to September 1973.
GAGE.--Water-stage recorder.
Datum of gage is 5,472.41 ft National GeodetIc VertIcal Datum of 1929 (State Highway Department bench
mark).
Sept. 11, 1912, to May 9, 1915, water-stage recorder or nonrecordlng gage at site 500 ft upstream at different datum.
REMARKS.--No regulatIon.
Diversions for IrrIgatIon above station.
AVERAGE DISCHARGE.--25 years (water years 1913-14, 1951-73), 46.6 ft3/s, 33,760 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum dIscharge, 3,190 ft3/s Dec. 23, 1964, gage height. 7.32 ft, from rating curve extended above
410 ft3/s on basis of slope-area measurement of peak flow; mInimum, 0.90 ft3/s Aug. 16, 1960.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIATION
(CFS)
(CFS)
(CFS)
(CFS)
2.9
3.3
2.3
2.7
6.3
15
40
AUGUST
SEPTEMBER
ANNUAL
8.6
339
114
23
1.9
10
2.0
30
41
64
164
144
42
10
5.2
4.8
9.1
89
17
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
9.5
8.9
53
37
35
52
77
87
28
5.8
2.3
14
33
254
344
7.3
2.0
19
JULY
52
42
241
125
142
1.11
.65
1.62
1.22
.85
(CONSECUTIVE
DAYS)
14
30
60
90
7.3
.61
.68
.57
.45
.40
293
2
5
20%
472
WEIGHTED SKEW =
821
10
10%
1130
25
4%
16O
2.1
2.2
2.2
2.4
2.6
2.9
3.2
3.7
5.3
100
50
2%
1%
1.6
1.6
1.7
1.8
1.2
.9
1.3
1.3
1.4
1.0
2.0
2.3
2.5
2.9
4.0
1.6
1.8
2.1
2.3
3.2
.9
1.1
1.2
1.4
1.6
1.8
2.4
.9
.9
100
.44
50
2%
10%
1.8
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1913-73
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
5
20%
4.9
5.6
8.4
20
5%
10
2
50%
4.0
4.4
120
183
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1913-13
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
3.4
3.5
3.6
3.8
1
3
7
11.4
29.3
25.7
7.5
.47
21
PERIOD
1.5
2.4
5.9
5.4
.81
1.9
47
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLDW
BASED ON PERIOD OF RECORD 1914-73
1913-73
PERIOD
(CONSECUTIVE
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
DAYS)
2
50%
20%
10%
1
373
633
3
336
541
7
292
243
204
440
348
290
224
868
706
544
416
5
25
4%
50
2%
1250
951
1610
1160
683
497
398
309
245
791
10
100
1%
2100
.525
15
30
60
90
157
127
180
341
264
211
556
436
339
267
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1913-73
DISCHARGE,
5%
215
10%
140
15%
95
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
20%
25%
30%
40%
50%
67
50
38
20
13
60%
8.8
70%
6.9
75%
6.3
80%
5.6
85%
4.7
90%
3.8
95%
2.6
13
WARNER LAKES BASIN
10371000
DRAKE CREEK NEAR ADEL, OR
sec.9, 1.39 5., R.23 E., Lake County, Hydrologic Unit 17120007, on right bank
800 ft downstream from highway bridge and Parsnip Creek, 1.0 ml upstream from mouth, and 6.5 mi west of Adel.
LOCATION.--Lat 42°12OO", long 12000041, in NESW
DRAINAGE AREA.--67 rn)2, approximately.
PERIOD OF RECORD.--Ilarch to May 1915, December 1922 to May 1923, December 1949 to December 1964, October 1965 to September 1973.
GAGE.--Hater-stage recorder. Datum of gage is 5,075.94 ft National Geodetic Vertical Datum of 1929 (State High Department benc'
mark). Mar. 18 to May 10. 1915, and Dec. 21, 1922, to May 9, 1923, nonrecording gage at site 800 ft upstream at different daturns.
Dec. 16, 1949, to June 21, 1951, at site 1,300 ft upstream at different datum. June 22, 1951, to Dec. 23. 1964, at site 20 ft
upstream at datum 0.48 ft higher.
REMARKS.--Some regulation by two reservoirs above station with combined capacity of 436 acre-ft. Diversions for irrigation above
station.
AVERAGE DISCHARGE.--22 years (1951-64, 1966-73), 14.9 ft3/s. 10,800 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maxirnum discharge, 6,210 ft3/s Dec. 23, 1964, gage height, 9.8 ft, result of slope-area measurement;
minimum, 0.40 ft/s Jan. 11, 1963, result of freezeup.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
ICFS)
(CFS)
MEAN
(CFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
1952-73
BASED ON PERIOD OF RECORD
1951-73
STANDARD
DEVIAlION
(CFS)
PERIOD
(CONSECUlIVE
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
3.1
12
3.0
2.9
2.4
4.1
11
3.5
3.6
ANNUAL
4.7
32
6.0
4.3
3.5
3.4
3.5
6.5
6.5
9.2
8.7
4.2
14
7.0
2.5
12
6.5
6.3
2.1
2.1
.32
.29
.99
1.25
1.09
.90
1.22
.74
.48
.36
.33
.33
7.7
.52
48
88
2.1
1.9
9.0
21
17
91
121
178
48
22
27
34
36
29
15
11
12
31
44
15
1.7
7
14
4.2
4.5
30
60
90
3.0
3.3
3.6
4.0
4.2
4.4
4.6
2.5
2.8
4.9
5.4
5.7
5.9
6.1
5.1
120
183
5
50%
20%
10
10%
25
4%
50
2%
551
1380
2250
PERIOD
(CONSECU-
100
1%
lIVE
1%
1.3
2.0
2.1
2.4
2.3
2.6
2.9
3.0
3.4
3.6
3.7
4.0
3.1
3.2
3.5
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
25
4%
10
2
50%
20%
10%
238
609
411
15
170
117
78
953
619
403
264
30
60
90
52
36
30
5
50
100
2%
1%
90%
95%
3860
1
WEIGHTED SKEW =
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1951-73
DAYS)
229
50
2%
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
10%
2.3
2.8
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1951-73
1.25
80%
5
20%
3.8
4.0
1
20
5%
10
2
50%
3
3.6
3.6
9.3
14.8
19.2
20.2
8.3
4.8
3.9
3.6
3.5
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.141
3
7
272
178
112
70
55
1490
162
924
593
390
237
96
74
132
100
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1951-73
DISCHARGE, IN CFS. WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
45
10%
15%
20%
25%
21
14
12
10
30%
8.8
40%
7.9
50%
7.0
60%
6.4
70%
5.7
75%
5.3
80%
4.9
85%
4.5
4.0
3.4
14
WARNER LAKES BASIN
DEEP CREEK ABOVE ADEL, OR
10371500
LOCATION.-- Lat 4211'21", long 12OOO'O2, in SWNW
sec.15, T.39 S., R.23 E., Lake County, Hydrologic Unit 17120007, on left bank
700 ft downstream from Drake Creek and 5 ml west of Adel.
DRAINAGE AREA.--249 mi2.
PERIOD OF RECORD.--September 1922 to September 1923, October 1929 to September 1982.
September 1932, published in WSP 1314.
Monthly discharge only October 1929 to
GAGE.--Water-stage recorder. Datum of gage is 4,980.34 ft National Geodetic Vertical Datum of 1929 (State Highway Department bench
mark).
Sept. 8 to Dec. 20, 1922, nonrecording gage.
Dec. 21, 1922, to Sept. 30, 1923, and Oct. 11, 1929, to Dec. 23, 1964,
water-stage recorder at site 700 ft downstream at different datums.
Jan. 20 to Sept. 30, 1965, nonrecording gage at site 2,000 ft
downstream at different datum.
REMARKS.--No regulation.
Diversions for irrigation above station.
AVERAGE DISCHARGE.--54 years, 130 ff3/s, 94,180 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maxirnum discharge. 9,420 ft3/s Dec. 23, 1964, gage height, 10.64 f-f, from floodmark, from rating
curve extended above 1.100 ft/s on basis of slope-area measurements at 7.3 ft ad of peak flow; minimum, 1.7 ft3/s July 20,
27-29, 1934.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD
1934-82
1923-82
STAN-
DARO
MONTH
OCTOBER
NOVENDER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
(CFS)
(CFS)
5.2
10
8.5
7.0
8.0
19
46
32
12
2.4
2.1
2.9
27
MEAN
(CFS)
COEFFI-
179
24
24
197
40
82
86
36
.91
121
1.48
1.27
1.13
605
451
713
825
1072
920
590
288
134
222
218
14
6.1
12
7.0
24.7
26.6
13
8.1
16
10
.65
.81
12.6
183
24
15
.8
.9
6.5
.51
15
7.0
.47
2
5
tO
50%
20%
10%
25
4%
.49
50
2%
1220
WEIGHTED SKEW =
2480
3620
5440
7080
3.0
3.0
4.1
3.1
4.2
4.6
5.2
6.2
7.7
3.3
3.5
4.1
4.8
6.0
9.3
12
100
1%
2.2
2.2
2.3
2.4
2.6
3.0
3.6
4.4
7.2
1.8
1.8
1.8
1.9
2.1
2.4
2.9
3.6
6.1
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1923-82
PERIOD
(CONSECUTIVE
100
1%
DAYS)
605
3.9
4.0
50
2%
2.1
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
10%
5.3
5.4
5.5
5.7
9.0
9.2
9.4
9.6
1
7
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1923-82
80%
5
20%
3
20
5%
10
2
50%
10
13
66
OISCHARGE, IN CFS, FOR INOICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
30
60
90
120
.51
132
27
(CONSECUlIVE
DAYS)
1.5
2.4
5.1
5.3
7.1
11.0
.79
.56
141
398
429
203
34
1.00
109
130
115
178
115
28
32
PERIOD
PERCENT
DEVIA- dENT OF
OF
lION
VARIANNUAL
(CFSI
AflON
RUNOFF
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
25
4%
50
2%
100
3930
2650
1780
1300
1070
826
692
4960
3150
2010
1420
1160
880
6110
3660
2230
1520
1230
922
777
10
2
5
50%
20%
10%
1960
1530
1170
2750
2000
1450
1110
918
1%
9000
.074
1
1020
3
875
7
731
15
616
524
438
366
30
60
90
928
778
633
528
731
611
739
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1923-82
DISCHARGE,
5%
579
10%
403
15%
290
20%
214
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
156
30%
lii
40%
50%
60%
70%
75%
80%
85%
90%
57
35
26
21
18
16
13
H
95%
7.0
,JAALER LAKES BAS I
17338500 HONEY CREEK NEAR PLUSH, OR
LOCATION.--Lat 42n2533, long 1195523", in SI SWU sec.2O, TOo C., R.24 E., Lake County, Hydrologic Unit 17120337, on right bank
ml downstream from Twelvemi le Creek.
700 ft upstream frmn mouth of canyon, 1.4 ni northwest of Plush, and
DRAINAGE AREA.--170m12, approximately.
larch to lay 1915, larch to September 1921,
PERIOD OF RECORD.--May 1909 to September 1914 (prior to January 1910, gage heights only),
Ionthlv discharge only 'iCy 1930 to September 1949, published in WSP 1314.
March to June 1922, Ilay 1930 to September 1982.
Dec. 24, 1954, to Sept. 33,
'htinl Onodefi: Vnmtical Octan of 1929.
iae is
GAGE.--Water-stage recorder. flatui of
See ISP 1927 for history of changes prior to Dec. 24,
1965, nonrecording gage at site 130 ft downstream at different datums.
1964.
Diversions for irrigation above station.
REMARKS.--SIight regulation by five small reserviors, combined capacity, 970 acre-ft.
AVERAGE DISCHARGE.--56 years (water years 1911-14, 1931-92), 30.0 ft3/s, 21,740 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maxiumum discharge, 11,000 ft3/s Dcc. 23, 1964, gage height, 13.4 f,t from floodmark, from rating
curve extended above 250 ft3/s on basis of slope-area measurements at gage height 10.46 ft and of peak flow; no flow at times.
STATISTICAL SLJI.1IIARIES
MONTHLY AND ANNUAL lEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
)CFSI
(CFS)
STANDARD
DEVIATION
MEAN
ICFSI
)CFS)
MAGNITUDE ANID PROBABILITY OF ANNUAL Loll FLOW
BASED ON PERIOD OF RECORD 1951-82
1950-92
PERIOD
(CONSECU-
COEFFI- PERCENT
CIENT OF
OF
ANNUAL
VARIATION
RUNOFF
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS. AND ANNUAL NON-
EXCEEDANCE PROBABILITY. IN PERCENT
TIVE
2
5
DAYS)
50(
20
10
20
50
lOS
5
2'S
00
iS
-
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
.1
39
.9
32
1.0
253
1.1
107
4.0
4.6
181
10
11
JUNE
JULY
147
.3
24
AUGUST
SEPTEMBER
.2
8.8
6.9
.56
.69
.79
1.7
1.3
1.9
1.3
1.11
.35
20
34
.9
1.7
.3
.2
.1
3
.4
.2
.1
5.4
7
.4
5.4
14
.5
.2
.2
7.2
30
60
.6
.8
90
1.1
1 20
1.8
183
3.8
12.0
23.1
.60
68
35
50
79
3.9
1.76
.98
2.05
1.29
1.27
1.05
29.4
.4
12.1
2.1
100
.57
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
171
2
5
50%
20%
450
WEIGHTED SKEW =
1190
10
25
105
41
1980
3420
50
29
4860
.1
.3
.4
2
.1
3
.2
.5
.9
4
6
2.1
4
.3
.4
1.1
.3
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOU
1950-82
BASED ON PERIOD OF RECORD
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1911-92
1.25
80%
.1
2
4
ANNUAL
122
9.5
7.7
.2
7.1
46
29
38
52
58
30
50
96
268
264
318
3.2
6.2
3.5
7.2
22
22
IN
PERIOD
ICONSECUTIVE
DAYS)
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
25
48
50
100
2%
1%
1650
1010
659
431
2150
2710
1210
1420
858
513
321
762
476
345
254
274
291
208
224
237
10
2
5
509
20S
10%
327
267
728
532
391
290
231
182
150
090
734
5670
3
.027
15
212
172
30
60
90
142
113
94
7
511
359
277
218
180
363
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1911-32
DISCHARGE,
5%
159
10%
103
Ifl CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
15%
209
25%
30%
40%
7)
50
35
26
14
50%
7.5
609
5.1
70%
3.2
75%
2.4
80%
1.8
85%
(.2
90%
.7
95%
.3
16
ABERT LAKE BASIN
10384000
CHEWAUCAN RIVER NEAR PAISLEY, OR
LOCATION.--Lat 42°41'O5", long 12003408, in SWNW sec.26, T.33 S., R.18 E., Lake County, Hydrologic Unit 17120006, on left bank
1.2 ml downstream from Mill Creek and 1.4 mi southwest of Paisley.
DRAINAGE AREA.--275 mi2.
Published as "above Conn ditch, near
Paisley" April to September 1912 and May 1924 to September 1955, as "above Mill Creek. near Paisley" October 1912 to 0ecembr
1913; and as "at Chewoucan Land
Cattle Co.'s gage, near Paisley" January to September 1914.
PERIOD OF RECORD.-ApriI 1912 to September 1921 (fragmentary), May 1924 to September 1982.
Datum of gage is 4,430 ft National Geodetic Vertical Datum of 1929 (river-profile survey).
1734 for history of changes prior lo Oct. 6, 1956.
See WSP
GAGE.--Water-stage recorder.
REMARKS.--No regulation.
Diversions for irrigation above station.
AVERAGE DISCHARGE.--67 years, 144 ft3/s, 104,300 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maxlmum discharge, 6,490 ft3/s Dec. 22, 1964, gage height, 8.35 ft. from rating curve extended above
900 ft3/s on basis of slope-area measurement of peak flow; no flow for part of each day Dec. 7, 1927, Dec. 12, 1932, result of
free zeup.
STATISTICAL SIJ.IMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1926-82
1925-82
STANDARD
DEVIAMONTH
MINIMUM
MAXIMUM
MEAN
(CFS)
(CFS)
(CFS)
OCTOBER
22
156
NOVEMBER
DECEMBER
21
10
JANUARY
FEBRUARY
17
23
MARCH
42
APRIL
JUNE
54
57
25
205
657
395
566
659
828
JULY
14
MAY
14
ANNUAL
34
353
9.4
88
88
ATION
PERIOD
(CONSECU-
RUNOFF
TIVE
2
5
10
20
50
100
50%
20%
10%
5%
2%
1%
13
10
8.5
6.7
14
15
11
9.1
7.1
.47
2.2
1
34
115
86
.62
3.1
5.1
3
7
5.0
6.4
9.2
14
1.30
.98
.87
.64
338
494
252
62
103
189
283
173
38
31
13
.41
.28
.62
8.5
31
146
.51
74
2
5
50%
20%
573
957
1650
25
50
100
10%
4%
2%
1%
2210
3800
30
33
40
18
20
22
25
29
12
13
10
14
12
17
14
19
21
16
18
21
11
25
8.0
8.9
9.6
12
13
15
18
10
12
13
16
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1925-82
PERIOD
(CONSECU-
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
lIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
788
728
663
1400
1240
1070
925
810
664
544
1870
1580
1310
1100
963
799
657
2500
2000
1570
3000
2300
3520
2600
1890
1490
4620
1
WEIGHTED SKEW =
16
5.6
6.0
6.8
7.6
8.2
100
10
3060
23
25
27
120
183
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
80%
22
60
90
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1925-82
1.25
19
21
30
19.3
28.3
14.4
3.5
1.8
1.7
.56
.57
.69
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
DAYS)
19
98
112
160
672
SEPTEMBER
AUGUST
39
54
1211
168
69
50
TION
(CFS)
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
.222
3
7
15
30
597
528
428
60
90
352
1290
1120
946
782
1740
1400
1210
1040
863
1290
1120
934
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1925-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
608
1O
403
15%
284
20%
209
25%
158
30%
121
40%
50%
60%
70%
75%
80%
85%
90%
95%
77
56
45
37
34
31
28
24
20
17
MALHEUR AND HARNEY LAKES BASIN
10393500
SILVIES RIVER NEAR BURNS, OR
sec.31, 1.21 5., R.30 E., Harney County, Hydrologic Unit 17120002, on left bank
5 ml downstream from Emigrant Creak and 11 mi northwest of Burns.
LOCATION.-- Lat 43°4255", long 1l91O35v, in NWNW
DRAINAGE AREA.--934 mi2.
PERIOD OF RECORD.--May 1903 to July 1906, December 1908 to December 1912, March 1913 to September 1917 (irrigation seasons only),
March 1918 to October 1920, March 1921 to July 1922 (irrigation seasons only>. October 1922 to September 1982.
See WSP
GAGE.--l4ater-staqe recorder. Datum of gage is 4,195 ft NatIonal Geodetic Vertical Datum of 1929 (river-profile survey>.
1734 for history of changes prior to Oct. 4, 1951.
REMARKS.--llo regulation.
Diversions for irrigation above station during periods of high flow only.
AVERAGE DISCHARGE.--69 years (water years 1904-5, 1910-12, 1918-21, 1923-82), 169 ft3/s, 122,400 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 4,960 ft3/s Apr. 6,
1952, gage height, 15.2 ft; no flow July 19 to Sept. 22, 1934.
STATI STICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIATION
ICFS)
(CFS)
(CFS)
(CFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1905-82
1904-82
dENT OF
OF
ANNUAL
RUNOFF
VARIATION
DAYS)
OCTOBER
NOVEMBER
DECEMBER
3.9
5.2
45
62
18
51
60
81
107
156
164
347
757
447
134
275
530
JANUARY
FEBRUARY
10
10
18
482
715
799
MARCH
30
1508
APRIL
12
2716
MAY
JUNE
5.6
2.2
1535
.5
152
52
45
31
26
13
11
412
166
JULY
AUGUST
SEPTEMBER
ANNUAL
9.1
0.0
.6
15
473
351
115
8.6
12
98
36.4
21.5
6.5
7
14
7.1
3.1
1.2
1.3
1.5
1.9
30
60
90
7.5
8.8
3.7
4.6
5.5
7.0
2.4
3.2
3.3
4.6
2
5
508
20%
10
108
25
4%
1280
2130
2750
3580
4230
.9
.4
.3
1.2
1.7
.6
.4
1.1
1.5
1.1
.8
1.2
1.3
1.6
1.9
3.9
2.9
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1904-82
IN
PERIOD
(CONSECUlIVE
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
20%
10%
25
4%
50
2%
100
50%
1240
1170
1050
904
757
2050
1960
1790
1550
1320
581
999
793
2480
2390
2200
1940
1640
1240
987
2890
2810
2600
2330
1980
1510
1200
3120
3050
2840
2560
2190
1570
1330
3300
3240
3030
2750
2350
1800
1440
10
1%
4900
1
WEIGHTED SKEW =
.2
.2
100
DAYS)
749
.3
.4
2.3
2.5
3.0
5.9
8.2
12
.7
.7
.6
.6
.59
50
28
12
14
21
120
183
1%
1.5
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
10%
100
50
2%
20
5%
10
2.3
2.5
2.7
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1904-82
8O
5
20%
6.1
3
2.5
3.9
7.5
16.7
.79
.70
.79
.86
.85
.86
.73
2
50%
1
1.5
1.16
1.33
1.05
INTERVAL,
6.4
6.7
.9
.50
.42
13
31
IN CFS, FOR INDICATED RECURRENCE
IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE,
PERIOD
(CONSECUTIVE
PERCENT
COEFFI-
-.166
3
7
15
30
60
90
465
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1904-82
DISCHARGE,
1O
834
514
15%
326
20%
218
IN CFS, WHICH WAS EQUALED DR EXCEEDED FOR INDICATED PERCENT OF TIME
2591
143
30%
40%
5091
60%
70%
75
80%
85%
98
57
40
28
20
17
13
10
90%
7.4
95%
4.7
MALHEUR AND HARNEY LAKES BASIN
18
DONNER UND BLITZEN RIVER NEAR FRENCHGLEN, OR
10396000
LOCATION.--Lat 42°47'28", long 118'52'0O", in NWNW0 sec.20. T.32 S., R.32-1/2 E., Harney County, Hydrologi c Unit 17120003, Bureau of
Land Management land, on left bank 1.5 ml upstream from upper diversions for Malheur Migratory Waterfowl Refuge, 2.0 ml downstream
from Fish Creek, and 3.5 ruT southeast of Frenchglen.
DRAINAGE AREA.--200 m12, approximately.
August to November 1929,
PERIOD OF RECORD.--March 1911 to September 1913, March 1914 to September 1916, April 1917 to September 1921
Monthly discharge Only for some periods, publ ished in WSP 1314.
April to September 1930, December 1937 to September 1982.
Published as 'near Diamond" 1911-21.
Records of di scharge for January 1909 to September 1910 1 pub Ii shed iii WSP 270, 290, and 370,
for a nonequivalent site as 'near Diamond") have been found to be unreliable and should not be used.
Datum of gage is 4,254 ft National Geodetic Vertical Datum of 1929 (levels by Fish
GAGE.--Water-stage recorder and concrete control.
and Wildlife Service). Prior to December 1937, nonrecording gage at several sites within 2 ml downstream at different datums.
Dec. 6, 1937, to Feb. 14, 1938, nonrecording gage at present site and datum.
REMARXS.--No regulation or diversion above station.
AVERAGE DISCHARGE.--52 years (water years 1912-13, 1915-16, 1918-21, 1939-82), 123 ft3/s, 89,110 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 4,270 ft3/s Apr. 26, 1978, gage height, 7.15 ft from floodmarks, from rating curve
extended above 1,900 ft3/s on basis of slope-area measurement of peak flcw minimum, 4.2 ft'/s Dec. 9, 1972, result of freezeup.
STATIST I CAL SUMMARI ES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS>
MEAN
(CFS)
STANDARD
DEVIATION
(CFSI
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
1913-82
BASED ON PERIOD OF RECORD
1912-82
PERIOD
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
RUNOFF
ATION
ICONSECUlIVE
25
25
25
25
28
41
61
38
64
93
43
47
55
65
181
239
9.1
13
32
44
310
91
67
374
138
221
373
284
95
73
108
132
135
43
46
14
666
649
JUNE
JULY
68
29
AUGUST
SEPTEMBER
24
196
76
24
65
41
ANNUAL
55
201
123
802
9.9
36
80%
809
50%
208
1340
WEIGHTED SKEW =
2120
10
10%
2630
13
16
11
18
10
12
14
18
39
43
14
7
30
36
20
24
26
27
29
30
32
1%
13
18
16
22
24
25
26
22
23
20
24
25
27
22
23
26
27
30
19
21
100
.29
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
1912-82
BASED DN PERIOD OF RECORD
IN
PERIOD
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
S ECU-
25
4%
3280
15
20
23
26
29
30
32
33
120
183
4.3
6.0
9.2
14.8
24.9
19.0
6.3
3.1
2.8
1
(CON5
17
60
90
3
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
2
100
26
30
32
35
36
38
3.1
3.7
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1912-82
1.25
50
2%
23
2.8
.27
.59
.67
.74
.24
20
5%
5
20%
.21
.53
.49
.35
.48
.46
.30
10
10%
2
50%
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
3740
T I VE
2
5
DAYS)
50%
20%
831
1270
960
774
638
550
450
383
10
10%
25
4%
50
2%
100
1560
1140
1950
1340
1010
2240
2530
1480
1080
815
872
765
1620
1150
92)
1%
4200
-.361
669
570
477
410
343
3
7
15
3D
60
90
294
886
724
627
507
430
711
565
477
601
812
632
506
531
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1912-82
DISCHARGE,
58
433
10%
316
15%
244
20%
188
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
258
144
30%
Ill
40%
50%
60%
70%
75%
80%
85%
90%
95%
72
56
49
43
41
38
35
32
28
19
MALHEUR AND HARNEY LAKES BASIN
10397000
BRIDGE CREEK NEAR FRENCHGLEN, OR
LOCATION.--Lat 425O'38", long 1t8°50'57", in SENW sec.33, 1.31 S., R.32-1/2 E., Harney County, Hydrologic Unit 17120003, on right
bank at mouth of canyon, 3.5 mi northeast of Frenchglen.
DRAINAGE AREA.--30 mi2, approximately.
PERIOD OF RECORD.--March to August 1911, January 1912 to September 1916, April to June 1930. December 1937 to September 1970.
Monthly discharge or,iy April to June 1930, published in dSP 1314.
Published as "near Diamond" 1911-16.
GAGE.--Water-stage recorder and concrete control.
Datum of gage is 4,184.93 ft National Geodetic Vertical Datum of 1929 (levels by
Fish and Wildlife Service). Prior to Dec. 21. 1937, nonrecording gage at sites within
ml upstream at different datums. Dec.
21, 1937, to May 17, 1938, nonrecording gage at site 1,000 ft downstream at different datum.
May 18, 1938, to Aug. 22, 1939.
nonrecording gage at present site and datum.
I
REMARXS.--No regulation or diversion above station.
Low-water flow is sustained by large springs.
AVERAGE DISCHARGE.--36 years (water years 1913-16. 1939-70), 13.5 ft3/s, 9,780 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORO.--Maximum discharge, 301 ft3/s May 19, 1953, gage-height, 2.73 ft. from rating curve extended above 65
ft3/s; minimum, 4.2 ft3/s Feb. 25. 1962.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIAlION
(CFS)
(CFS)
(CFS)
ICES)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
6.6
1.2
COEFFI-
12
11
2.1
2.7
.18
.24
11
2.4
.21
17
11
2.7
.23
25
35
37
44
25
12
13
3.7
4.8
7.2
9.9
4.2
.31
5.7
5.3
7.8
8.2
JUNE
JULY
8.5
8.4
7.9
AUGUST
SEPTEMBER
16
16
16
12
12
7.7
12
1.7
1.7
1.9
.36
.38
.45
.29
.14
.15
.16
ANNUAL
8.3
19
14
2.5
.19
8.2
19
22
14
OF
(CONSECU-
ANNUAL
RUNOFF
VARIATION
15
16
PERIOD
PERCENT
dENT OF
15
6.2
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1914-70
1913-70
lIVE
2
5
DAYS)
50%
20%
7.2
7.0
7.0
7.0
80%
43
5
50%
20%
91
1
79
10
10%
247
25
4%
342
5%
50
2%
100
1%
7
14
30
60
90
7.5
8.3
11.7
13.5
8.9
7.3
7.3
7.2
7.5
H
8.2
8.5
8.7
11
.3
8.3
10
10
120
183
7.7
6.5
6.7
6.9
7.5
5.6
5.8
6.0
6.6
SHORT-DURATION DATA UNCERTAIN DUE TO EXCESSIVE
SKEW
NOTE:
7.4
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1913-70
50
100
2%
1%
PERIOD
ICONSECU-
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
TIVE
2
5
DAYS)
50%
20%
10%
25
4%
50
2%
45
77
57
45
38
33
27
24
101
133
159
120
10
100
1%
418
1
WEIGHTED SKEW =
20
10%
1
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
10
3
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1913-70
1.25
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL. IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
-.357
3
7
15
34
29
26
30
60
90
24
20
18
74
57
45
39
32
28
99
74
55
46
38
32
88
62
52
43
36
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1913-70
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
26
10%
20
5%
17
20%
25%
30%
40%
50%
60%
70%
75%
80%
15
15
14
13
13
12
ii
II
10
85%
9.7
90%
8.6
95%
7.7
20
I4ALHEUR AN)) F4ARi4EY LAKES BASIN
10403000
SILVER CREEK NEAR RILEY, OR
LOCATION.--Lat 43'41'30". long 11939'30", In E-l/2 s.c.1, 1.22 S., R.25 E., I-rney County. Hydrologic Unit 17120004, on right bank
0.4 ml downstream from ugh Creek, 1.4 ci upsiree. fr
Nicoll Creek, and 14 mi northwest of Riley.
DRAINAGE AREA.--228 m12.
PERIOD OF RECORO.--June 1951 to September 1980.
Detum of gege is 4,449.70 ft Netlonel GeodetIc Vertical Datum of 1929.
GAGE.--Water-stage recorder.
REMARXS.--No regulation.
Diversions for Irrigetlon ebove itetlon.
AVERAGE DISCHARGE.--29 yeers, 42.8 ft'/s, 31.010 mcre-ft/yr.
dTscherge. 1.810 tt'/s Dcc. 22, 1964, gage height, 7.49 ft; no flow at times.
EXTREMES FOR PERIOD OF RECORO.--Neximu
STATISTICAL SUMMARIES
MONTHLY AM) ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1953-80
1952-80
STANOA
MONTH
MINIMUM
MAXIMUM
MEAN
ICFS)
(CFS)
ICFS)
1.9
2.6
1.5
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
1.3
1.7
8.8
202
6.5
2.6
JULY
.4
15
AUGUST
SEPTEMBER
.2
11
7.6
2.60
30
49
95
1.38
14
6.1
3.5
2.6
2.3
1.8
1.0
22
43
85
2
5
DAYS)
50%
20%
7
14
80%
315
590
20.9
40.5
15.3
.52
25
50
100
20%
10%
4%
2%
1%
1790
1%
.2
.1
0.0
.3
.2
.5
.8
1.2
1.9
.1
.7
1.0
1.4
2.3
2.8
.3
.6
.9
1.6
100
10
1360
100
2%
1.2
.5
.4
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1952-80
PERIOD
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
(CONSECU-
TIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
1220
1100
1400
1260
1060
60
167
90
131
768
687
580
486
386
280
216
972
30
460
413
348
285
226
2110
1
WEIGI-ITED SKEW
50
5%
.5
.7
1.0
1.4
1.8
2.3
2.7
3.8
120
183
4.0
5
1040
1.6
1.7
1.9
30
60
90
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL. IN
YEARS, AND ANNUAL EXCEEDANCE PROBARILITY, IN PERCENT
2
50%
20
10%
1
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1952-80
1.25
10
3
4.2
8.6
.88
.69
.72
.66
.57
.69
.45
57
lIVE
.7
.9
2.7
1.11
145
PERIOD
(CONSECU-
ANNUAL
RUNOFF
.37
.30
37
21
8.0
4.9
.9
ANNUAL
44
108
209
79
VARIAllOW
1.3
1.5
14
21
121
NAY
JUNE
APRIL
5.4
3.4
4.9
7.1
169
414
711
209
79
DEVJATION
(CFS)
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS. AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE,
COEFFI- PERCENT
CIENT Of'
OF
-.376
3
7
15
871
735
619
487
345
264
926
780
601
415
314
894
677
457
344
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1952-80
DISCHARGE, IN CI'S, WHICH WAS EQIJALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
233
10%
128
15%
20%
77
47
25%
30%
40%
21
II
50%
6.6
60%
4.8
70%
3.7
75%
3.3
80%
2.9
85%
2.4
90%
1.9
95%
1.3
21
ALVORD LAKE BASIN
10406500
TROUT CREEK NEAR DENIO, NV
LOCATION.--Lat 42'09'2O", long 11827'30", in SW sec.26, T.39 S., R.36 E., Harney County, Hydrologic Unit 17120009. on right bank
0.4 ci upstream from bridge at mouth of canyon, 5 ml east of Trout Creek Ranch, and 14 mi northeast of Den 10.
DRAINAGE AREA.--88 mi2, approximately.
rch 1925 to September 1931 (irrigation seasons only),
PERIOD OF RECORD.--March 1911 to March 1912, April 1922 to November 1923,
April 1932 to September 1982. Prior to Oct. 1, 1961, published as "near Denio, Oreg."
GAGE.--Water-stage recorder. Datum of gage is 4,351.52 ft National Geodetic Vertical Datum of 1929.
Mar. 25, 1911, to Mar. 31,
Apr. 28, 1922, to June 14, 1932, water-stage recorder at
1912, nonrecording gage at bridge 0.4 ci downstream at different datum.
site 10 ft upstream at datum 0.50 ft higher.
REMARXS.--No regulation.
Diversions for irrigation above station.
AVERAGE DISCHARGE.--51 years (water years 1923, 1933-82), 15.7 ft3/s, 11,370 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum dIscharge, 470 ft3/s Aug. 1, 1933, gage heIght. 5.26 ft, from rating curve extended above 230
ft/s; minimum observed, 0.10 ft/s Aug. 4, 1930, Aug. 1, Sept. 12, 28, 1934. Probably no flow at times Sept. 1-19, 1931.
EXTREMES OUTSIDE PERIOO OF RECORD.--Maximtmi stage, 6.0 ft. caused by cloudburst, probably occurred in 1924 or 1925.
STATIST ICAL S4MARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
MEAN
(CFS)
STANDARD
DEVIAlION
ICFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1934-82
1933-82
PERIOD
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
1.8
3.0
2.9
2.9
3.4
4.5
7.7
4.4
2.5
1.0
MAY
JUNE
JULY
AUGUST
SEPTEMBER
9.7
13
24
29
69
105
151
92
9.1
6.7
.1
3.8
1.6
1.7
37
1.7
.28
.34
.51
.57
.76
.60
.56
.68
.70
.53
.47
7.0
.44
14
11
33
60
33
20
34
22
6.8
1.9
16
2.6
3.3
3.4
3.8
4.6
7.3
17.6
31.4
.32
2.2
3.7
5.0
9.7
3.7
3.5
41
.1
ANNUAL
5.0
6.2
6.4
7.3
8.8
10
2
5
50%
20%
10
25
10%
4%
50
2%
2.1
30
2.2
2.4
2.6
3.0
60
90
3.5
3.9
120
183
4.3
5.0
7
14
17.1
5.1
1.9
1.9
115
195
257
343
413
10%
.6
.6
.7
.4
.4
.4
.8
.5
.9
.6
1.1
.7
1.0
1.0
1.1
1.3
1.5
1.9
2.3
2.8
3.6
100
50
2%
1%
.2
.2
.1
.2
.2
.2
.2
.3
.3
.2
.2
.1
1.6
2.1
1.2
.7
1.6
1.1
.5
.9
2.9
2.4
1.9
1.6
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1933-82
PERIOD
(CONSECUlIVE
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
20%
10%
25
4%
50
2%
100
50%
155
147
134
¶17
100
78
200
183
257
301
226
255
209
63
10
1%
488
7
93
90
84
15
75
30
60
64
50
40
1
WEIGHTED SKEW =
20
5%
10
100
DAYS)
66
5
20%
3
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE INTERVAL, IN
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
2
50%
1
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1933-82
80%
DISCHARGE, IN CES, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
-.147
3
90
162
140
120
191
141
177
153
94
111
121
346
282
224
188
163
130
75
89
98
106
85%
90%
164
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1933-82
DISCHARGE,
5%
67
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
10%
15%
20%
25%
30%
43
29
21
¶5
12
40%
8.3
50%
6.8
60%
5.8
70%
5.0
75%
4.5
80%
4.0
3.5
2.8
95%
2.0
22
CENTRAL VALLEY IN OREGON-CALIFORNIA
GOOSE LAKE BASIN
11339500
DREWS CREEK NEAR LAKEVIEbI, OR
LOCATION.--Lat 42O7'1O", long l2O34'45",
in NWNEL sec.1O, T.40 S., R.18 E., Lake county, Hydrologic Unit 18020001, on left bank
10 ft upstream from brIdge, 2.0 mi downstream from WI I low Creek, 2.7 mi downstream from Drews Dam. and 13 ml southwest of
Lakev jew.
DRAINAGE AREA.--212 mi2.
PERIOD OF RECORD.--January 1909 to Senteriber 1930 (yearly estimate Only for water year 1920), March 1931 to September 1936
(irrigation seasons only), April 1937 to September 938, i-larch 1939 to October 1941, February 1942, April 1942 10 September 1952,
February 1953 to September 1981. Monthly discharge only October 1921 to September 1925, published in WSP 1315-A.
Published as
"Drew Creek near Lakeview" October 1918 to September 1959.
GAGE.--Water-stage recorder. Datum of gage is 4,827.0 ft National Geodetic Vertical Datum of 1929 (levels by Bureau of Reclamation).
See WSP 1931 for history of changes prior to July 4, 1953.
flow regulated by
Since 1912,
REMARKS.--Record herein, except average discharge, not adjusted for diversion by North Drews Canal.
Drews Reservoir, capacity, 52,550 acre-ft.
Diversion for irrigation above station, and since March 1914, North Drews Canal has
diverted above station for irrigation 0f lands west of Lakeview.
Records in files of Oregon Water Resources Department.
AVERAGE DISCHARGE.--50 yearn )water years 1913-30, 1938, 1940-41, 1947, 1954-811, 70.6 ft3/s, 51,150 acre-ft/yr, including diversion
by North Drews Canal.
EXTREMES FOR PERIOD OF RECORD.--Maxjmum discharge, about 3,000 ft3/s Mar.
no flow at times.
2, 1910, from rating curve extended above 1,200 ft3/s;
1,
STATISTICAL SUMMARIES IRIVER DISCHARGE ONLY)
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1914-81
1913-81
STANDARD
DEVIAMONTH
MINIMUM
MAXIMUM
MEAN
(CFS)
(CFS)
ICES)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
0.0
0.0
0.0
0.0
.5
.7
.6
TION
(CFSI
3.2
3.4
25
43
209
12
351
20
395
589
41
922
COEFFI- PERCENT
CIENT OF
OF
VARI-
.2
.2
.1
7
.2
.1
14
1.1
.3
.2
30
.3
.7
.8
.5
90
1.3
1.3
1.8
.5
.5
.2
.4
.4
20
83
2.5
5.0
1.31
26.0
117
18.5
40
22
22
ANNUAL
3.9
172
52
42
.82
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
5
50%
20%
10
10%
25
4%
.7
.5
:3
.3
.3
1.5
1.0
.7
.5
1.1
2.2
.1
.1
:3
.2
.2
.5
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1913-81
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
1.25
80%
1%
.3
210
15
100
2%
.3
.3
60
21
50
5%
.4
15.2
51
20
10%
.4
.4
1.37
9.1
8.2
6.6
3.4
10
.9
128
80
84
63
.5
5
20%
.9
1.0
94
160
114
56
33
2
50%
1
3.2
6.7
0.0
0.0
201
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEOANCE PROBABILITY, IN PERCENT
3
3.26
2.99
2.05
AUGUST
SEPTEMBER
531
1.8
.5
.6
1.9
1.46
1.87
39
59
85
1.03
.60
.44
.55
.72
6.9
JULY
ICONSECUTIVE
DAYS)
ANNUAL
RUNOFF
ATION
4.6
6.4
PERIOD
IN
50
100
28
18
PERIOD
(CONSECUTIVE
DAYS)
1
WEIGHTED SKEW =
3
7
15
30
60
90
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
50%
20%
255
250
240
215
176
133
636
616
582
509
404
299
111
231
25
4%
50
100
2%
1%
1560
1470
1340
1150
898
2060
1920
1720
1470
1150
784
582
2620
2410
2140
10
10%
993
951
885
767
602
423
329
620
469
1810
1420
963
702
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1913-81
DISCHARGE,
5
266
10%
106
IN DES, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
15%
20%
25%
3O
78
67
56
45
50%
25
2
60%
5.3
70%
3.3
75%
2.2
80%
1.6
85%
1.2
90%
1.0
95%
.6
23
GOOSE LANE BASIN
11 34O5C)G
COTTONWOOD CREEK NEAR LAKEV I EN, OR
LOCATION.--Lat 4214'14", long 12O7Ol5", in SESW
sec.29, T.311 S., R.19 E., Lake County, Hydrologic Unit 18020001, on right bank
0.5 mi downstream from Cottonwood Darn and 9 ml northwest of Lakeview.
DRAINAGE AREA.--32.9 rn)2.
PERIOD OF RECORO.--November 1908 to September 1919, hay 1924 to November 1935, March to December 1936, April to December 1937, April
1938 to November 1942, I-larch to November 1943, i-larch to October 1944, February to November 1945, March 1946 to September 1981.
Monthly discharge Only May 1924 to September 1925, published in WSP 1315-A.
GAGE.--Water-stage recorder. Datum of Gage
5 4,94g37 ft National Geodetic Vertical Datum of 1929 (levels by Bureau of
Reclamation).
Prior to June 1, 1919, and May 1, 1924, to June 3, 1932, nonrecording gage at several sites within 0.6 mi upstream
at different datums.
June
to Sept. 3D, 1919, and June 4, 1932, to Sept. 14, 1961, water-stage recorder at site 0.6 mi upstream
at different datums.
1
REMARKS.--Flow regulated since 1923 by Cottonwood Reservoir, capacity, 7.540 acre-ft.
Since October 1961, 240 acre-ft unregulated
storage in Cottonwood Meadows, 9 mi upstream.
Records in files of Oregon Water
Diversions for irrigation above station.
Resources Department.
AVERAGE DISCHARGE.--60 years (water yours 1910-19, 1925-35, 1939-42, 1947-811, 21.1 ft3/s, 15,290 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--llaxirnum discharge, between 500 and 1,000 ft3/s during period Apr. 26 to May 1. 1927, when natural
flow, estimated as 170 ft3/s, was augmented by water escaping from resarvoir through break in outlet conduit near control gates;
no flow at times.
STATISTICAL SUMI-IARIES (BEFORE THE CONSTRUCTION OF COTTONWOOD RESERVOIR)
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
(CFS)
(CFS)
2.2
5.0
3.7
2.0
3.4
8.6
MEAN
(CFSI
4.7
12
34
11
29
10
14
41
39
17
137
'1.7
89
1.7
1.4
18
1.5
4.1
5.5
3.0
.26
13
40
40
36
3D
27
ICONSECU-
TIVE
2
5
DAYS)
50%
20%
.90
.95
.93
.65
18.7
.43
28.6
185
2
5
20%
239
304
10
25
10%
4%
.52
.83
5.9
2.1
1.2
.6)
.51
21.1
11.0
2.9
1.3
.40
.9
9.4
.34
50
2%
20
5%
50
2%
100
1%
LESS THAN 10 NON-ZERO EVENTS RECORDED.
NOTE:
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1910-19
PERIOD
(CONSECUTIVE
DAYS)
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
10
2
5
50%
20%
10%
225
198
297
247
208
176
340
273
234
198
166
143
123
25
4%
50
100
2%
1%
85%
90%
95%
343
1
WEIGHTED SKEW =
10%
4.3
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
10
3.1
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1910-19
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
1.0
3.7
3.3
1.12
9.9
9.8
9.6
PERIOD
PERCENT
dENT OF
OF
VARIANNUAL
ATION
RUNOFF
.9
94
69
36
7.6
COEFFI-
14
61
40
13
(CFS)
3.4
50
130
156
STANDARD
DEVIATION
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1911-19
1910-19
-.188
3
7
15
166
139
121
30
60
90
98
80
151
128
108
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1910-19
DISCHARGE,
5%
122
0%
90
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
15%
20%
25%
30%
40%
65
42
31
20
12
50%
7.7
6O
5.7
70%
4.3
75%
3.8
80%
3.4
3.1
2.3
2.0
GOOSE LAKE BASIN
24
11340500
COTTONWOOD CREEK NEAR LAKEVIEW, OR--Continued
STATISTICAL SUMMARIES (AFTER THE COMPLETION OF COTTONWOOD RESERVOIR)
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
1926-81
BASED ON PERIOD OF RECORD
1925-81
DARD
DEVIAMINIMUM
(CFS)
MONTH
MAXIMUM
MEAN
lION
(CFS)
(CFS)
(CFS)
OCTOBER
NOVEMBER
DECEMBER
.3
16
.1
.1
JANUARY
FEBRUARY
0.0
0.0
0.0
26
46
62
MAY
.5
1.1
JUNE
3.0
JULY
1.0
100
77
143
153
100
74
AUGUST
0.0
61
.1
39
2.2
56
MARCH
APRIL
SEPTEMBER
ANNUAL
2.7
3.2
5.5
5.5
7.8
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
2.9
4.1
12
16
2.13
2.03
21
1.39
.96
.64
.47
.53
.85
1.17
39
35
55
44
21
16
17
31
20
8.5
9.9
20
TIVE
2
5
DAYS)
50%
20%
1.1
1.3
30
60
90
120
17.1
23.0
18.4
12.9
183
2
5
20%
1%
.1
0.0
.1
.1
.1
.1
.1
.1
.5
.6
1.1
1.3
1.6
2.5
2
.1
3
.2
.2
.3
.4
.8
2
4
5
7
2
0.0
0.0
0.0
.1
.1
.1
.1
.1
.2
.2
.6
0.0
0.0
0.0
0.0
.1
.1
.1
.1
.3
.4
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD
1925-81
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
50%
100
2%
100
DISCHARGE,
1.25
50
5%
8.5
3.5
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
80%
20
10%
2
2
7
14
10
.4
.4
.5
1
3
2.3
2.3
3.3
6.2
.58
11
PERIOD
(CONSECU-
RUNOFF
1.04
1.26
1.72
9.5
15
41
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS. AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE,
STAN-
10
25
50
100
10%
4%
2%
1%
PERIOD
(CONSECU-
WEIGHTED SKEW =
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
lIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
1
111
3
103
7
91
78
63
53
47
253
229
193
155
128
105
328
295
245
193
382
343
284
220
435
390
15
195
178
152
124
102
85
75
160
130
110
184
148
123
30
60
90
91
321
246
207
164
134
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1925-81
DISCHARGE,
5%
84
0%
60
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
15%
20%
25%
30%
40%
47
37
29
22
10
50%
4.3
60%
2.7
80%
70%
1.8
1.4
1.1
85%
.8
90%
.5
95%
.2
25
KLAMATH RIVER BASIN
WILLIAMSON RIVER NEAR KLAMATH AGENCY, OR
11493500
LOCATION.--L.at 42°4425", long l215O'OO", in NWSW sec.1, 1.33 5., R.7 E., Klarnath County, Hydrologic Unit 18010201, on right bank
250 ft downstream from highway bridge. 0.6 ml southwest of railroad station at Kirk, 10 mi upstream from Spring Creek, and 10 ml
northeast of Kiamath Agency.
DRAINAGE AREA.--1,290 mi, approximately.
1909 to June 1910, October 1954 to September 1982.
PERIOD OF RECORD.--March 1908 to January 1909, April
1910, publ shed in NSF 1315-B.
Monthly discharge only June
Mar. 25, 1908, to June 30,
GAGE.--Water-stage recorder. Datum of gage is 4,483.16 ft National Geodetic Vertical Datum of 1929.
Oct. 1, 1954, to Sept.
1910, nonrecording gage or water-stage recorder at two sites about 0.5 ml upstream at different datums.
30, 1955, water-stage recorder at present site at datum 2.05 ft higher.
Small diversions above station for irrigation in vicinity of marsh.
REMARKS.--FIow affected by natural storage in Klamath Marsh.
AVERAGE DISCHARGE.--28 years (water years 1955-82), 200 ft3/s, 144,900 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge observed, 1,590 ft3/s Mar. 13, 1910, gage height, 3.7 ft, site and datum then in
use, from rating curve extended above BOO ft3/s; maximum gage height, 5.57 ft Mar. 3, 1958; no flow at times during 1960-74,
1g77-81
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
ICFS)
MEAN
(CFS
STANDARD
DEVIATION
(CFS
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1956-82
1955-82
PERIOD
(CONSECUlIVE
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
0.0
0.0
56
62
60
128
128
28
0.0
0.0
0.0
0.0
62
255
391
580
730
799
1033
1080
45
71
1.57
127
114
126
.90
171
.67
.55
.49
.49
.73
245
257
335
453
470
277
952
1.9
5.3
10.2
10.7
13.9
18.8
19.5
11.5
5.3
.51
184
220
230
531
332
146
96
127
201
134
46
81
1.06
1.74
15
12
34
26
2.34
2.12
468
200
99
.50
2
5
50%
20%
666
908
-34
120
183
50
2%
100
1%
-6.0
--
--
1.8
.1
.5
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
1955-82
BASED ON PERIOD OF RECORD
25
50
100
4%
2%
1%
PERIOD
(CONSECUTIVE
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
25
4%
50
2%
1220
1220
1200
1150
1060
956
1340
1330
1310
1260
1160
1060
854
959
10
2
5
50%
20%
10%
655
650
638
616
904
899
883
850
1050
1050
1030
571
783
492
684
431
600
100
1%
1420
1
WEIGHTED SKEW =
5%
LOW-FLOW STATISTICS UNCERTAIN DUE TO EXCESSIVE
ZERO EVENTS.
NOTE:
.5
10%
1270
20
10%
30
60
90
1.9
.6
10
1070
10
14
DAYS)
490
5
20%
1
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
.25
2
505
3
7
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1955-82
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.017
3
7
15
30
60
90
990
910
807
712
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1955-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
687
10%
533
15%
430
20%
373
25%
316
30
272
405
198
50%
134
605
70%
76
27
75%
7.2
80%
85%
0.0
905
0.0
955
0.0
26
KLAMATH RIVER BASIN
11497500
SPRAGUE RIVER NEAR BEATTY, OR
LOCAIION.--Lat 4226'5O", long 121°14'15", in NWSE sec.13, 1.36 S., R.12 E., Klamath County, Hydrologic Unit 18010202, on right
bank 1.6 ml east of Beatty, and 4.6 mi upstream from Sycan River
DRAINAGE AREA.--513 mia.
PERIOD OF RECORD.--Apri I to September 1912 and November 1912 to SepIember 1913 (fragmentary), October 1913 to September 1915,
February to November 1916, March 1917 to June 1918, May 1919 to October 1920, February 1921 to September 1926 (irrigation seasons
Prior to October 1917,
only>, October 1953 to September 1982.
Monthly discharge only October 1913, published in WSP 1315-B.
published as "near Yeinax."
Apr. 19, 1912, to Feb. >9,
GAGE.--Water-stage recorder. Datum of gage is 4,305.35 ft National Geodetic Vertical Datum of 1929.
1914, nonrecording gage. Feb. 20, 1914, to Sept. 11. 1917, water-stage recorder; and Sept. 12, 1917, to Sept. 30, 1926.
nonrecording gage, at site 2 mi upstream at different datum.
REMARKS.--No regulation.
Diversions for irrigation above station in the vicinity of Bly.
AVERAGE DISCHARGE.--32 years (water years 1914-15, 1920. 1954-82)
309 ft3/s, 223,900 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 6,980 ft3/s Dec. 23, 1964, gage height, 12.19 ft; minimum, 50 ft3/s Aug. 25.
STAll STICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
(CFS)
(CFS)
122
140
133
128
151
147
131
163
147
89
72
85
131
MEAN
(CFS>
422
410
1157
898
1102
1217
1673
1703
757
313
210
STANDARD
OEVIAlION
(CFS)
169
197
289
PERIOD
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
64
218
218
225
.61
9.5
11.3
15.9
30
60
90
18.4
9.1
120
183
110
118
126
134
154
31
20
643
320
124
.39
680
20%
1260
2330
10%
3220
4550
73
75
80
108
117
137
91
100
68
73
84
93
110
129
104
123
100
1%
117
3.2
3.4
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1954-82
PERIOD
100
1%
DISCHARGE. IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
SECUlIVE
2
5
10
25
DAYS>
50%
20%
10%
4%
7
1390
1210
1030
2440
2130
1760
15
906
784
1450
1220
1010
882
4290
3810
3040
2280
30
60
90
3220
2840
2300
1820
1500
50
2%
100
1%
5680
1
WEIGHTED SKEW =
10
4.3
ICON50%
54
56
58
60
65
77
87
98
104
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
80%
64
65
101
130
50
2%
62
71
7
.54
.56
.47
25
4%
69
14
121
10
78
80
82
84
90
99
7.5
8.0
173
5
50
2%
.71
.34
.25
.15
2
20
5%
97
98
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1914-82
1.25
10%
1
.51
55
5
20%
3
329
164
2
50%
5.1
221
392
(CONSECUlIVE
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
4.4
.33
.32
.75
56
307
366
435
609
706
348
164
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1955-82
1954-82
3
.010
659
585
1230
1070
1830
1510
1310
5130
4590
3620
2610
2070
1700
1470
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1954-82
DISCHARGE,
5%
972
10%
686
15%
526
20%
431
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
359
30%
299
40%
231
50%
192
60%
I71
70%
155
75%
147
80%
I 39
85%
129
90%
117
95%
103
1981.
KLAMATH RIVER BASIN
11501000
27
SPRAGUE RIVER NEAR CHILOQUIN, OR
LOCATION.--Lat 4235'O5", long 12l5O'55", in NEiNW sec.35, 1.34 S., R.7 E., Kiarnath County, Hydrologic Unit 18010202, on right bank
1.0 ml northeast of Chiloquin, 4.6 ml upstream from Modoc Point Canal intake, and at mile 5.4.
DRAINAGE AREA.--1,580 mi2, approximately.
PERIOD OF RECORD.--July to October 1920, March 1921 to September 1982. Monthly discharge only July 1920, published in WSP 1315-B.
Prior to October 1931, published as 'at McCready Ranch, near Chiloquin."
GAGE.--Water-stage recorder. Datum of gage is 4,202.43 ft National Geodetic Vertical Datum of 1929.
nonrecording gage at site 12 ml upstream at different datum.
REMARKS.--Mjnor regulation from irrigation diversions above
Prior to Oct.
1,
1931,
station.
AVERAGE DISCHARGE.--61 years (water years 1922-82), 577 ft/s,
418,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 14.900 ft3/s Dec. 25, 1964, gage height, 10.37 ft; minimum daily, 50 ft3/s May 26,
1926.
STAll STICAL SUMMARI ES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
MEAN
(CFS)
ICFS)
(CFS)
1922-82
STANDARD
DEVIATION
(CFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1923-82
COEFFI-
PERCENT
dENT OF
OF
VARIATION
ANNUAL
RUNOFF
PERIOD
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
183
219
848
789
215
2853
481
519
665
850
1278
1156
601
283
225
196
1961
223
288
263
2764
2904
4250
184
169
3211
1686
141
AUGUST
SEPTEMBER
113
140
552
405
375
ANNUAL
220
1395
295
342
93
.59
4.3
4.9
6.9
7.5
9.6
12.3
.72
.63
18.4
16.7
.58
8.7
.36
.25
4.1
238
351
103
55
48
.20
3.4
577
264
.46
.32
.29
99
395
407
.82
.78
.75
497
505
924
724
1
3
7
14
30
60
90
120
183
2
50%
2040
5
10
25
50
100
20%
10%
4%
2%
1%
3930
PERIOD
ICONSECUTIVE
90
8210
10600
83
101
67
88
121
131
144
127
192
205
217
228
152
134
147
241
275
200
227
114
120
133
146
157
168
188
10%
165
177
188
160
170
182
205
100
1%
58
81
93
98
101
107
120
133
143
124
154
171
145
160
111
135
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
2
5
50%
205
1990
3850
3690
3290
2790
2350
10
10%
25
4%
50
2%
100
5500
5220
4590
3790
3140
2550
2170
8110
7610
6530
5240
4260
3390
2850
10500
9730
8220
6450
5170
4070
3390
13200
12200
10100
7750
6150
4790
3960
1%
13300
1
WEIGHTED SKEW
99
114
168
172
184
10
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1922-82
DAYS)
1090
50
2%
5
20%
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
1.25
20
5%
2
50%
3.2
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1922-82
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.144
3
930
7
1760
1540
1330
(130
1020
15
30
60
90
1940
1680
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1922-82
DISCHARGE,
5%
1780
10%
1250
15%
5O
20%
746
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
617
30%
520
40%
410
50%
3O
60%
308
70%
273
75%
256
80%
240
85%
223
90%
203
95%
176
KLAMATH RIVER BASIN
28
11502500
WILLIAMSON RIVER BELOW SPRAGUE RIVER, NEAR CHILOQUIN, OR
LOCATION.--Lat 4234'15', long 121'5235", In NE*NE* sec.4, 1.35 S.. R.7 E., Klmmath County. Hydrologic Unit 18010202, on
0.2 mi downstream from Sprague River and 0.8 ml southwest of Chlloquin.
right bank
DRAINAGE AREA.--3,000 m12, approximately.
PERIOD OF RECORD.--June 1917 to September 1982.
Prior to Sept. 1, 1923, at
Datum of gage is 4,155.55 ft National Geodetic Vertical Datum of 1929.
GAGE.--Water-stage recorder.
different datum.
Diversions for irrigation above station.
REMARKS.--Some regulation by diversion dams and Iogpond operations of Sprague River.
AVERAGE DISCHARGE.--65 years, 1,040 ft3/s, 753,500 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Mmximum discharge, 16,100 ft3/s Dec. 26, 1964, gage height, 10.56 ft; minimum, 320 ft3/s Oct. 14,
1920.
STAT I ST (CAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIAlION
(CFS)
(CFS)
(CFS)
(CFS)
517
1003
909
475
399
382
440
1278
619
174
934
872
551
571
95
.17
83
.15
ANNUAL
548
2187
1043
359
.34
554
524
547
669
595
472
458
1237
1345
3682
3075
3846
4256
5488
4376
2658
658
759
959
993
1222
1528
1990
1686
PERIOD
COEFFI- PERCENT
CIENT OF
OF
ANNUAL
VARIATION
RUNOFF
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
561
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
1919-82
BASED ON PERIOD OF RECORD
1918-82
143
186
.22
.25
490
539
659
713
.51
1136
.57
.54
.47
.28
(CONSECUlIVE
DAYS)
5.2
.54
.54
.47
1
6.1
3
7.6
7.9
9.7
12.2
15.9
13.4
8.0
4.9
4.4
4.6
7
14
60
90
120
183
80%
1800
5
50%
20%
2910
4920
10
10%
6610
25
4%
9180
50
100
2%
1%
11500
10
20
50
100
10%
5%
2%
1%
477
483
492
419
425
436
448
378
361
384
368
383
352
359
375
399
391
461
395
401
414
427
443
474
486
500
542
456
468
482
518
419
433
447
460
490
413
428
442
456
483
610
398
412
430
443
456
470
503
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1918-82
PERIOD
(CONSECU-
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
TIVE
2
5
50%
20%
10%
25
4%
50
2%
100
DAYS)
2780
2690
2520
2290
2060
4790
4610
4230
3730
3250
2780
2460
6510
6240
5630
4850
4140
3490
3050
9160
8730
7750
6460
5390
4450
3850
11500
11000
14300
13500
11700
10
1%
14100
1
WEIGHTED SKEW =
5
20%
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
2
50%
501
512
525
538
556
30
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1917-82
1.25
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
3
7
.337
15
30
60
90
1820
1650
9590
7810
6410
5230
4490
9300
7510
6050
5160
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1918-82
DISCHARGE,
5%
2650
10%
1940
15%
1580
20%
1340
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
1170
30%
1050
40%
874
50%
749
60%
662
70%
611
75%
587
80%
564
85%
542
90%
514
95%
482
29
KLAMATH RIVER BASIN
WOOD RIVER AT FORT KLAMATH, OR
11504000
LOCATION.--Lat 4242'O5", long 12159'2O", in sec.22, T.33 S., R.7-1/2., Klamath County, Hydrologic Unit 18010203, at highway bridge
0.2 ml east of Fort Klamath.
DRAINAGE AREA.--90 mi2, approximately.
PERIOD OF RECORD.--April
1913 to September 1916, October 1918 to September 1919, October 1923 to September 1936.
Prior to Aug. 21, 1923, near described
GAGE.--Staff gage.
Datum of gage is 4,166.65 ft National Geodetic Vertical Datum of 1929.
Oct. 1, 1923 to Sept. 30, 1925, a±
site at datum 0.19 ft lower. Aug. 21 to Sept. 30, 1923, 0.2 ml downstream at different datum.
described site at datum 0.81 ft higher.
RE1IARKS.--Many diversions for irrigation above station.
Regulation by diversion dams.
AVERAGE DISCHARGE.--17 years (water years 1914-16, 1919, 1924-36), 215 ft3ls.
1920, gage height, 2.41 ft, from rating curve extended
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge observed, 520 ft3/s Nov. 17.
above 350 ft3/s; minimum, 84 ft3/s in July, August, September, 1931.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
1QNTl
MINIMUM
MAXIMUM
(CFS)
ICES)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
131
143
ANNUAL
MEAN
(CFS)
222
230
226
219
225
236
237
93
87
110
300
310
308
312
323
338
363
340
345
325
293
282
141
311
143
148
145
176
160
112
101
STANDARD
DEVIATION
(CFS)
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
49
.22
.21
189
176
199
49
49
47
47
50
54
57
63
65
59
55
215
47
.22
211
208
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD
1915-36
1914-36
PERIOD
(CONSECUTIVE
8.6
8.9
8.8
8.5
8.7
9.2
9.2
8.2
.22
.22
.21
.21
.23
.27
.30
.34
.34
.27
DAYS)
2
50%
20%
1
141
109
3
7
144
148
ill
14
151
30
60
90
155
160
167
174
182
120
183
8.1
318
50%
20%
371
435
10
10%
475
25
4%
50
2%
PERIOD
(CONSECU-
100
1
96
98
99
87
102
104
107
112
116
127
92
93
96
50
2%
100
1%
89
89
100
103
114
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
TIVE
2
5
DAYSI
50%
20%
351
320
407
366
296
277
260
342
322
305
248
243
292
287
10
10%
25
4%
435
390
367
348
464
415
396
380
366
50
2%
100
1%
522
1
WEIGHTED SKEW =
20
5%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1914-36
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
5
114
116
119
123
128
133
144
10
10%
100
DISCHARGE,
2
5
7.3
6.8
7.7
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1914-36
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
.166
3
7
15
30
60
90
332
319
314
351
346
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1914-36
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
315
10%
296
15%
280
20%
270
25%
258
30%
248
40%
231
50%
214
60%
196
70%
179
80%
75%
170
1
64
85%
153
90%
141
95%
126
30
KLAMATH RIVER BASIN
KLAMATH RIVER AT KENO, OR
11509500
sec.35, T.39 S., R.7 E., Kiamath County, Hydrologic Unit 18010206, on left bank
1.7 mi northwest of Keno and 4.5 ml upstream from Spencer Creek.
LOCATION.--Lat 42O8'O0', long 12157'4O', in NWSE
DRAINAGE AREA.--3,920 mi2, approximately (not including Lost River or Lower Klamath Lake basins).
PERIOD OR RECORD.--June 1904 to December 1913. October 1929 to September 1982. Monthly discharge only October to December 1929,
published in WSP 1315-B.
GAGE.--Water-stage recorder. Datum of gage is 3,961 ft National Geodetic Vertical Datum of 1929 (from river-profile survey).
WSP 1735 for history of changes prior to Nov. 6, 1954.
See
Diversions for irrigation above station.
REMARKS.--Flow regulated since 1919 by Upper Klamath Lake.
AVERAGE DISCHARGE.--62 years, 1,668 ft3/s, 1,208,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximumn discharge, 10,200 fttm/s Feb. 24, 1982, gage height, 12.74 ft, caused by regulation from Keno
Dam 0.9 mi upstream; minimum, 26 fttm/s Sept. 23, 1956; minimum daily, 60 fttm/s May 19, 1934.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum stage, 15.3 ft, from floodmark (original datum), about ly 10, 1904, discharge, 9,250
ft3/s.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD
1906-82
1905-82
STAN-
MONTH
MINIMUM
MAXIMUM
(CFSI
(CFS)
MEAN
(CFS)
DARD
DEVIAlION
(CFS)
PERIOD
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
(CONSECUlIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
564
290
ANNUAL
1447
1678
1909
472
.33
691
.41
867
.45
2045
2154
2452
2287
1261
.62
.66
.72
.73
.72
114
3055
3976
3859
7702
7564
8191
6594
5258
37(3
2748
202
334
1898
1006
2214
546
3582
391
542
324
229
166
109
98
1787
1412
1777
1669
1292
1141
927
.81
898
.66
1241
590
424
405
1668
673
.40
7.2
8.4
9.5
10.2
.42
.33
1
300
371
7
409
14
443
500
200
226
248
293
347
434
569
690
811
1050
120
183
2810
50%
20%
4110
6120
10
25
10%
4%
759n
9610
50
2%
11200
50
2%
1%
110
144
165
182
221
84
61
110
127
140
174
80
95
50
65
78
86
213
263
313
437
266
332
399
550
521
705
100
105
133
165
111
139
200
233
165
189
330
269
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
1905-82
BASED ON PERIOD OF RECORD
IN
PERIOD
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
SECU-
100
TIVE
DAYSI
1%
2
5
20%
10%
25
4%
50
2%
100
50%
3840
3740
3590
3350
3100
2770
2530
5830
5730
5570
5210
4770
4220
3850
7310
7210
7030
6590
6000
5220
4760
9340
9260
9040
8490
7660
6520
5930
11000
10900
10700
10000
12700
12700
12400
11600
10400
10
1%
13000
1
WEIGHTED SKEW =
20
5%
100
(CON5
10
10%
6.2
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
5
20%
3
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1905-82
1.25
80%
2
50%
155
30
60
90
10.7
12.2
11.4
8.9
5.7
4.5
5.0
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.162
3
7
15
30
60
90
8970
7510
6830
8500
7730
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1905-82
DISCHARGE,
5%
4220
10%
3150
15%
2710
20%
2480
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
255
2210
30%
1970
40%
1610
50%
1330
60%
1120
70%
920
75%
821
80%
706
85%
578
90%
442
95%
304
31
KLAMATH RIVER BASIN
11510700
KLAMATH RIVER BELOW JOHN C. BOYLE POWERPLANT, NEAR KENO, OR
LOCATION.--Lat 42'05'05", long 122°04'20", in SESE sec.14, T.40 S., R.6 E. , Klamath County, Hydrologic Unit 18010206, on right bank
0.7 ml downstream from John C. Boyle powerplant, 8 ml downstream from Spencer Creek, and 8.5 ml southwest of Keno.
DRAINAGE AREA.--4,ORO mi2, approximately (not including Lost River or Lower Klamath Lake basins).
PERIOD OF RECORD.-- January 1959 to September 1982.
GAGE.--Water-stage recorder.
Co.).
Prior to Oct.
1,
1961, published as 'below Big Bend powerplant."
Datum of gage is 3,274.82 ft National Geodetic Vertical Datum of 1929 (levels by Pacific Power & Light
REMARKS.--Flow regulated by Upper Klamath Lake.
Large diurnal fluctuation caused by John C. Boyle powerplant and 2 powerplants below
Upper Kiamath Lake.
Diversions for irrigation above station.
AVERAGE DISCHARGE.--23 years, 1,829 ft3/s, 1,325,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maxirnum discharge, 11,000 ft3/s Mar. 5,
minimum daily, 317 ft3/s July 25, 1968.
1972, gage height, 9.33 ft; minimum, 283 ft3/s Feb. 17, 1968;
STATI STICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
MEAN
(CFS)
STANDARD
DEVIATION
(CFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD
1962-82
1961-82
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
PERIOD
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
786
897
1112
1174
1091
634
723
591
2568
3989
3895
7905
7780
8755
5645
3935
1742
1603
2060
2573
2786
2631
2902
2448
1680
785
467
772
803
1454
1590
1916
1505
956
280
.29
.37
7.2
9.3
.31
11.6
12.5
11.8
13.0
11.0
.52
.60
.66
.61
.57
JUNE
JULY
550
590
776
1339
1054
1876
890
1240
175
132
271
.27
AUGUST
SEPTEMBER
1080
2945
1850
531
.29
501
ANNUAL
642
7.6
3.5
2.9
4.0
5.6
.36
.15
.22
5
20%
3410
5130
7830
328
353
428
474
512
320
338
413
463
562
633
550
601
667
779
1
361
402
14
477
514
30
60
90
120
183
601
704
816
1030
551
501
717
855
20
5%
50
2%
100
1%
316
330
404
457
496
543
577
628
723
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1961-82
IN
10
25
50
100
10%
4%
2%
1%
9830
10
10%
7
PERIOD
(CONSECUlIVE
DAYS)
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
50%
20%
10%
25
4%
4920
4830
4640
4190
3770
3290
3000
7470
7290
6950
6300
5620
4750
4280
9320
9070
8650
7890
7030
5800
5190
11800
11500
11000
10100
9030
7210
6420
10
50
100
2%
1%
90%
95%
12600
1
WEIGHTED SKEW
5
20%
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
2
50%
3
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1961-82
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.163
3
7
15
30
60
90
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1961-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
4380
10%
3230
15%
2910
20%
2770
25%
2580
30%
2330
40%
1710
50%
1420
60%
1190
70%
75%
85
R5
80%
771
85%
688
623
530
KLAMATH RIVER BASIN
32
11514500
IcEENE CREEK NEAR ASHLAND, OR
LOCATION.--Lat 42"10'15", long 122°28'40, in NW sec.21, 1.39 S., R.3 E., Jackson County, Hydrologic Unit 18010206, on right bank
0.3 mi upstream from Burnt Creek, 0.6 ml downstream from Hyatt Dam, and 12 ml east of Ashland.
DRAINAGE AREA.--(2.1
nil2.
PERIOD OF RECORD.--Apri I to July 1917, December 1917 to July 1920 (no low-flow records), October 1920 to June 1922, October 1948 to
published as "at Hyatt Prairie, near Ashland"
Monthly discharge only October 1948, published in WSP 1315-B.
September 1965.
December 1917 to July 1920, October 1920 to June 1922, October 1948 to September 1958.
tional Geodetic Vertical Datum of 1929 (by stadia
Datum of gage is 4,706 ft
GAGE.--Water-stage recorder and concrete control.
survey).
Apr. 1, 1917, to June 30, 1922, at site 0.5 ml upstream at different datum.
Practically entire flow diverted below
No diversion above station.
REMARKS.--Flow regulated since December 1922 by Hyatt Reservoir.
station by Green Springs powerplant diversion.
AVERAGE DISCHARGE.--17 years (water years 1949-65), 12.7 ft3/s, 9,190 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 751 ft3/s May 3, 1954, gage height, 5.33 ft, caused by failure of flashboards on
spillway of Hyatt Dam, from rating curve extended above 50 ft3/s on basis of computation of peak flow over Columbus-type control;
rio flow at times.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DI$CHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1950-65
1949-65
STAN-
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFSI
OARD
DEVIATION
MEAN
(CFS)
(CFS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
.1
21
.2
.2
.2
.3
1.9
2.1
32
45
2.4
3.5
.5
9.8
1.5
MAY
JUNE
JULY
.6
.4
6.0
8.5
AUGUST
SEPTEMBER
ANNUAL
65
37
2.8
17
2.36
1.5
.4
.5
.98
.82
.3
.4
7.6
3.18
2.99
1.44
1.6
1.53
3.2
8.6
15.7
11
2.2
7.3
13
24
39
44
81
.5
5.5
.4
4.8
32
38
55
.9
2.3
.6
12
.91
17
.71
22
.57
.44
.70
19
16
11
3.8
13
PERIOD
COEFFI- PERCENT
CIENT OF
OF
ANNUAL
VARIATION
RUNOFF
.30
(CONSECUTIVE
DAYS)
30
60
90
120
2.3
1.0
183
2
5
50%
20%
10
10%
25
4%
50
2%
10
10%
5
20%
.2
.2
.2
.2
.2
.2
.2
.3
.3
.2
.2
.2
.2
.2
.3
.3
.3
.5
1
20
50
100
5%
2%
1%
.1
.1
.1
.1
.1
1
.1
.1
.2
.2
.2
.2
.2
.2
.2
.2
.3
.3
26.0
28.8
10.7
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD
1949-65
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
2
50%
3
7
14
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
PERIOD
(CONSECUTIVE
100
1%
DAYS)
10
25
50
100
20%
10%
4%
2%
1%
112
102
154
122
86
84
80
70
91
79
75
65
55
60
90%
95%
5
2
5O
71
90
3
7
15
70
69
65
88
30
60
90
59
1
WEIGHTED SKEW
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
81
50
42
87
83
74
64
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1949-65
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
10%
15%
20%
25%
52
39
28
17
30%
7.8
40%
1.8
50%
.9
60%
.6
70%
.5
75%
.4
80%
.3
85%
.3
.2
.2
33
OWYHEE RIVER BASIN
13181000
OWYI-IEE RIVER NEAR ROME, OR
LOCATION.--Lat 42°52'02", long 117'38'52", in SENE sec.14, 1.31 S., R.41 E., Malheur County, Hydrologic Unit 17050107, on right
bank 0.5 mi downstream from Jordan Creek, 2.6 ni north of Rome, and at mHe 122.4.
DRAINAGE AREA.--About 8,000 aT2.
PERIOD OF RECORD.--October 1949 to September 1982.
Datum of gage is 3,344.20 ft National Geodetic Vertical Datum of 1929.
GAGE.--Water-stage recorder.
0.24 ft lower.
Prior to Feb 10, 1960, al datum
REMARKS.--Flow regulated since 1914 by Antelope Reservoir, capacity, 45,000 acre-ft (increased to 70,000 acr-e-ft, in 1970). and Wi'd
Horse Reservoir since 1938, capacity, 32,690 acre-ft, and numerous small reservoirs. Diversions above station for irrigation.
AVERAGE DISCHARGE.--33 years, 916 ft3/s, 663,600 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 33,500 ft3/s Dec. 24, 1964, gage height, 16.7 ft, from floodmark; minimum, 42
ft3/s Aug. 12. 1954, July 28. Aug. 5, 1961, July 31, 1968.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1951-82
1950-82
STANDARD
DEVIAMINIMUM
MAXIMUM
MEAN
lION
ICFS)
(CFS)
(CFSI
(CFS)
JUNE
85
107
104
114
129
233
206
124
157
JULY
61
AUGUST
64
63
442
593
2898
4461
5350
9404
16960
6736
2726
652
247
247
188
2357
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
SEPTEMBER
ANNUAL
157
67
205
423
750
95
1206
2072
2976
1847
874
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
948
1167
1911
.92
254
146
136
147
53
52
1.05
.84
.83
.58
.36
.38
917
528
.58
3110
1557
729
lIVE
2
5
50%
20%
1
92
3
95
3.8
6.8
7
14
10.9
18.8
26.9
16.7
60
90
98
102
110
120
130
139
166
30
120
183
7.9
2.3
2
5
20%
50
100
5%
2%
1%
67
69
56
58
72
74
80
88
97
105
123
61
48
50
52
52
58
64
72
40
60
79
69
95
84
67
74
82
90
106
42
43
43
48
54
61
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD
1950-82
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
20
10%
100
DISCHARGE,
1.25
10
1.3
1.2
MAGNITUDE AND PROBABILITY Off INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
DAYS)
1.4
1.9
.43
.46
1.28
1.26
.97
541
PERIOD
(CONSECU-
10
25
50
100
10%
4%
2%
1%
PERIOD
(CONSECU-
TIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
9600
7850
5960
4460
3410
2610
2170
16600
13700
11000
20600
17200
24500
21000
18400
26800
23300
21200
14600
11300
17100
13400
8220
6660
9540
7690
1
WEIGHTED SKEW =
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
3
7
15
30
60
90
8360
6420
4830
3970
14300
11100
8570
6350
5190
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1950-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
3850
iO%
2480
15%
1740
20%
1180
25%
797
30%
576
40%
332
50%
236
60%
194
70%
166
75%
152
80%
138
85%
124
90%
107
95%
87
34
OWYHEE RIVER BASIN
13162000
OlIYHEE RIVER ABOVE LAKE OWYHEE, OR
LOCATIDN.--Lat 4313'34", long 117°29'47", in SE sec.7, 1.27 S., R.43 E., Maiheur County, Hydrologic Unit 17050110, on left bank 3
ml upstream from flow line of Lake Owyhee and 26 ml northeast of Rome.
DRAINAGE AREA.--10,400 mi2, approximately.
PERIOD OF RECORD.--Apr ii
1929 to September 1951.
Month I y discharge only for gorse periods, pub Ii shed in WSP 1317.
Rltitude of 9age is 2,903 ft National Geodetic Vertical Datum of 1929 (levels by Bureau of
GAGE.--Water-stage recorder.
Reclamation).
Diversions above station for
REMARKS.--Flow regulated by Antelope Reservoir, Wild Horse Reservoir, and numerous small reservoirs.
irrigation.
AVERAGE DISCHARGE.--22 years (water years 1930-511, 851 ft3/s, 616,100 acre-ft/yr.
EXTREMES FOR PERIOD OF RECOR[l.--Maximum discharge, 16,000 ft3/s Mar. 20, 1932, Apr. 19, 1936; maximum gage height, 12.95 ft Mar. 20,
1932; minimum discharge, 99 ft3/s Dec.
19a8, gage height, 3.45 ft.
18,
STATISTICAL SUt11IARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1932-51
1931-51
STANDARD
MONTH
MINIMUM
MAXIMUM
(CFS)
ICFS)
IIEAN
(CFSI
DEVIAlION
(CFS)
COEFFI- PERCENT
CIENT OF
OF
VARIANNuAL
ATION
PERIOD
149
159
161
174
197
TIVE
RUNOFF
JUNE
171
137
JULY
115
AUGUST
116
SEPTEMBER
132
ANNUAL
212
1529
FEBRUARY
336
384
MARCH
APRIL
MAY
.19
.29
.63
.96
1.00
.65
.58
.64
.66
.35
200
252
335
389
889
38
73
211
1841
1195
3507
2050
1657
861
1065
566
261
91
180
177
39
33
.21
.18
875
372
.43
289
450
959
1885
3554
4052
7309
4000
2270
482
238
223
NOVEMBER
DECEMBER
JANUARY
375
889
1.9
2.4
3.2
3.7
8.4
17.5
164
168
173
60
90
15.7
181
190
120
183
8.2
2.5
214
8O
4310
50
7610
205
12800
25
50
105
45
25
PERIOD
16600
100
2%
1%
118
119
120
109
109
109
110
112
117
122
128
142
121
124
128
134
141
155
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
SECU-
100
IS
TIVE
2
5
DAYSI
50%
205
10%
7570
6440
5330
4500
3770
2970
2500
12100
10500
14400
12800
11500
25
45
10
50
25
100
1%
21400
1
WEIGHTED SKEW =
50
5
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1931-51
ICON10
20
100
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
5
130
132
133
135
138
143
149
157
174
10
10%
1.7
1.7
DISCHARGE,
2
5
20
161
30
33.2
2
50
155
158
1
3
7
14
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1931-51
1.25
EXCEEDANCE PROBABILITY. IN PERCENT
(CONSECUDAYS)
OCTOBER
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NON-
-.308
3
7
15
30
60
90
9090
7760
6210
4600
3780
9820
7560
5380
4380
16700
15100
14200
12200
8950
6080
4890
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1931-51
DISCHARGE,
5%
3720
10%
2460
15%
1750
20%
1230
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
255
797
306
541
40%
335
50%
264
60%
230
70%
206
75%
196
80%
185
85%
172
90%
160
95%
138
35
OWYHEE RIVER BASIN
13183000
OWYI-IEE RIVER BELOI! OVJYHEE DAM, OR
LOCATION.--Lat 4Y39'17', long 117°1516", in SE sec.18, 1.22 S., R.45 F., Malheur County, Hydrologic Unit 17050110, on left bank
0.8 mi downstream from Owyhee Dan, 20 ni southwest of Hyena, and at mile 27.3.
DRAINAGE AREA.--l1,160mi2, approximately.
PERIOD OF RECORD.--February 1929 to September 1982.
GAGE.--Water-stage recorder.
Reclamation).
Datum of gage is 2,343.67 ft National Geodetic Vertical Datum of 1929 (levels by Bureau of
REMARKS.--Flow regulated since October 1932 by Lake Owyhee, and by many smaller reservoirs. Diversion of 429,100 acre-ft from Lake
Owyhee during the year for irrigation of lands below station and outside the basin. Many smaller diversions above Lake Owyhee for
Irrigation above station.
COOPERATION.--Watar-stage recorder inspected by irrigation district employees.
AVERAGE DISCHARGE.--50 years (water years 1933-82), 356 ft3/s, 257,900 acre-ft/yr. not adjusted for storage or diversion.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 22,900 ft3/s Apr. 15, 1952, gage height, 15.70 ft; no flow for part of Aug. 8, 9,
1932, when temporary diversion tunnel at Owyhee Dam was closed.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
MEAN
(CFS)
(CFS)
(CFS)
STANDARD
DEVIATION
ICFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1934-82
1933-82
PERCENT
COEFFI-
dENT OF
(CONSECUTIVE
OF
VARIATION
PERIOD
ANNUAL
RUNOFF
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
2.8
1.0
1.7
1.5
1.8
2.0
28
40
46
44
22
8.0
22
112
196
8.6
5.4
2751
4468
7799
12560
4864
1413
29
27
36
51
103
356
370
826
1620
725
269
618
160
137
312
248
1610
7.0
458
893
1496
2296
1035
320
85
60
48
112
287
.81
.8
3.17
1.29
4.09
.2
.1
1.81
14
30
60
90
37.8
1.42
1.43
1.19
120
183
16.9
6.3
3.7
3.2
2.4
.53
.44
.46
2
5
20%
10
10%
25
4%
50
2%
10
20
50
100
10%
5%
2%
1%
1.6
2.1
2.1
2.1
2.1
1.4
1.4
1.4
1.4
1.5
1.7
1.8
2.2
4.0
2.0
2.9
1.7
1.7
1.7
1.8
2.2
2.2
2.4
2.5
2.6
5.9
2.0
1.0
1.0
1.0
1.0
1.1
1.2
1.2
1.2
1.2
1.1
1.5
1.4
1.5
1.7
1.6
1.6
1.8
2.0
100
1.04
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1933-82
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
5
20%
13
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
1.25
80%
2
50%
3.2
3.3
3.3
3.4
3.5
3.5
3.8
4.0
1
3
7
2.6
6.7
19.3
3.11
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
PERIOD
(CONSECUTIVE
DAYS)
100
1%
1
WEIGHTED SKEW =
3
7
15
30
60
90
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
10
25
10%
4%
50
2%
100
20%
1290
1220
1110
979
793
617
523
6060
5670
5070
4350
3290
2320
1810
13400
12500
11100
30700
28800
25500
21200
15100
9780
6990
52200
49100
43300
35800
25100
15800
11000
83800
78900
69700
57200
39600
24400
16500
5
9400
6890
4650
3480
1%
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1933-82
DISCHARGE.
5%
2090
10%
428
15%
220
20%
194
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
168
30%
148
40%
104
50%
57
60%
8.3
70%
5.2
75%
4.2
80%
3.6
85%
3.2
90%
2.8
95%
2.3
36
OWYHEE RIVER BASIN
OWYHEE RIVER AT OWYHEE, OR
13184000
LOCATION.--Lat 43'46'57", long 1i7O3'3O", ii, SESE sec.35, 1.20 S., R.46 E., Maiheur County, Hydrologic Unit 17050110, on left bank
0.3 ml upstream from State Highway 201 bridge, 0.9 ml southwest of Owyhee, and at mile 3.1.
DRAINAGE AREA.--11,300 mi2, approximately.
PERIOD OF RECORD.--l-larch 1890 to June 1891, February to June 1892, February to July, October to December 1893, January 1895 to May
Monthly discharge only for some periods
1897, August 1903 to September 1916, May 1920 to July 1929, July 1979 to September 1982.
published in WSP 1317. Published as 'at Rigsby", 1890-93; "at Nyssa", 1985-96; and as "at Owyhee" in WSP 370. Records for
September, October 1903, May to October 1904, larch, April 1905, published in WSP 135 in conjunction with records for Owyhee River
near Owyhee and in WSP 370, have been found in error and should not be used.
GAGE.--Water-stage recorder.
Altitude 0f gage is 2,190 ft. frmn topographic map.
REMARKS.--Flow regulated since October 1932 by Lake Owyhee, and smaller reservoirs.
Diversions from Lake Owyhee for irrigation of
lands above station and outside the basin. Many smaller diversions above Lake Owyhee for irrigation.
AVERAGE DISCHARGE.--2O years (water years 1896, 1904-16, 1922-27), 1,048 ft3/s, 759,300 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 29,000 ft3/s Mar. 2, 1910, gage height, 12.9 ft site end datum then in use, from
rating curve extended above 14,000 ft3/s; rio flow July 7, 19, Aug. 14-16, 1924, July 5, 6, 1926. Maximum discharge recorded since
construction of Owyhee Dam in 1932. 7,790 ft3/s Feb. 23, 1982, gage height, 11.91 ft.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
MEAN
(CFS)
STANDARD
DEVIATION
ICFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD i9O5-27
1896-28
COEFFI-
PERIOD
PERCENT
dENT OF
(CONSECUTIVE
OF
VARIATION
ANNUAL
RUNOFF
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARy
MARCH
APRIL
MAY
32
70
i35
141
247
487
616
114
JUNE
5.6
3.2
2.5
2.5
JULY
AUGUST
SEPTEMBER
ANNUAL
301
i62
86
362
864
4740
5559
12460
173
278
704
1416
42
80
.49
.46
.57
159
1039
1358
2950
1942
1625
170
174
130
29
38
141
37
38
.96
.97
.57
.75
.78
1.08
1.28
.99
1828
1014
498
.49
7255
6075
2636
498
3053
3425
2159
980
76i
1.4
3
2.2
7
5.1
1.6
1.6
1.8
14
6.0
7.6
2.2
3.8
5.6
11.4
30
60
90
24.5
27.5
17.3
5570
2
5
20%
9410
15800
10
25
(0%
4%
20700
27600
50
2%
.7
.7
.5
1.1
1.2
.8
.6
.6
39
19
13
92
54
39
.5
.8
2.2
2.8
4.6
9.1
29
1.8
2.0
3.2
5.9
2i
.3
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1896-27
IN
PERIOD
(CONSECUTIVE
DAYS)
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS. AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
10
25
50
100
50%
20%
10%
4%
2%
1%
9030
7700
6570
5310
4190
3250
2800
14500
12500
10600
8450
7010
5540
4620
18200
15700
13000
10400
8870
7050
5810
23000
19600
15900
12600
11100
8880
7260
26600
22400
17800
14100
12800
10200
8280
33200
1
WEIGHTED SKEW =
1%
1.0
1.0
2.8
4.0
6.3
9.4
20
100
50
2%
1.0
.2
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
50%
10%
59
13
120
183
7.9
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1896-27
1.25
80%
5
20%
1
20
5%
10
2
50%
3.8
4.0
.7
1.48
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS. AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
-.035
3
7
15
30
60
90
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1896-27
DISCHARGE,
5%
5010
10%
3240
15%
2110
20%
1450
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
1020
30%
726
40%
402
50%
257
60%
171
70%
104
75%
80%
85%
90%
69
43
25
11
95%
5.6
37
MALHEUR RIVER BASIN
13214000
MALHEUR RIVER NEAR DREWSEY, OR
LOCATION.--Lat 43°47'OS", long 118°19'50", In NEjSE, sec.31, 1.20 S., R.36 E., Harney County, Hydrologic Unit 17050116, on left bank
300 ft downstream frm bridge on U.S. Highway 20, 0.5 ml downstream from Cottonwood Creek, 3.0 ml southeast of Drewsey, and at
mile 129.0.
DRAINAGE AREA.--910 mi2, approximately.
T
PERIOD OF RECORD.--June 1920 to September 1921, November, December 1921, March, April 1922, April to September 1923, June 1)26
March to September 1914 at site 13 ml (21 kml
September 1982. Monthly discharge only for some periods, published in WSP 1317.
upstream; records not equivalent owing to inflow from several creeks.
GAGE.--Water-stage recorder. Datum of gage is 3,479.13 ft National Geodetic Vertical Datum of 1929. Prior to Apr. 27, 1923,
Apr. 27, 1923, to June 6, 1939,
water-stage recorder or nonrecording gage at site 0.5 ml downstream at different datum.
water-stage recorder at site 7 mi downstream at different datum.
Diversions for irrigation above station.
REMARKS.--Sl Ight regulation by small reservoirs above station.
AVERAGE DISCHARGE.--56 years (water years 1927-82). 184 ft3/, 133,300 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 12,000 ft3/s Dec. 23, 1964, gage height, 13.50 ft, from rating curve extended
above 4,500 ft3/s, on basis of contracted-opening measurement at gage height 13.20 ft; no flow at times.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
MEAN
(CFS)
STANDARD
DEVIAlION
(CFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1928-82
1927-82
PERIOD
COEFFI- PERCENT
OF
CIENT OF
ANNUAL
VARIATION
RUNOFF
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
5.1
73
178
38
66
26
9.0
739
104
146
105
174
258
419
653
345
223
273
425
249
5.3
20
20
55
44
18
8.0
1.9
AUGUST
SEPTEMBER
ANNUAL
0.0
0.0
34
817
1124
1314
2290
1136
436
.44
.40
1.01
17
134
100
158
60
59
26
27
12
ii
423
183
98
.53
11
11.7
19.0
29,5
15.6
6.1
1.2
30
60
90
10
120
183
16
33
1020
50%
20%
1980
3850
10%
5440
25
4%
7890
.6
100
1%
3.7
7.7
20
-1.8
4.9
-1.0
3.3
.4
.2
2.0
1.4
14
10
7.1
5.3
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
1927-82
BASED ON PERIOD OF RECORD
PERIOD
100
2%
1%
SECUTIVE
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS. AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
25
4%
50
2%
100
1820
1470
1140
5060
4020
2960
2190
1780
1390
5970
4660
3350
2420
6860
5280
3700
2610
2160
932
1130
10
2
5
50%
20%
10%
1530
1300
1070
880
707
552
467
2870
2380
1870
1470
3830
3110
2370
1%
12500
1
WEIGHTED SKEW =
50
2%
100
50
10000
5%
LOW-FLOW STATISTICS UNCERTAIN DUE TO EXCESSIVE
ZERO EVENTS.
NOTE:
.4
(CON10
20
10%
7
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
5
10
14
DISCHARGE,
2
5
20%
3
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1927-82
1.25
80%
2
50%
1
3.0
4.7
6.6
1.19
.86
.65
.65
.72
.75
1.05
1.12
.89
9.5
1.7
DISCHARGE. IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.038
3
7
15
30
60
90
1180
912
756
1990
1560
1270
1710
1380
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1927-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
789
10%
508
15%
358
20%
259
25%
189
30%
142
40%
50%
60%
70%
75%
80%
85%
90
67
50
32
24
17
11
90%
6.0
95%
2.7
MALHEUR RIVER BASIN
38
MALHEUR RIVER BELOW WARMSPRINGS RESERVOIR, NEAR RIVERSIDE, OR
13215000
sec.17, T.23 S., R.37 E. , Maiheur County, Hydrologic
Unit 17050116, on left bank 0.9 ml downstream from Warmsprings Dam, 3.0 ni upstream from South Fork, 4.0 si northwest of
Riverside, and at mile 113.0.
LOCATION.--Lat 4334'29", long 1l812'31", on line between NWSW and SWNW
DRAINAGE AREA.--1,I00 m12, approximately.
PERIOD OF RECORD.--January 1906 to March 1907 and December 1908 Igage heights oniy1, January 1909 to September 1910, December 1914 to
Figures of discharge
July 1917, March 1919 to September 1082. Monthly discharge only for some per iods, published in dSP 1317.
for January 1906 to March 1907, publ shed in WSP 272 and 370, have been found to be unreliable and should not be used. Published
as "Middle Fork of Maiheur River at RIverside" 1906-7; as "Middle Fork of Mal heur River above South Fork, at Riverside" 1909-10;
as "Malheur River above South Fork, at Riverside" in WSP 370, 1906-10; and as "Maihear River at Warmsprings reservoir site, near
Riverside" 1914-17.
GAGE.--Water-stage recorder and concrete control.
changes prior to Sept. 29, 1949.
Altitude of gage is 3,305 ft, by barometer.
See WSP 1317 or 1737 for history of
Diversions for irrigation above station.
REMARKS.--Flow completely regulated since November 1919 by Warmsprings Reservoir.
AVERAGE DISCHARGE.--63 years (water years 1920-82), 180 ft'/s, 130,400 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge observed, 7,200 ft'/s Mar.
use, from rating curve extended above 820 ft/s; no flow at times.
1910, gage height, 10.7 ft, site and datum then in
1,
STATIST I CAL SUMMAR I ES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1921-82
1920-82
STAN-
MONTH
MINIMUM
MAXIMUM
ICFS)
(CFSI
DARD
DEVIATION
MEAN
(CFSI
ICFS)
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
PER 100
(CONSECIJT I VE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
0.0
0.0
0.0
0.0
0.0
0.0
0.0
31
92
145
5.7
.1
47
138
20
34
1.07
1.5
1.0
2.7
2.72
.7
1.2
57
107
138
0.0
0.0
7.32
4.50
3.33
354
219
99
1.26
.52
.30
31
8.5
452
749
7.8
24
42
741
1.83
1534
1162
558
677
575
394
281
430
355
205
117
140
110
.27
.39
.54
397
178
71
.40
423
331
5
10
20%
10%
25
4%
50
2%
10
10%
20
5%
100
50
2%
1%
7
14
30
60
90
1.1
1.9
13.2
19.8
15.5
20.2
16.7
9.6
120
183
LOW-FLOW STATISTICS UNCERTAIN DUE TO EXCESSIVE
ZERO EVENTS
NOTE:
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1920-82
IN
PERIOD
ICON-
2
50%
5
20%
1
.4
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
2
50%
3
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
SECIJ-
100
T I VE
1%
DAYS)
1
WEIGHTED SKEW =
3
7
15
30
60
90
2
5
10
25
50%
20%
10%
4%
677
669
648
604
550
1110
1090
1050
1520
1480
1410
1240
1030
2190
2120
2000
793
682
945
784
943
815
672
595
491
451
1720
1360
50
2%
100
2840
2740
2570
2160
3640
3490
3260
2690
1640
1060
1970
1170
855
922
1%
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1920-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
582
10%
511
15%
450
20%
389
25%
341
30%
294
40%
160
50%
3.3
60%
l.T
70%
.5
75%
.2
80%
.1
85%
.1
90%
95%
0.0
IIALHEUR RIVER BASIN
NORTH FORK MALHEUR RIVER ABOVE BEULAH RESERVOIR, NEAR BELILAH, OR
13216500
LOCATION.--Lat 4357'01", long 1l81O'28', in NWiNE sec.4, 1.19 S., R.37 E., Malheur County. Hydrologic Jolt 17050116, on left bank
500 ft upstream fran Beulah Reservoir, 2.5 ml upstream from Warm Springs Creek, 3.5 ml northwest of Beulah, and at mile 18.0.
DRAINAGE AREA.--355 mi2.
PubI ished
PERIOD OF RECORD.--January to September 1914 (publ shed as "at Scott's Ranch, near Beulah") , June 1936 to September 1982.
as "above Agency Valley Reservoir, sear Beulah", June 1936 to September 1968.
to Sept. 30, 1914,
Datum of gage is 3,349.4 ft National Geodetic Vertical Datum of 1929. Jan.
nonrecording gage and June 10, 1936, to Oct. 14, 1958, water-stage recorder at site 0.5 ml upstream at different datums. Oct. 15,
1958, to Oct. 8, 1975. water-stage recorder at present site at datum 1.6 ft higher.
GAGE.--Water-stage recorder.
REMARKS.--No regulation.
1
Diversions for irrigation above station.
AVERAGE DISCHARGE.--46 years (water years 1937-82) ,
132 ft3/s, 95,630 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3,970 ft3/s Dec. 23, 1964, gage height, 9.90 ft, present datum, from floodmark,
from rating curve extended above 1,300 ft3/s, on basis of slope-area measurement of peak flow; maximum gage height, 11.0 ft,
present datum, sometime during period Dec. 17-23, 1964 licejam); minimum discharge, 8.5 ft/s Dec. 13, 1967, result of freezeup.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1938-82
1937-82
STANDARD
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
32
37
38
32
51
58
111
MARCH
APRIL
MAY
92
JUNE
JULY
55
34
AUGUST
SEPTEMBER
24
30
ANNUAL
60
MAXIMUM
(CFS)
lION
dENT OF
VARI-
(CFS)
ICES)
ATION
7.8
51
66
98
346
280
518
451
906
726
397
373
319
190
74
67
46
46
46
56
85
97
189
157
89
29
167
74
272
11
8.3
.37
49
132
OF
ANNUAL
RUNOFF
2
5
10
20
50
100
DAYS)
50%
20%
10%
5%
2%
1%
30
32
25
26
29
22
23
26
28
20
18
18
16
17
18
21
1
3.6
3
7
4,4
4.9
7.5
35
37
14
30
23.4
60
90
20.1
10.5
120
183
12.4
575
904
5
20%
1440
10
25
50
100
10%
4%
2%
1%
1850
2430
2910
PERIOD
ICONSECU-
52
46
31
31
34
36
38
42
41
33
35
40
24
26
28
30
35
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
14 PERCENT
EXCEEDANCE PROBABILITY,
TIVE
2
DAYSI
50%
5
20%
10
25
50
100
10%
4%
2%
1%
1050
1360
1170
18)0
2190
988
839
732
1500
1200
1010
891
1750
1360
1130
1010
601
508
730
610
824
683
2610
2020
1500
1240
1120
917
755
3420
661
601
543
1
WEIGHTED SKEW =
34
37
39
20
23
26
28
30
32
37
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1937-82
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
40
44
46
48
23
26
29
100
DISCHARGE,
1.25
31
21
4.2
2.9
2.9
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1937-82
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
TIVE
3.2
.15
.18
.67
.71
.71
.49
.51
.49
.53
.43
.24
.18
10
57
69
78
120
198
PERIOD
(CONSECU-
PERCENT
MEAN
DEVIAMINIMUM
(CFS)
COEFFI-
.110
3
7
341
813
698
604
498
294
424
475
408
15
30
60
90
934
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1937-82
DISCHARGE,
5%
457
10%
325
15%
247
20%
191
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
151
30%
120
40%
50%
60%
70%
75%
80%
85%
90%
95%
79
64
56
51
48
46
43
40
36
MALHEUR RIVER BASIN
40
13217500
NORTH FORI( MALHEUR RIVER AT BEULAH, OR
LOCATION.--Lat 4354'28", long ll8O9'O8", in NWNE, sec.22, T.19 S., R.37 E., Melheur County, Hydrologic Unit 17050116, on left bank
at Beulah, 0.3 ml downstream from Agency Valley Dam, 12 ml northwest of Juntura, and at mile 14.5.
DRAINAGE AREA.--440 ui2, approximately.
Published as "near Beulah" June 1926 to September 1935.
PERIOD OF RECORD.--June 1926 to September 1982.
Datum of gage is 3,261.20 ft Mational Geodetic Vertical Datum of 1929. Prior to Apr. 25, 1926.
water-stage recorder at site mi downstream at different datum. Apr. 25, 1936, to Sept. 30, 1949, nonrecording gage at site 20
ft downstream at datum 1.0 ft higher. Oct. 1, 1949, to June 30. 1964. at present site at datum 1.0 ft higher.
GAGE.--Water-stage recorder.
1
REMARKS.--Flow regulated since 1935 by Beulab Reservoir.
Diversions for irrigation above station.
AVERAGE DISCHARGE.--47 years (water years 1936-82>, 142 ft3/s, 102,900 acre-ft/yr.
1942, gage height, 9.4 ft. present datum, from floodmark,
caused by fai lure of gates at Agency Val lay Dam, from rating curve extended above 1,100 ft3/s on basis of computation of peak flow
over dam; no flow at times.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 7,000 ft3/s May 7,
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1937-82
1936-82
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
STANDARD
DEVIAMINIMUM
ICFS>
HINOi
.1
OCTOBER
0.0
0.0
0.0
0.0
0.0
2.3
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MAXIMUM
(CFS)
MEAN
TION
ICFS)
(CFS)
134
36
63
287
478
518
36
856
793
289
120
54
58
43
32
510
402
399
341
55
301
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
5.1
9.6
2.3
7.0
42
98
25
55
113
230
160
351
279
141
SECU-
TIVE
2
5
10
20
50
100
DAYS)
50%
20%
10%
5%
2%
1%
--
--
--
.89
2.1
.1
3
.1
7
14
95
82
.46
.38
.29
.43
.56
55
.39
106
83
282
223
148
(CON-
RUNOFF
4.05
4.27
6.03
3.92
2.06
.80
32
1.3
PERIOD
1
.4
1.5
30
60
90
120
183
3.2
17.0
20.7
16.4
16.6
13.1
NOTE:
80%
5
50%
20%
.7
3
2
ZERO EVENTS
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1936-82
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
1.3
LOW-FLOW STATISTICS UNCERTAIN DUE TO EXCESSIVE
8.7
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
1.25
2.4
7.7
10
25
50
100
10%
4%
2%
1%
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
DISCHARGE,
PERIOD
(CONSECU-
IN PERCENT
TIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
561
974
919
2060
2730
2260
811
1370
1240
1040
3590
2840
2010
700
608
510
455
868
742
607
529
1
WEIGHTED SKEW =
EXCEEDANCE PROBABILITY,
3
7
15
552
522
475
30
124
368
336
60
90
1770
1390
1100
1680
1300
1070
924
736
618
1500
1220
936
742
834
681
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1936-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
486
10%
378
15%
340
20%
302
25%
P9Z
30%
L
40%
50%
60%
1.3
70%
.5
75%
.
85%
80%
z
z.
90%
.1
95%
.1
41
MALHEUR RIVER BASIN
13220000
MALHEUR RIVER AT LITTLE VALLEY, NEAR HOPE, OR
LOCATION.--Lat 43°53'58', long 117°30'25', in SESE sec.24, 1.19 S., R.42 E., Maiheur County, Hydrologic Unit 17050117, on right
bank 500 ft downstream from highway bridge at Little Valley, 8 ml southwest of Hope, 14 ni southwest of Vale, and at mile 45.6.
DRAINAGE AREA.--3,010 mi2, approximately.
PERIOD OF RECORD.--April 1949 to September 1979.
Datum of gage is 2,424.03 ft National Geodetic Vertical Datum of 1929.
GAGE.--Water-stage recorder.
Since 1930, Vale-Oregon Canal has diverted flow above station at
REMARKS.--Flow regulated by Warmsprings and Beulah Reservoirs.
Many small diversions for irrigation
Narnorf in sec.31, 1.20 S., R.41 E., for supplying Bully Creek Reservoir and for irrigation.
above station.
AVERAGE DISCHARGE.--30 years, 192 ft3/s, 139,100 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 12,300 ft3/s Feb. 24, 1957, gage height, 11.5 ft, from floodmark, from rating
curve extended above 5,500 ft3/s on basis of slope-area measurement of peak flow; minimum, 1.6 ft3/s Dec. 21, 1977, result of
free zeup.
EXTREMES OUTSIDE PERIOD OF RECORD.--The two greatest floods occurred March 1894 and March 1910, on basis of records for former
station near Namorf.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
MEAN
(CFS)
(CFS>
ICES)
STANDARD
DEVIATION
ICES)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
1951-79
BASED ON PERIOD OF RECORD
1950-79
PERIOD
(CONSECUlIVE
COEFFI- PERCENT
CIENT OF
OF
ANNUAL
VARIATION
RUNOFF
2
5
10
20
50
100
50%
20%
10%
5%
2%
1%
1
21
14
II
3
22
15
12
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
93
72
18
14
10
27
39
ii
32
108
101
50
42
58
407
1119
887
13
269
268
449
347
68
250
264
274
570
337
168
1053
2143
1478
767
.33
.31
1.17
17
.98
1.02
1.27
195
116
218
40
22
297
225
159
156
97
47
36
61
476
192
115
.60
34
30
60
8.4
9.4
6.7
4.2
41
120
183
45
57
2
5
20%
10
10%
25
4%
50
2%
9.3
9.5
16
18
12
10
14
11
21
16
26
30
20
13
15
34
29
20
24
48
39
33
25
7.4
7.5
7.9
8.7
9.1
11
16
20
26
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD
1950-79
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
38
90
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
1.25
80%
23
27
33
7
14
2.5
7.3
11.6
11.6
19.4
15.0
1.49
.97
.59
.18
.30
.37
125
2.1
1.8
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
PERIOD
(CON-
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
SECIJ-
1%
TIVE
2
5
10
25
DAYS)
50%
20%
10%
4%
3
1590
1270
7
15
934
653
3810
2980
2090
5830
4550
3140
2150
30
60
90
495
8970
7020
4810
3380
2430
1
WEIGHTED SKEW =
375
318
1430
1030
752
601
1550
1120
869
1770
1330
50
2%
100
1%
11700
9200
6300
4520
3280
2410
1770
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1950-79
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
0%
308
15%
247
20%
213
25%
193
30%
175
40%
141
50%
101
60%
70%
75%
80%
85%
90%
95%
70
54
48
44
39
33
21
42
MALHELIR RIVER BASIN
13220500
MALHEUR RIVER NEAR HOPE, OR
LOCATION.--Lat 4356'40", long 117285O", in SW sec.5, T.19 S., R.43 E., Maiheur County, Hydrologic Unit 17050117, 0.5 ml upstream
from intake of Vines Canal , 5.5 ni west of Hope, and 12 mi west of Vale.
DRAINAGE AREA.--3,030 mi1, approximately.
PERIOD OF RECORD.--March 1922 to September 1949.
Altitude of gage is 2,370 7t (from topogruphic napl
GAGE.--Water-stage recorder.
REMARKS.--Since March 1930, Vale-Oregon Canal has d(vrted at Manorf for irrigation above and below station. Many small diversions
for Irrigation above station. Flow regulated by Warmsprings Reservoir and, since December 1935, by Agency Valley Reservoir.
AVERAGE DISCHARGE.--19 years Iwater years 1930-491, 187 ftu/s.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 8,100 ft3/s Feb. 5, 1925, gage height, 8.1 ft. from rating curve extended above
2.800 ft3/s; minimum, 3.5 ft/s Sept. 2. 1919.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1932-49
1931-49
STAt)DARD
DEVIAMINIMUM
(CFS)
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
MAXIMUM
MEAN
ICFS)
(CR5)
9.5
12
15
20
30
23
54
156
105
90
48
53
75
102
235
385
496
271
89
95
329
722
768
1493
2040
652
242
AUGUST
SEPTEMBER
18
264
196
10
158
167
186
139
102
ANNUAL
72
520
188
JULY
TION
(CFSI
COEFFI-
dENT OF
VARI-
OF
ANNUAL
RUNOFF
ATION
41
50
46
47
.44
.38
.97
1.50
.87
.99
1.14
.44
.24
.27
.33
.46
114
.61
21
20
72
153
205
382
565
120
PERIOD
ICONSECU-
PERCENT
TIVE
2
DAYS I
50%
2.1
1
2.3
3.3
4.5
3
7
14
10.4
17.0
22.0
12.0
30
60
90
120
183
7.4
8.2
6.2
4.5
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
80%
50
100
5%
2%
1%
22
24
25
28
33
14
15
15
17
11
19
42
45
52
69
25
28
32
45
13
18
PERIOD
8.7
8.7
8.8
9.2
11
11
12
10.0
24
13
15
18
35
28
20
DISCHARGE. IN CFS. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
ICON5
20%
20
10%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1931-49
DISCHARGE,
2
50%
10
100
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
1.25
5
20
10
25
50
100
10%
4%
2%
1%
SECU-
TIVE
DAYS)
1370
1
030
746
576
443
359
317
3
WEIGHTED SKEW =
2
50%
7
15
30
60
90
10
25
50
100
20%
10%
4%
2%
1%
2910
2050
1440
1150
897
709
593
4150
2860
2030
1710
1360
1060
863
5910
4020
2940
2660
2190
1680
1330
5
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1931-49
IN CFS.
5%
617
10%
337
15%
265
20%
226
25%
201
WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
30%
178
40%
141
50%
104
60%
70%
75%
80%
85%
90%
95%
77
61
54
48
40
33
21
43
MALHEUR RIVER BASIN
13225500 BULLY CREEK AT WARMSPRINGS, NEAR VALE, OR
LOCATION.--Lat 44°Ol'lO", long 117°27'35", in SENW sec.9, 1.18 S., R.43 E., Malheur County, Hydrologic Unit 17050118, on left bank
400 ft downstream from Cottonwood Creek, 4.7 ml upstream from Bully Creek Dam, 11.4 ml northwest of Vale, and at mile 17.2.
DRAINAGE AREA.--539 mia.
PERIOD OF RECORD.--September- 1903 to February 1904, February 1905 to 1.Iarch 1907, February 1910, January 1911 to May 1917, March 1922
to June 1923, October 1963 to September 1982. Monthly discharge only for some periods. publ ished in WSP 1317. Published as 'near
Vale" 1903, 1907, and as "above Vale" 1904-6, 1910.
GAGE.--Water-stage recorder. Datum of gage is 2,527.21 ft National Geodetic Vertical Datum of 1929 lBureau of Reclamation bench
mark). Prior to July 1, 1923, nonrecording gages within 0.5 mi downstream at different datums.
REMARKS.-No regulation.
Many diversions for irrigation above station.
AVERAGE DISCHARGE.--25 years Iwater years 1906, 1912-16, 1964-82)
46.0 ft3/s. 33,330 acre-ft/yr.
,
EXTREMES FOR PERIOD OF RECORD.--I-laximurn discharge, 12,800 ft3/s Dec. 22, 1964, gage height, 8.68 ft, from rating curve extended above
200 ft3/s on basis of slope-area measurement of peak flow; no flow at times.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
1964-82
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1965-82
STANDARD
DEVIAMONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
NOVEMBER
DECEMBER
.6
2.9
3.6
JANUARY
FEBRUARY
6.6
7.7
MARCH
.8
.5
.9
1.9
OCTOBER
APRIL
MAY
JUNE
(CFS)
4.1
12
331
6.7
330
708
340
367
105
70
.3
.3
51
SEPTEMBER
.1
17
3.4
138
ANNUAL
lION
(CFS)
11
AUGUST
JULY
MEAN
77
106
164
14
16
3.6
45
5
50%
20%
90
.5
.5
.6
.7
1.0
1.5
1.9
120
183
2.6
4.0
1
7
14
30
60
2.6
922
2
5
50%
20%
2270
5310
10
25
50
100
10%
4%
2)
18
8110
100
2%
1%
.2
.2
.2
.2
.3
.5
.6
.9
1.7
.2
.3
.3
.3
.4
.7
1.0
1.4
2.3
.1
.2
.2
.2
.2
.3
.4
.6
1.2
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1964-82
PERIOD
ICONSECU-
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
TIVE
2
5
10
25
50
100
DAYSI
50%
20%
10%
4%
2%
1%
1080
2230
1520
1060
669
2960
1950
1320
827
540
3750
2370
1550
964
647
476
90%
95%
12500
1
WEIGHTED SKEW =
50
5%
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
20
10%
.4
.6
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1964-82
80%
10
1.4
.75
34
2
DAYS)
3
16.0
24.8
23.2
17.8
4.8
.78
1.14
1.23
1.16
1.77
.79
1.19
1.9
lIVE
.8
1.2
6.5
1.21
14
PERIOD
(CONSECU-
RUNOFF
.55
.36
2.16
1.22
98
110
32
7.9
2.4
3.0
6.7
ATION
2.3
2.4
35
87
135
126
97
26
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE,
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
-.161
762
540
3
7
15
350
223
154
124
30
60
90
427
300
244
387
319
399
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1964-82
DISCHARGE,
5%
204
10%
107
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
15%
20%
25%
30%
40%
64
42
26
18
Ii
50%
7.3
608
5.1
708
3.6
75%
2.9
80%
2.3
85%
1.7
1.1
.6
MALHEUR RIVER BASIN
44
BULLY CREEK NEAR VALE, OR
13227000
LOCATION.--Lat 43'57'30", long 117°20'30", In SW! sec.33, T.18 S., R.44 E., Nolheur County, Hydrologic Unit 17050118, on right bank 5
mi southwest of Vale and 7 mi upstream from mouth.
DRAINAGE AREA.--570 mia, approximately.
Monthly
rch, April 1936, june 1937 to September 1962.
PERIOD OF RECORD.--May 1933 to September 1934, November 1934, Norch 1935,
discharge only for some periods, published in WSP 1317.
Altitude of gage Is 2,313 ft (by levels to reference point furnished by Union
GAGE.--Water-stage recorder and concrete control.
Nor. 15,
Pacific Railroad). Prior to Mar. 15, 1937, water-stage recorder or staff gage at site 2 ml upstream at different datum.
1937, to Jan. 1, 1940, water-stage recorder at present site at datum 0.38 ft higher.
REMARKS.--Occasional fluctuations caused by releases from Vale-Oregon Canal which diverts water from Malbeur RIver for irrigation of
Diversions for irrigation of about 7,000
lands west of Vale; considerable return flow at times enters Bully Creek above station.
acres above station.
AVERAGE DISCHARGE.--26 years (water years 1934, 1938-62), 40.4 ft3/s. 29,250 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 8,980 ft3/s Feb. 24, 1957, gage height, 10.5 ft, from floodmarks, from rating
curve extended above 2,000 ft3/s on basis of slope-area measurement of peak flow; no flow at times.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1939-62
1934-62
STAN-
DARD
DEVIAMONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MEAN
(CFS)
TION
(CFS)
55
166
17
15
27
41
374
519
426
95
142
86
105
1.10
19.5
134
104
29.0
23
18
29
39
AUGUST
SEPTEMBER
3.8
1.0
1.0
1.0
74
207
30
38
32
.94
1.21
.79
ANNUAL
2.3
101
40
54
14
2.0
2.2
2.4
46
12
1.8
1.0
1.1
1.9
MAY
JUNE
JULY
10
8.9
6.1
6.7
7.8
8.8
9.5
90
4.7
120
10
5.3
5.9
1.35
5.9
183
12
7.1
7.1
.47
3.1
15
8.0
7.9
.55
.52
3.0
29
80%
279
50%
20%
843
WEIGHTED SKEW =
2340
10
10%
3850
25
4%
6400
1.5
1.5
1.7
1.8
2.4
2.6
2.9
3.3
3.6
2.0
2.3
2.5
3.0
3.6
4.1
5.0
100
2%
1%
1.1
1.1
1.2
1.2
1.3
1.4
1.6
1.9
2.4
3.1
.72
50
2%
1.9
2.1
50
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1934-62
PERIOD
(CON-
5
10%
2.7
2.9
3.4
3.7
4.3
4.8
4.7
5.3
30
60
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
5
20%
1
20
5%
10
2
50%
3
1
14
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1934-62
1.25
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
17.5
15
15
(CONSECUlIVE
DAYS)
2.9
2.4
3.4
5.6
.73
.75
.88
1.51
1.7
PERIOD
COEFFI- PERCENT
OF
CIENT OF
VARIANNUAL
ATION
RUNOFF
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
SECUTIVE
2
5
10
25
DAYS)
50%
20%
10%
4%
447
1160
327
237
186
136
897
1760
1410
1020
766
543
384
282
2600
2170
50
2%
100
1%
p760
3
- .290
7
15
30
60
90
649
496
97
353
250
75
187
1560
1150
817
576
417
3240
2800
2000
1460
1040
730
524
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1934-62
DISCHARGE,
5%
185
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
10%
15%
20%
25%
30%
40%
50%
60%
82
48
31
25
21
17
15
12
70%
9.7
75%
8.3
80%
7.1
85%
5.5
90%
3.6
95%
2.2
MALEHUR RIVER BASIN
13228000
LOCATION.--Lat 43°5850", long 11P1420', In NW
MALHEUR RIVER AT VALE, OR
sec.29, 1.18 S., R.45 E., Maiheur County, Hydrologic Unit 17050117, at road bridge
at Vale and 0.2 ml downstream from Bully Creek.
DRAINAGE AREA.--3,880 mi2, approximately.
PERIOD OF RECORD.--April 1890 to September 1891, January 1895 to September 1896, June 1903 to September 1906, June 1908 to September
1914.
GAGE.--Staff gage.
datums.
Prior to Mar. 20, 1919, staff or chain gages at different
Altitude of gage is 2,230 ft (from topographic map).
Flow slightly regulated since 1915 by Vale-Oregon
REMARKS.--Many diversions above station for irrigation above and below station.
IrrigatIon Co. dam on Bully Creek.
AVERAGE DISCHARGE.--11 years (water years 1896, 1904-1906, 1909-1914). 541 ft3/s.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 22,800 ft3/s Mar. 2, 1910, gage heIght, 19.5 ft. datum then in use, from
floodmark, from rating curve extended above 3,600 ft3/s; minimum, 4 ft3/s July 19-21, 1895, Aug. 23, 1906.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES 1891-1914
BASED ON PERIOD OF RECORD 1895-1914
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
MINIMUM
MAXIMUM
ICFSI
(CFS)
41
89
72
ANNUAL
(CFS)
144
192
242
87
1715
264
397
2245
511
5698
2319
90
36
38
440
679
978
22
1161
13
517
121
516
8.5
3461
(CFS)
145
139
384
785
1423
1700
790
313
211
AUGUST
SEPTEMBER
MEAN
STANDARD
DEVIATION
19
133
69
54
185
1232
516
PERIOD
COEFFI- PERCENT
CIENT OF
OF
ANNUAL
VARIATION
RUNOFF
.40
.26
.34
41
1.15
(CONSECUlIVE
DAYS)
1.5
1
2.4
2.3
6.3
3
2.0
34
.64
.9
288
.56
3880
2
50%
7500
5
20%
14300
10
10%
19800
25
4%
50
2%
100
1%
90
LESS THAN 10 NON-ZERO EVENTS RECORDED.
NOTE:
1.1
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1891-14
IN
PERIOD
(CONSECU-
100
TIVE
DAYS)
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
25
4%
10
2
5
50%
20%
10%
30
60
90
1880
1460
1210
7950
6040
5050
4300
3350
2490
2070
11200
15
4420
3420
2760
2370
50
100
2%
1%
28100
1
WEIGHTED SKEW =
50
2%
120
183
6.1
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
1.25
20
5%
10
10%
30
60
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1891-14
80%
5
20%
7
23.4
28.0
13.0
1.16
2.05
2
50%
14
12.9
.86
.69
.97
.88
.82
1655
694
304
140
142
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
-.087
3
7
8430
7050
5980
4690
3440
2860
15500
12400
10200
8530
6890
5010
4170
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1891-14
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
2160
10%
1300
15%
933
20%
662
25%
483
30%
365
40%
235
50%
t64
60%
70%
75%
80%
85%
90%
95%
27
98
81
62
43
30
19
46
BURNT RIVER BASIN
13269300
NORTH FORK BURNT RIVER NEAR WHITNEY, OR
LOCATION.--Lat 44'36'0O", long 118'15'(0", in NE sec.23, 1.11 S., R.36 E., Baker County, Hydrologic Unit 17050202, Wal Iowa Whitman
National Forest, on right bank 950 ft upstream
from Petticoat Creek, 1.0 mi downstream from U.S. Bureau of Reclamation damsite,
4.5 ml southeast of Whitney, and 11.5 mi northwest of Unity.
DRAINAGE AREA.11OmiZ, approximately.
PERIOD OF RECORD.--June 1964 to June 1978,
GAGE.--Water-stage recorder.
January 1979 to June 1980, January to June oniy, each year.
Altitude of gage is 4,07.0 ft, from topographic nap.
REMARKS.--Some regulations from irrigation and mining operations upstream.
A transmountain diversion from headwaters of Middle Fork
John Day River delivers as such as 12 ft3/s to North Fork Burnt River above station.
AVERAGE DISCHARGE.--13 years (water years 1965-77), 49.8 ft3/s, 36,080 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge,
1,190 ft3/s Apr. 6, 1971. gage height, 4.31 ft; maximum gage height, 4.95 ft
Jan. 29, 1965 lIce jam); minimum discharge, 0.14 ft3/s Aug. 15,
1977. but may have been less when stage fell below inlets July 19
to Aug. 17, 1966.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
1ONTH
MINIMUM
MAXIMUM
(CFS)
(CFSI
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
1.1
STANDARD
DEVIATION
MEAN
(CFSI
5.2
(CFS)
2.9
7.4
1965-77
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
3.0
26
3.6
51
12
14
.38
.88
1.11
3.9
5.3
8.9
22
9.7
9.2
95
32
1.19
322
414
27
36
99
.97
.87
370
215
153
34
86
133
105
69
34
19
1.0
17
93
.3
8.5
4.8
.4
ANNUAL
6.2
99
1.1
6.6
8.5
2.7
.66
1.00
1.3
.77
27
(CONSECUlIVE
DAYS)
1.2
3
.6
2.0
4.5
5.9
16.5
7
.7
.8
14
30
60
90
20
83
1.0
1.3
1.9
5
20%
10
50
2%
661
1010
1230
100
2%
1%
.2
.3
.2
.3
.4
.3
.4
.5
.3
.4
.5
.7
.2
.2
.3
.4
.2
1.0
1.6
1.2
.5
.9
3.2
2.7
2.2
.3
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1965-77
PERIOD
(CONSECUTIVE
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
10
25
50%
20%
10%
4
546
488
420
346
279
212
162
800
697
887
762
674
547
484
374
289
942
50
2%
100
1%
1490
I
WEIGHTED SKEW =
50
5%
.7
2.5
4.5
DAYS)
409
20
10%
.5
.55
25
4%
10%
10
1.4
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
5
20%
.3
DISCHARGE,
50%
2
50%
.6
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1965-77
1.25
80
DISCHARGE. IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
1
35.9
25.5
5.7
.69
.55
1.6
PERIOD
.5
.62
8.4
2.7
50
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1966-77
-.468
3
7
15
30
60
90
611
500
429
330
253
801
714
575
520
404
316
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1965-77
DISCHARGE,
5
276
10%
158
15%
91
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
20%
25%
30%
40%
60
41
28
15
50%
9.0
60%
6.
70%
4.0
75%
3.3
80%
2.5
85%
1.7
90%
1.3
95%
.7
47
BURNT RIVER BASIN
13270800
SOUTH FORK BURNT RIVER ABOVE BARNEY CREEK, NEAR UNITY, OR
LOCATION.--.Lat 4424'25", long 1l818'0l", in NWSE sec.28, 1.13 S., R.36 E., Baker County, Hydrologic Unit 17050202. Wallowa
WhItman National Forest, on right brik 84 ft upstream from Barney Creek and 5 ml southwest of Unity.
DRAINAGE AREA.--38.5
(2
PERIOD OF RECORD.--ljar-ch 1963 to September 1981.
GAGE.--Water-stage recorder. Datum of gage is 4,341.75 ft National Geodetic Vertical Datum of 1929 (levels by Bureau of
Reclamation). Prior to July 18, 1963, nonrecording gage at site 220 ft upstream at datum 5.47 ft higher, July 18, 1963, to July
18, 1979, at site 215 ft upstream at datum 5.31 ft higher.
REMARXS.--No regulation or diversion above station.
AVERAGE DISCHARGE.--18 years, 27.2 ft3/s, 19,710 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD,--Maximum discharge, 186 ft3/s Apr. 29, 1965, gage heIght, 1.98 ft. site and datum then in use; maximum
gage height. 3.57 ft Jan. 10, 1974 (backwater from icel, silo and datum then in use; minimum discharge, 11 ft3/s Feb. 12, 1978,
but may have been less during period of no gage-height record Nov. 20 to Dec. 5, 1977.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARy
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
19
18
18
86
84
68
32
30
27
ANNUAL
21
39
MEAN
(CFS)
22
22
18
25
27
28
16
29
21
16
31
21
20
23
39
24
36
52
23
21
19
19
STANDARD
DEVIATION
(CFS)
COEFFI-
37
25
23
22
27
.18
6.7
6.6
6.5
6.4
5.5
7.4
15
.42
11.1
19
.36
13
.36
.15
.13
16.0
(1.3
7.7
.10
.11
.13
.13
.14
1
3
7
14
30
49
2
5
20%
74
WEIGHTED SKEW =
110
10
10%
t35
10%
20
5%
16
17
14
15
13
14
12
13
18
19
19
15
14
16
13
17
17
16
17
17
10
50
2%
100
1%
15
20
20
18
19
18
120
21
19
18
18
18
183
21
20
19
18
100
.17
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1964-81
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
5
20%
60
90
DISCHARGE,
1.25
2
50%
18
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1964-81
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
7.0
6.7
.11
4.7
ICONSECUlIVE
DAYS)
OF
ANNUAL
RUNOFF
VARIATION
3.8
3.0
2.5
PERIOD
PERCENT
dENT OF
2.2
2.3
2.8
2.8
3.0
4.5
21
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1965-81
1964-81
25
50
100
4%
2%
1%
PERIOD
(CONSECUTIVE
DAYSI
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
50%
20%
10%
25
4%
(06
102
129
125
116
104
158
153
140
127
89
73
62
106
86
72
10
50
100
2%
1%
95%
166
-.146
1
71
3
68
7
65
15
60
30
SD
90
53
75
46
62
41
53
96
87
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1964-81
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
55
10%
15%
20%
25%
30%
40%
50%
60%
70%
75%
80%
85%
90%
42
34
30
27
26
25
23
22
21
21
20
20
19
8
BURNT RIVER BASIN
48
13273000
BURNT RIVER NEAR HEREFORD, OR
LOCATION.--Lat 443O'14", long 118°1O'35', in SE sec.21, T.12 S., R.37 E., Baker County, Hydrologic Unit 17050202, on left bank
800 ft downstream from Unity Dam, 0.4 mi upstream from Van Cleve ditch, 7 ml west of Hereford, and at mile 63.5.
DRAINAGE AREA.--309 mi2.
Monthly discharge only for some
PERIOD OF RECORO.--March to September 1915, April to September 1916, October 1928 to September 1982.
periods, published in WSP 1317.
Oct. 1, 1943, to Oct. 31, 1966,
GAGE.--Water-stage recorder. Datum of gage is 3,758.19 ft National Geodetic Vertical Datum of 1929.
See WSP 1317 or 1737 for history of changes prior to
water-stage recorder at site 450 ft downstream at datum 1.44 ft lower.
Oct.
1,
1943.
REMARKS.--Flow regulated since 1938 by Unity Reservoir.
Diversions for irrigation above station.
AVERAGE DISCHARGE.--54 years (water years 1929-82), 84.6 ft3/s, 61,290 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,220 ft3/s Apr. 17, 1943, gage height, 5.91 ft. site and datum then in use, from
rating curve extended above 1,300 ft3/s; maximum gage height, 9.07 ft Apr. 8, 1971; no flow at times; minimum discharge before
construction of Unity Dam, 1.6 ft'/s Aug. 31, 1935.
STATISTICAL SUMMARIES (BEFORE THE CONSTRUCTION OF UNITY RESERVOIR)
MONTHLY AND ANNUAL MEAN DISCHARGES
1929-38
STANDARD
COEFFI-
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
1930-38
BASED ON PERIOD OF RECORD
DEVIA- dENT OF
MONTH
MINIMUM
MAXIMUM
(CFS)
(Cr51
MEAN
TION
(CFSI
(CFS)
VARIATION
PERIOD
(CONSECUTIVE
PERCENT
OF
ANNUAL
RUNOFF
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
6.5
5.0
19
12
34
73
58
21
62
169
567
316
70
8.1
6.1
6.1
15
14
24
55
41
19
16
31
3.9
8.7
32
18
29
13
39
99
288
14
.33
.42
.56
.44
.36
40
.41
180
119
95
32
16
.63
.80
.50
47
67
18
11
16
18
43
13
11
.65
1.09
.84
94
60
22
.37
1.7
2.0
4.5
2
5
50%
20%
10
10%
25
4%
50
2%
4.1
441
651
967
10
10%
20
5%
50
100
2%
1%
30
60
90
5.4
13.8
40.1
16.6
120
183
4.4
2.4
2.3
1.8
LESS THAN 10 YEARS OF DATA AVAILABLE FOR
ANALYSIS.
NOTE:
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1929-38
PERIOD
(CONSECUTIVE
100
1%
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
10
2
5
50%
20%
10%
586
1030
25
4%
50
2%
90%
100
1%
1190
3
7
15
498
30
60
90
293
213
882
794
706
586
464
330
161
241
1
WEIGHTED SKEW =
5
20%
1
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
2
50%
3
7
14
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1929-38
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY., IN PERCENT
.061
428
364
964
884
724
569
406
295
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1929-38
DISCHARGE,
5%
281
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
10%
15%
20%
25%
30%
40%
50%
60%
70%
75%
80%
85%
4l
89
67
51
42
32
24
19
15
13
11
10
8.3
95%
5.7
49
BURNT RIVER BASIN
BURNT RIVER NEAR HEREFORD, OR--Continued
13273000
STATISTICAL SUMMARIES (AFTER THE COMPLETION OF UNITY RESERVOIR)
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1940-82
1939-82
STANDARD
DEVIAMONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
.2
OCTOBER
.5
.7
1.7
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
0.0
1.4
.2
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
87
42
60
47
.2
32
MEAN
TION
(CFS)
ICFS)
93
63
66
87
287
379
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
24
16
.88
1.09
18
18
1.01
23
39
94
257
23
27
15
134
148
128
102
107
78
20
29
1.02
1.28
1.00
.67
.47
.37
.19
.19
.38
166
91
36
.39
618
484
326
51
94
173
94
46
200
125
19
PERIOD
(CONSECU-
RUNOFF
TIVE
2
5
DAYS)
50%
20%
2.5
1.4
1.6
2.1
1
1.4
3
1.4
7
1.8
2.1
14
30
3.6
8.6
23.7
18.4
11.5
50
100
5%
2%
1%
.1
.1
.1
0.0
0.0
0.0
0.0
0.0
0.0
.2
.2
.5
.7
.1
.1
.1
.1
1.3
.3
.4
.7
.2
.3
.5
4.7
2.8
1.9
.1
.2
.2
.3
.4
.8
1.3
2.2
7.2
11
9.4
9.9
7.2
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
2
5
10
25
50
100
50%
20%
10%
4%
2%
1%
1940-82
BASED ON PERIOD OF RECORD
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEOANCE PROBABILITY, IN PERCENT
1.25
20
10%
2.3
3.8
10
24
10
.3
.4
.4
.6
.8
1.5
3.3
4.6
6.9
60
90
120
183
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL. IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
PERIOD
(CONSECU-
WEIGHTED SKEW =
DISCHARGE. IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
TIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
1
444
729
932
3
431
400
344
285
227
901
821
696
1200
1160
1040
889
1400
1350
7
706
648
549
446
1600
1540
1380
1190
560
419
343
712
518
419
15
30
60
90
194
341
283
1210
1040
829
592
476
949
666
534
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1940-82
DISCHARGE,
15%
298
93
49
20%
138
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
I2
30%
115
40%
50%
60%
70%
75%
93
70
42
22
12
85%
7.9
5.0
90%
2.9
95%
.4
50
BURNT RIVER BASIN
13274203
BURNT RIVER NEAR BRIDGEPORT, OR
LOCATION.--Lat 44°32'27",
long 11741'1O", in NWNW sec.lO, 1.12 S., R.41 F., Baker County, Hydrologic Unit 17050202, on left bank
0.5 ml downstream from Dark Canyon, 4.6 ml upstream from Deer Creek, 5.0 mi northeast of Bridgeport, and at mile
37.1.
DRAINAGE AREA.--650 mi2, sanroximately.
PERIOD OF RECORD.--October 1q56 to Seotenber 19B0.
GAGE.--Water-stage recorder.
Reclamation).
REMARKS.--FIo
Datum of gage is 3,223.22 ft National Geodetic Vertical Datum of 1929 (levels by Bureau of
regulated since 1938 by Unity Reservoir.
Ilany diversions for irrigation above station.
AVERAGE DISCHARGE.--24 years, 105 ft3/s, 76.070 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Max(rnum
discharge, 1,500 ft3/s Apr. 9, 1971, gage height, 6.40 ft; minimum, 5.2 ft3/s Dec. 5,
STAll STICAL SUtIMARIES
MONTHLY AND ANNUAL (lEAN DISCHARGES
1957-80
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1958-80
STANDARD
DEVIAMONTH
MINIMUM
MAXIMUM
MEAN
ICFS)
lION
(CFSI
(CFS
(CFS)
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
PERIOD
(CONSECU-
lIVE
RUNOFF
DAYS)
ii
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARy
11
77
63
15
14
146
APRIL
17
17
21
MAY
38
JUNE
27
29
26
MARCH
JULY
AUGUST
SEPTEMBER
ANNUAL
65
354
490
797
678
200
45
16
28
31
44
34
.36
.37
.43
.78
10
'3
83
3.6
2.3
2.5
3.5
6.6
311
237
223
.92
.85
.72
168
.71
18.9
117
52
.44
81
71
26
22
25
.32
12
124
107
108
9.3
6.5
6.0
5.6
26
209
105
53
.50
76
114
134
75
10.7
24.8
.29
.37
2
508
5
208
5
20
10
10
3
is
ii
7
12
14
17
18
14
11
30
21
4
60
90
24
26
16
18
19
20
83
29
40
50
100
5S
2%
1%
8.3
9.0
9.9
10
15
22
30
20
6.9
7.6
8.3
10
12
13
14
IS
16
18
16
25
21
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1957-80
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
2
50
1
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS. AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
10
25
50
100
108
4%
2%
1%
PERIOD
(CON-
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
SECU-
TIVE
DAYS)
WEIGHTED SKEW =
2
50
1
533
3
501
7
15
448
387
324
250
208
30
60
90
5
20
988
928
826
703
590
446
365
10
25
50
100
10%
4%
2%
1%
1310
1230
781
1720
1610
1440
1220
1030
584
472
758
605
1100
929
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1957-80
DISCHARGE,
58
363
108
225
15%
167
208
131
IN CFS, WHICH WAS EOUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
258
108
308
40%
50%
608
70%
75%
80%
85%
90%
95%
95
78
63
48
37
32
28
25
22
18
1972.
'L7NT
'R3
71
51
lVER tysi'
9 VER AT HLINT NOTN
LOCATION.--Let 44'?l'30", long 117l5'2'V', in NE sec.l3, T. 12 S., R.24 E., Baker County, Hydrologic Unit 17050202, on right bank
0.5 ml northwest of Huntington and al mile 2.0
DRAINAGE AREA.--1,og3 mi2.
PERIOD OF RECORD.--September 1'1'R
tx1embr-
t
77, '7'cvv
REMARXS,--FIo
l5G, Ju
105c to Septenbvr
,i'ioI
GAGE,--Water-sfaqe recorder.
7tu-' of '..i' i
1932, nOnrecordin9 gage at sire 7Q1 f' Upst
Oct. 1, 1959, to Aug. 20, 1962, crest-stage aaqe.
1952 to September 1387.
I, 10
Oeodetic Vetic-1 Datum a' 1929.
Teat;
to S?pt. 5,
Oct. 1, 195C, to Sept. 30, 1959, water-sOdie recoroer cd
e'ot datum.
regulated since 1938 by Unity Reservoir.
Diversions for Irrigation 3bove station.
AVERAGE DISCHARGE.--25 years, 132 ft3/s, 95,630 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--laximun, dischsr9e, 2,220 ft1's 3cc. 22,
F.b. 3, 1963 lice jam); no flow at tines.
1964, gage height, 5.94 fl; maximum gva
height, 5.87 ft
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL 1!EAN DISCHARGES
UO*TH
MINIMUM
MAXIMUM
MEAN
STANOARD
DEVIATION
ICFS)
ICFS)
ICES)
ICFS)
1Q2°-efl
COEFFI-
IAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1930-80
PERCENT
PERIOD
OF
ICONSECUTIVE
dENT OF
SARIATION
ANNUAL
RUNOFF
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
92
96
0.0
2.9
19
112
20
262
33
35
447
688
21
55
27
.50
52
60
93
145
20
22
55
.39
105
149
295
1069
224
395
8.0
820
270
221
JUNE
JULY
6.1
1.0
121
77
55
ai
AUGUST
SEPTEMBER
0.0
0.0
271
133
106
57
34
122
h3
280
37
ANNUAL
35
3.4
3.3
3.7
5.2
9.1
14.1
.7
.55
.72
.67
.63
.59
.53
t
.5'
14
30
60
90
2
DISCHARGE,
5%
2
10%
3l
155
230
20%
172
9.4
10
12
15
19
23
4.)
4.4
5.4
7.0
8.8
1.7
1.8
12
03
.5
2.3
.5
.7
3.1
1.0
4.0
1.3
6.4
2.6
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1929-80
PERIOD
ICONSECUTIVE
DAYSI
OALY lEAN
DURATION TARLE O
"
107
2
105
50
5
IVE SKEW.
5
2O
20
lO
LONG-DURATION STATISTICS UNCERTAIN DUE TO EXCESS
NOTE:
4.
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
505
10
120
193
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1929-NO
1.25
80%
5
205
29
33
37
44
49
7
17.0
7.6
4.1
3.5
2
NOR
27
1
3
25.0
.82
.64
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
2
10
10%
2N
45
53
25
1310
1190
1010
847
1720
1550
1330
1130
2230
2010
2E10
2340
2060
974
752
624
5
505
20
1
731
3
7
671
573
15
471
30
60
90
394
308
723
259
466
559
1750
1510
1320
1020
I30
1800
1600
1240
1020
844
LOW FOR PERIOD OF RECORD l929-O
IN CES, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF Tl1E
255
133
305
112
408
50%
60%
70%
75%
80%
74
61
51
46
40
:
31
95%
'9
5. I
POWDER RIVER BASIN
52
POWDER RIVER NEAR SUMPTER, OR
13275300
LOCATION.--Lat 44°4O'20", long 117°59'40", in NENE sec.25, 1.10 S., R.38 E., Baker County, Hydrologic Unit 17050203, Wal Iowa
Whitman National Forest, on left bank 1,200 ft downstream from Mason Dam, 1.4 ni upstream from California Gulch, 11.4 mi southeast
of Sumpter, and at mile 123.2.
Prior to Oct.
DRAINAGE AREA.--15S mi2, approximately.
1,
1970, 170 mi2 at cableway, 0.5 ml downstream.
PERIOD OF RECORD.--April 1965 to September 1982.
GAGE.--Water-stage recorder. Datum of gage is 3,898.47 ft National Geodetic Vertical Datum of 1929 (Bureau of Reclamation bench
mark). Prior to July 29, 1965, nonrecording gage at datum 1.03 ft higher.
Mary small diversions
REMARKS.--FIow completely regulated since Oct. 31, 1967, by Phillips Lake, active capacity, 90,540 acre-ft.
for irrigation above station.
AVERAGE DISCHARGE.--17 years, 107 ft/s, 77,520 acre-ft/yr, not adjusted for storage in Phillips Luke.
EXTREMES FOR PERIOD OF RECORD.--Maxirnum discharge observed, 971 ft3/s Apr. 30, 1965, gage height. 4.43 ft; no flow Nov. 12, 1967.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge, 1,600 ft3/s, approximately, Mar. 20, 1910, based on comparison with records
for station downstream, near Baker.
STATISTICAL SUMMARIES
IONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1969-82
1968-82
STANDARD
COEFFI-
DEVIA- dENT OF
MONTH
MINIMUM
MAXIMUM
MEAN
TION
VARI-
(CFSI
(CFS)
(CFS)
(CFSI
ATION
OCTOBER
NOVEMBER
DECEMBER
2.6
20
.5
.5
15
JANUARY
FEBRUARY
.4
.8
1.1
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
7.6
7.0
6.6
14
13
53
13
14
317
51
11
311
110
157
148
86
56
22
519
529
273
326
299
301
209
171
94
89
97
111
127
48
72
39
60
177
112
36
MARCH
APRIL
5.3
3.8
3.6
3.9
11
197
PERIOD
(CONSECU-
PERCENT
OF
ANNUAL
RUNOFF
.46
.50
.52
.59
1.06
1.73
.88
.34
.42
.24
.34
.8
.6
.5
.5
1.0
3.9
lIVE
2
DAYS)
50%
3.2
1.1
3
4.1
7
4.2
5.0
5.4
5.8
6.5
1.4
1.5
14
30
60
90
120
183
8.3
24.5
22.5
2
5
20%
20
50
100
10%
5%
2%
1%
7.1
.2
.3
.3
.5
.9
.5
.7
.7
1.0
1.5
2.4
1.11
3.0
2.3
2.7
3.3
3.5
4.4
6.2
14.8
15.7
7,0
.41
.33
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1968-82
IN CES, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
10
2.0
2.6
3.4
4.0
4.6
11
DISCHARGE,
1.25
5
20%
1
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
10
25
50
100
10%
4%
2%
1
PERIOD
(CON-
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
SECU-
TIVE
2
5
10
25
50
100
DAYS)
50%
2D%
10%
4%
2%
1%
461
447
428
395
538
526
575
565
555
539
508
477
415
612
9O
95%
1
WEIGHTED SKEW =
3
7
15
352
30
60
90
301
273
511
486
447
404
358
604
602
601
582
575
488
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1968-82
DISCHARGE,
5%
428
5%
323
270
20%
234
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
202
30%
t68
40%
97
50%
Il
60%
70%
9.0
75%
7.9
80%
6.8
5.6
3.9
2.0
53
POWDER RIVER BASIN
13275500
POWDER RIVER NEAR BAKER, OR
LOCATION.--Lat 44"3920', long 117"5230", in NE sec.36, T.10 S., R.39 E., Baker County, Hydrologic Unit 17050203, on right bank 700
ft downstream from Stices Gulch, 8.5 ml south of Baker, and at mile 116.2.
DRAINAGE AREA.--219 mi2.
PERIOD OF RECORD.--Decernber 903 to August 1914, July 1926 to September 1968.
WSP 1317. PubI shed as "near Baker City" December 1903 to December 1905,
October 1928 to September 1951.
Monthly discharge only for some periods, published in
and as "at Salisbury" January 1906 to August 1914,
GAGE.--Water-stage recorder and concrete-filled bag control. Datum of gage is 3,632.3) ft National Geodetic Vertical Datum of 1929.
Dec. 20, 1903, to Feb. 29, 1912, staff gage at $ ite 400 ft upstream at different datum. Mar. 1, 1912, to Aug. 1, 1914, and June
16, 1926, to Oct. 15, 1933. staff gage at site 0 .4 ml downstream at different datum. Oct. 16, 1933, to Sept. 3, 1965, graphic
water-stage recorder at present site and datum.
REMARKS.--Flow regulated since Oct. 31, 1967, by Phi hips Leke (active capacIty, 90.540 acre-fIl.
irrigation above station.
Many small diversions for
At times Auburn ditch diverts water into basin above station.
AVERAGE DISCHARGE.--51 years
water years 1905-13, 1927-681, 110 ft3/s, 79.640 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maxjmum discharge, 1,820 ft/s Mar. 20. 1910, gage height, 7.05 ft. site and datum then in use; no
flow Aug. 31, 1909, Sept. 7, 193).
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
1905-67
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1906-67
STAN-
IONTH
MINIMUM
I CFS)
(CFS)
40
15
5.6
111
114
27
17
36
161
38
60
25
26
45
'53
101
344
271
162
143
12y
6
31
10
8.5
FEBRUARY
12
MARCH
28
APRIL
'lAY
At
JUNE
22
231
671
65S
33
57
.5
.3
AUGUST
SEPTEMBER
40
49
110
ANNUAL
RUNOFF
.60
.65
.69
.68
.75
.66
.47
.42
7.1
8.5
41
192
OF
ATION
9.8
13
PERCENT
dENT OF
VARI-
9.2
'56
JIJLY
ANNUAL
TION
(CFS)
MEAN
ICFSI
1.9
OCTOBER
NOVEMBER
DECEMBER
JANUARY
MAXIMUM
40
ICONSECU-
lIVE
2
5
50%
20%
4.2
1.2
2.0
2.7
2.8
14
4.5
5.0
5.6
4.5
30
6.2
11.5
25.9
26.8
60
90
120
10
5.1
13
.55
.67
17.4
183
1°
7.2
'2
.75
.83
1.0
.6
1
3
7
479
725
WEIGHTED SKEW "
5
20%
1050
.36
25
50
00
10%
4%
2%
1%
1480
1640
20
50
100
10%
5%
2%
1%
1.0
1.3
1.6
.5
.6
.7
.9
1.2
2.1
1.9
2.3
3.6
8.1
3.2
5.0
9.2
.2
.3
.3
.1
.1
.1
.4
.2
.3
.6
.6
1.2
2.1
3.5
.2
.1
.1
.1
.1
.1
.4
1.2
2.3
5.3
.8
1.7
4.3
100
10
1250
10
3.5
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1905-67
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
EXCEEDANCE PROBABILITY,
DAYS)
DISCHARGE,
A0%
INFYVAL,
PEPIOD
MAGNITUDE AND PROBABlE 'TV OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1905-67
1.25
IN CFS, FOR INDICATED RECURRENCE
IN YEARS, AND ANNUAL NONIN PERCENT
DISCHARGE,
COEFFI-
DEVIA-
IN CES, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
LX:EEEAN.E PROBAVILITY, IN PERCENT
DISCHARGE,
PER I 00
CONSECU-
TIVE
2
5
10
25
50
(00
DAYS)
50%
20%
10%
4%
2%
1%
952
893
810
1110
1030
925
1290
1180
1040
1410
1270
1110
15
675
641
589
525
1510
1350
1170
1010
60
90
373
320
512
435
1800
-.43)
3
7
3P
°54
591
677
732
904
575
622
11
981
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD
DISCHARGE,
51
493
111%
337
15%
252
20%
1b3
782
662
905-67
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
134
306
40%
50%
96
55
36
60%
70%
753
30%
15
12
85%
9.5
90%
7.1
95%
4.2
54
POl'IDER RIVER BASIN
13286700
POWDER RIVER NEAR RICHLAND, OR
LOCATION.--Lat 4446'4O', long 117173O", in SE/ sec.14, T.9 S., R.44 E., Baker County, Hydrologic Unit 17350203, on left bank
0.4 mi upstream from Upper Timber Canyon, 6.3 ni west of Richiand, and at mile 20.3.
DRAINAGE AREA.--1,310 ni2, approximately.
PERIOD OF RECORD.--October 1957 to September 1982.
GAGE.--Water-stage recorder-.
Datum of gage is 2,277.42 ft National Geodetic Vertical Datum of 1929.
REMARKS.--Regulation by several reservoirs, the largest being Phi II ips Lake since Oct. 31, 1967, active capacity, 90,540 acre-ft,
Thief Valley Reservoir, capacity, 17,400 acre-ft, and since April 1975, Wolf Creek Reservoir, capacity, 10,400 acre-ft.
Diversions for irrigation above and below station.
AVERAGE DISCHARGE.--25 years, 255 ft3/s, 184,700 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--MaxImum discharge, 4,090 ft3/s Feb. 21, 1992, gage height, 7.50 Vt, from floodmark; maximum gage
height, 9.29 ft Jan. 15, 1974 lice jam); minimum discharge, 0.80 ft3/s Aug. 11, 12, 1966.
STATISTICAL SUMI.IARIES (BEFORE THE CONSTRUCTION OF PHILLIPS LAKE)
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
ICFS)
(CFS)
12
38
33
28
87
177
174
40
52
33
MEAN
(CFS)
76
72
198
557
1081
ICFS)
42
56
104
909
1092
1533
319
229
347
452
328
591
425
401
917
66
48
10
116
455
.46
.18
.52
.95
.86
.57
.59
1.06
.82
10
54
165
173
PERIOD
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
20
370
405
128
85
83
7.7
STANDARD
DEVIATION
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1959-67
1955-57
.49
44
32
20
25
225
126
.56
.40
.55
(CON-
SECUTIVE
2
5
DAYS)
50%
20%
22
23
1.6
2.1
3
3.8
7
6.3
14
13.6
14.9
21.7
15.6
14.7
2.4
1.8
1.6
1
80%
803
50%
20%
1290
2080
10
105
25
48
100
2%
1%
1.6
6.2
3.5
13
7.7
4.7
14
8.6
5.3
30
60
90
31
37
17
120
183
45
43
53
7.6
10.0
21
14
25
28
36
17
12
20
29
15
24
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1958-67
IN
PERIOD
50
100
2%
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
SECUTIVE
2
5
DAYS)
50%
20%
10%
1120
1070
1000
1840
1770
1620
1400
1143
836
738
2480
2380
2140
10
25
4%
50
100
2%
1%
2680
1
WEIGHTED SKEW =
50
5%
11
I CON-
5
3.7
8.4
20
100
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
10
10
25
28
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1958-67
1.25
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.046
3
7
15
894
30
736
60
90
541
467
1800
1460
1090
971
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1958-67
DISCHARGE,
5%
63
10%
61R
15%
435
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
20%
341
30%
271
200
40%
124
508
60%
70%
75%
80%
85%
90%
95%
86
65
53
48
42
37
31
23
55
POWDER RIVER BASIN
POWDER RIVER NEAR RICHLAND, OR--Con-tir,ued
13285700
STATISTICAL SUMMARIES (AFTER THE COMPLETION OF PHILLIPS LAKE)
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1969-82
1968-82
STAN-
1ONTH
OCTOBER
NOVEMBER
DECEMBER
MINIMUM
MAXIMUM
ICES)
(CFS)
17
20
34
42
86
132
38
23
24
16
ANNUAL
58
520
MARCH
APRIL
MAY
JUNE
9.2
JULY
14
DEVIA-
dENT OF
liON
VARI-
ICES)
(CFS)
ATION
57
55
25
111
72
267
375
205
223
531
36
556
527
539
333
336
398
167
50
66
201
24
26
.43
.38
.65
.77
.59
.60
.60
.54
.74
1.20
.48
.39
274
142
.52
91
AUGUST
SEPTEMBER
JANUARY
FEBRUARY
COEFFI-
MEAN
103
237
750
1034
1277
981
1095
1141
798
118
106
DARD
2
PERIOD
PERCENT
ICONSECU-
OF
ANNUAL
RUNOFF
TIVE
2
5
DAYS)
50%
20%
1.7
1.7
3.4
80%
50%
100
2%
1%
4.8
5.6
9.2
3.1
3.5
8.1
'1.9
14
32
17
11
30
60
35
21
15
11
45
21
90
51
28
32
53
63
35
39
16
17
19
6.8
24
26
29
22
2.0
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1968-82
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
DISCHARGE,
PERIOD
EXCEEDANCE PROBABILITY,
(CON5
20%
50
5%
13
120
183
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
20
10%
27
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
1.25
10
7.6
15
19
1
3
7
8.1
11.4
15.1
16.8
16.0
16.3
5.1
1.5
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
10
25
50
100
10%
4%
2%
1%
IN PERCENT
SECU-
TIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
1390
2190
2030
2580
2420
2050
2930
2780
2340
1640
1410
1210
1110
1860
1600
1380
1280
1
WEIGHTED SKEW =
30
60
270
1100
912
783
660
90
591
3
7
15
1740
1400
1200
1020
934
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1968-82
DISCHARGE,
5%
1010
IO
796
15%
623
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
2O
25
3O
489
380
301
40%
185
50
107
60%
70%
75%
80%
85%
90%
95%
70
55
50
45
39
30
20
56
POWDER RIVER BASIN
13288200
EAGLE CREEK ABOVE SKULL CREEK, NEAR NEW BRIDGE, OR
LOCATION.--Lat 44°52'50", long 11715'1O', in SE sec.7, T.8 S., R.45 E., Baker County, Hydrologic Unit 17050203, Wallowa-Whitman
National Forest, on left bank 0.5 ml upstream froni Skull Creek, 6.5 ml northwest of New Bridge, and at mile 10.5.
DRAINAGE AREA.--156 ni2.
PERIOD OF RECORD.--October 1957 to September 1982.
Altitude of gage Is 2,800 ft, from topographic map.
GAGE.--Water-stage recorder.
Some diversions above station for Irrigation and one sinaI I interbasin diversion for irrigation supply.
diversions are small compared to flow at station during Irrigation season.
REMARKS.--No regulation.
All
AVERAGE DISCHARGE.--25 years, 322 ft/s, 233,300 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 5,310 ft3/s July 12, 1975, gage height, 5.06 ft. from rating curve extended above
2,500 ft3/s on basis of slope-area measurement of peak flow; maximum gage height, 6.88 ft Jan. 25, 1962 (ice jam); minimum daily
discharge, 30 ft3/s Nov. 28, 1976.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
1959-82
BASED ON PERIOD OF RECORD
1958-82
STANDARD
DEVIAMINIMUM
(CFS)
MONTH
MAXIMUM
ICFSI
MEAN
(CES)
TION
(CFS)
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
PERIOD
(CONSECU-
TIVE
RUNOFF
DAYS)
JUNE
252
276
JULY
84
AUGUST
63
66
252
148
109
42
172
26
.47
.35
.32
.27
.32
.35
.35
.29
.36
.54
.28
.24
118
519
322
79
.25
MARCH
69
78
72
59
72
65
APRIL
191
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
lAY
SEPTEMBER
ANNUAL
323
264
211
191
230
306
649
1747
2134
1011
113
128
120
53
114
31
128
170
42
60
45
38
392
138
9z11
1069
276
389
426
231
2.9
3.3
3.1
3.0
3.3
4.4
10.2
24.4
27.7
11.0
3.8
2.8
14
30
60
90
80%
1570
50%
20%
2040
2730
10
25
50
100
10%
4%
2%
1%
3220
3870
20
50
100
10%
5%
2%
1%
50
56
59
44
39
49
52
55
33
46
48
61
57
60
64
69
75
5
52
55
59
65
70
73
78
84
64
93
98
107
91
65
68
73
79
51
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1958-82
PERIOD
(CONSECU-
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
TIVE
2
5
DAYS)
50%
20%
1830
1720
1590
1450
1300
1080
2270
2160
2000
1800
1570
10
25
50
100
10%
4%
2%
1%
2470
2370
2180
1950
2670
2590
2360
2070
2790
2710
2450
2130
1660
1390
1140
1720
1450
1190
1750
1470
1200
4380
1
WEIGHTED SKEW =
10
20%
70
76
79
83
88
120
183
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
5
2
50%
81
DISCHARGE,
2
EXCEEDANCE PROBABILITY, IN PERCENT
63
65
70
74
1
3
7
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1958-82
1.25
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NON-
.376
3
7
15
30
60
90
901
1310
1080
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1958-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
1230
10%
885
15%
659
20%
480
25%
352
30%
259
40%
80
50%
145
60%
124
70%
109
75%
102
80%
85%
90%
95%
89
81
73
57
POWDER RIVER BASIN
POWDER RIVER NEAR ROBINETTE, OR
13289500
Baker County, Hydrologic Unit 17050203, on left bank 2.2
LOCATION.--Lat 4446'1O", long 117°O4'lO", in E-1/2 sec.22, T.9 S., R.46
mouth.
ml northwest of Robinette and 2.5 ci upstream fr
DRAINAGE AREA.--1,660 mi2, approximately.
PERIOD OF RECORD.--September 1928 to September 1957.
Prior to Aug. 24, 1936, staff
GAGE.--Water-stage recorder. Datum of gage is 1,937.10 ft National Geodetic Vertical Datum of 1929.
Aug. 24, 1936, to Oct. 31, 1948, staff gage at site 50 ft upstream at present datum.
gage at site 0.5 ci upstream at different datum.
Many
REMARKS.--Flow partly regulated by several reservoirs, the largest being Thief Valley Reservoir Icapacity, 17,000 acre-ft).
left bank.
diversions for irrigation above station. One canal with capacity of about 5 ft3/s diverts around station on
AVERAGE DISCHARGE.--29 years (water years 1929-57), 534 ft3/s, 386,600 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge. 5,500 ft3/s May 27. 1956. gage height, 6.38 ft; minimum observed, 18 ft3/s
Sept. 2-10, 1931.
STATISTICAL S14MARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1930-57
1929-57
STAN-
MINIMUM
MONTH
(CFS)
MAXIMUM
(CFSI
MEAN
ICFSI
DARD
DEVIATION
(CFS)
PERIOD
COEFFI- PERCENT
OF
CIENT OF
ANNUAL
VARIRUNOFF
ATION
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
35
70
80
58
86
174
253
416
755
769
1302
2978
2824
JULY
AUGUST
SEPTEMBER
235
48
26
22
2971
1106
253
215
ANNUAL
216
916
62
.45
2.2
184
229
75
140
142
.41
.61
2.9
3.7
5.9
11.2
19.6
240
377
719
711
490
379
139
109
107
53
52
.59
.56
.49
.52
.45
.58
.73
.49
.48
534
212
.40
1254
1452
1245
358
213
352
656
656
719
260
1
3
7
14
3.6
30
60
90
22.6
120
183
19.4
80%
1660
5
50%
20%
2630
3960
10
10%
4 OO
25
4%
5810
50
2%
10
10%
66
69
73
78
39
29
42
44
47
31
84
50
95
57
107
122
150
65
77
37
42
48
33
34
58
81
101
20
5%
50
2%
22
23
25
26
28
32
36
44
66
16
17
18
19
100
1%
20
23
26
32
52
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1929-57
PERIOD
(CONSECUTIVE
DAYS)
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
10
25
50%
20%
10%
4%
2510
2370
2190
3680
3480
3280
2980
2540
2150
1870
4360
4130
3930
3590
3070
2560
2230
5130
50
2%
100
1%
6520
1
WEIGHTED SKEW =
5
20%
1.7
1.7
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
2
50%
5.6
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1929-57
1.25
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
3
-.439
7
1980
1700
1480
1290
15
30
60
90
4860
4670
4280
3680
3020
2640
5630
5340
5170
4750
4100
3330
2930
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1929-57
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
1990
10%
1470
15%
1120
20%
867
25%
683
30%
548
40%
344
50%
232
60%
t80
70%
148
75%
133
80%
117
85%
101
90%
95%
81
54
58
IMNAHA RIVER BASIN
13292000
IMNAHA RIVER AT IMNAHA, OR
LOCATION.--Lat 45°33'45, long 1165OOO", in SW/ sec.16, T.1 N., R.48 F., Wallowa County, Hydrologic Unit 17060102, on left bank at
Imnaha, 0.3 mi downstream from Big Sheep Creek, and at mile 19.3.
DRAINAGE AREA.--622 rn)2.
PERIOD OF RECORD.--June 1928 to September 1982.
GAGE.--Water-stage recorder. Datum of gage is 1,941.14 ft National Geodetic Vertical Datum of 1929.
Prior to Aug. 6, 1934,
nonrecording gage at site 0.25 ml upstream at different datum.
Aug. 6-31, 1934, nonrecording gage at present site and datum.
REMARKS.--No regulation.
Diversions for irrigation above station.
station for irrigation in Wallowa River basin.
Water is diverted from Big Sheep Creek and tributaries above
AVERAGE DISCHARGE.--54 years, 517 ft3/s, 374,600 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximun discharge. 10,100 ft3/s Jan. 17, 1974, gage height, 7.86 ft, from rating curve extended above
3,500 ft3!s; minimum observed, 16 ft3/s Nov. 22, 1931, result of freezeup; minimum daily, 25 ft3/s Nov. 22, 23, 1931.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIATION
(CFSI
(CFSI
(CFS)
(CFSI
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1930-82
1929-82
COEFFI- PERCENT
OF
CIENT OF
VARIANNUAL
ATION
RUNOFF
PERIOD
(CONSECU-
TIVE
2
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
82
501
159
63
80
89
69
625
806
393
569
869
1760
2804
187
91
219
193
236
377
942
1603
1365
136
84
82
114
345
445
423
2612
123
79
1348
83
256
567
193
143
184
829
516
380
.40
.49
.62
.43
.47
112
162
345
535
529
308
70
39
150
2.3
10
25
50
100
50%
20%
10%
4%
2%
1%
5110
6540
7690
64
80
85
71
76
71
111
99
91
81
116
104
95
75
80
183
165
128
111
100
85
88
51
81
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD
1929-82
PERIOD
(CONSECUlIVE
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
10
25
50
100
50%
20%
10%
4%
2%
1%
2470
2300
2130
1930
1740
1550
1350
3460
3170
2880
2570
2290
2000
1720
4090
3710
3330
2950
2580
2230
1910
4870
4350
3840
3370
2910
2460
2100
5430
4810
4190
3660
3110
2610
2210
5970
5240
4520
3920
3290
2730
2300
8930
1
WEIGHTED SKEW =
71
94
7
IN
5
4090
27
36
100
.29
2
2710
33
44
59
1%
3.1
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1840
51
100
105
1
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1929-82
1.25
80%
39
61
50
2%
30
60
90
120
3.8
.27
48
20
5%
66
79
88
14
9.2
10%
76
88
98
3.1
.54
.36
70
84
98
10
5
20%
108
119
128
136
144
3
25.9
22.1
50
23
32
46
59
66
2.6
3.0
3.5
6.1
15.2
.43
.37
.33
.39
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.199
3
7
15
30
60
90
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1929-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
1860
10%
1420
15%
1120
20%
861
25%
63
30%
496
408
310
50
230
608
188
70%
158
75%
147
80%
137
85
126
90%
113
958
94
GRANDE RONDE RIVER BASIN
13318500
59
DRANDE RONDE RIVER NEAR HILGARD, CR
LOCATION.--Lat 4519'O6", long 11816'l5", near center of sec.11, 1.3 S., R.36 F., Union County, Hydrologic Unit 17060104, on right
bank 0.5 mi upstream from lower reservoir site of Bureau of Reclamation, 0.8 mi upstream from Spring Creek, and 3 ml southwest of
Hilgard.
DRAINAGE AREA.--505 rn)2.
PERIOD OF RECORD.--January 1938 to September 1956.
Monthly discharge only prior to October 1945, published in WSP 1317.
GAGE.--Water-stage recorder. Datum of gage is 3,058.05 ft National Geodetic Vertical Datum of 1929.
water-stage recorder at site 800 ft upstream at different datum.
Prior to Sept. 16. 1946,
REMARXS.--Several small diversions for irrigation above station.
Since 1909, city of La Grande has diverted about 3 ft/s for
municipal use at Beaver Creek Reservoir (capacity, about 900 acre-ft).
AVERAGE DISCHARGE.--18 years (water years 1939-56), 274 ft2/s, 198,400 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 5,060 ft3/s May 8, 1956, gage height, 6.48 ft. from rating curve extended above
3,100 ft3/s; minimum, 6 ft3/s Aug. 10, 12-29, Sept. 1-4, 1940.
STATIST I CAL SUMMAR I ES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
MEAN
STANDARD
DEVIAlION
(CFS)
(CFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD
1939-56
1938-56
COEFFI-
PERCENT
dENT OF
OF
VARIANNUAL
ATION
RUNOFF
PERIOD
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
18
128
20
323
467
17
25
29
72
301
118
493
387
1590
1922
1096
246
200
455
878
788
420
230
48
JULY
AUGUST
13
SEPTEMBER
ANNUAL
35
73
145
841
24
200
322
423
282
98
65
55
28
14
14
71
25
12
.66
.50
.49
129
478
272
100
.37
7.0
11
8.0
8.2
8.5
6.9
15
14
17
11
9.1
7.5
30
60
18
12
9.8
21
15
12
11
26.9
90
15
14
120
183
23
26
42
17
24.1
12.9
3.0
21
19
18
27
23
20
6.1
13.9
2
5
10
50%
20%
10%
25
4%
50
2%
1620
2190
3010
3590
50
2%
100
1%
7.0
7.1
8.1
.9
.8
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1938-56
PERIOD
(CONSECUTIVE
100
1%
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
2
5
50%
20%
10%
1700
1500
1320
1150
2310
2060
2720
2470
2190
25
4%
10
50
2%
100
1%
4340
1
WEIGHTED SKEW =
9.7
9.9
14
1
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
10%
14
2.2
4.4
3.6
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1938-56
80%
20
5%
10
5
20%
7
1.1
.76
.67
.44
.37
.54
.67
2
50%
3
.68
.98
.96
71
139
89
134
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.187
3
7
15
30
60
90
981
860
731
1820
1580
1350
1170
991
1870
1610
1390
1170
3250
3020
2690
2230
1960
1670
1390
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1938-56
DISCHARGE,
5%
1110
10%
803
15%
27
20%
488
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
361
30%
268
40%
156
50%
60%
70%
75%
80%
85%
90%
95%
3
52
37
32
28
24
20
17
60
GRANDE RONDE RIVER BASIN
13318800
GRANDE RONDE RIVER AT HILGARD. OR
LOCATION.--Lat 45°20'21", long 118l4'35', in NE*NE sec.1, T.3 S., R.36 E., Union County, Hydrologic Unit 17060104, on left bank
8.8 mi northwest of La Gr-ande, 1.6 mi upstream from Fivepolnt Creek, and at mile 171.3.
DRAINAGE AREA.--555 mT2.
PERIOD OF RECORD.--October 1966 to September 1982.
Datum of gage is 2,993.62 ft National Geodetic Vertical Datum of 1929.
GAGE.--llater-stage recorder.
REMARKS.--Sl ight regulation by city of La Grande reservoir on Beaver Creek, capacity, about 900 acre-ft. Diversions for irrigation
above station.
Since 1909, city of La Grande has diverted about 3 ft3/s from Beaver Creek above station for domestic water
supply.
AVERAGE DISCHARGE.--16 years, 299 ft3/s, 216,600 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 4,740 ft3/s Mar. 13, 1972, gage height, 7.18 ft; maximum gage height, 12.25 ft
Jan. 15, 1974 lice jam); mininurn discharge, 9.6 ft3/s Aug. 17, 18, 23, 1973.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Jan. 30, 1965, reached a stage of about 9 ft. from floodmark, discharge not determined.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
MEAN
(CFS)
STANDARD
DEVIAlION
(CFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1968-81
1967-82
PERIOD
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
25
31
33
27
49
75
181
256
85
22
56
236
36
481
681
521
1668
1481
159
8.6
272
288
544
787
1340
825
253
.24
.79
.90
.72
.46
.69
.49
.38
.54
.58
56
143
197
71
133
374
389
333
229
882
421
101
12
81
36
.47
1.0
17
51
31
10.0
.32
.9
122
454
99
.33
18
14
19
15
21
14
22
24
16
17
19
16
14
22
24
26
40
19
16
18
30
60
90
29
31
120
183
33
52
1730
5
50%
20%
2360
3220
10
10%
3790
25
4%
50
2%
100
1%
11
11
12
21
23
35
21
32
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1967-81
PERIOD
(CONSECUTIVE
DAYS)
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
2
5
10
25
50%
20%
10%
4%
2000
2650
2330
3110
2690
2290
3720
3130
2700
2290
50
2%
100
1%
4520
1
WEIGHTED SKEW =
50
2%
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
11
7
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1967-81
1.25
80%
10%
2.8
59
17
302
5
20%
3
1
11.6
20
5%
10
2
50%
12
13
13
14
1.0
2.0
4.4
7.5
7.9
15.0
21.7
24.3
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.040
1790
1500
1260
1080
3
7
15
30
60
90
914
801
1970
1690
1450
1230
1080
1960
1650
1380
1210
1870
1540
1340
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1967-81
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
10%
1200
903
15%
683
20%
524
25%
394
30%
317
40%
202
50%
114
60%
70%
75%
80%
85%
90%
95%
65
45
39
34
30
26
21
61
GRANDE RONDE RIVER BASIN
GRANDE RONDE RIVER AT LA GRANDE, OR
13319000
LOCATION.--Lat 452O'47", long 118°O7'26", in IWSE sec.36, T.2 S., R.37 E., Union County, Hydrologic Unit 17060104, on right bank
1.8 ml northwest of La Grande, 5.7 ml downstream from Fivepoint Creek, and at mIle 164.0.
DRAINAGE AREA.--678 mi2.
Monthly
PERIOD OF RECORD.--October 1903 to September 1915, February 1918 to September 1923, October 1925 to September 1982.
discharge only for some periods, published in WSP 1317.
PublIshed as "at Hilgard" 1903-15.
Datum of gage is 2,826.25 ft National Geodetic Vertical Datum of 1929. Nov. 6, 1903, to Sept. 30,
1915, nonrecording gage at site 5.5 ml upstream at various datums. Feb. 16, 1918, to June 28, 1923, and Oct. 1, 1925, to Nov. 23,
1931, nor,recording gage at site 0.7 ml downstream at various datums. Nov. 24, 1931 to Oct. 8, 1965, water-stage recorder at site
0.3 ml upstream at datum 4.61 ft higher.
GAGE.--Wster-stage recorder.
REMARKS.--Since 1915, slight regulation by city of La Grande reservoir on Beaver Creek capacity, about 900 acre-ft. Diversions for
irrigation above station. Since 1909, cIty of La Grande has diverted about 3 ft3/s from Beaver Creek above station for domestic
water supply.
AVEGE DISCHARGE.--74 years, 384 ft3/s, 278.200 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 14,100 ft3/s Jan. 30, 1965, gage heIght, 11.44 ft, site and datum then in use,
from rating curve extended above 7,200 ft3/s; minImum, 3.9 ft3/s Aug. 26, 1940.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1905-82
1904-82
STANDARD
DEVIAMINIMUM
(CFS)
MONTH
MAXIMUM
(CFS)
MEAN
(CFS)
TION
(CFS)
COEFFI- PERCENT
CIENT OF
OF
VARI-
PERIOD
(CONSECU-
ANNUAL
RUNOFF
ATION
TIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
16
145
22
700
669
1295
1379
3700
3372
2675
1328
600
20
12
25
83
237
118
MARCH
APRIL
MAY
JUNE
58
JULY
18
SEPTEMBER
ANNUAL
141
.57
1.13
1.00
1.09
.90
.69
.46
24
105
178
237
178
218
334
757
302
1291
589
1068
551
459
285
90
521
31
82
30
17
14
.86
.54
.47
706
381
145
.38
104
.9
1
2.0
3.9
4.7
7.3
3
7
14
30
60
90
120
183
16.4
28.0
23.2
10.0
2.3
.52
.62
88
7.0
8.8
AUGUST
42
93
2150
50%
20%
3180
PERIOD
4800
10
25
50
100
10%
4%
2%
1%
6000
760
8990
50
100
5%
2%
1%
9.8
5.7
5.9
6.8
7.8
9.2
7.3
7.7
8.7
9.7
15
16
10
17
11
19
12
21
14
11
25
18
21
15
24
34
21
12
15
19
24
ii
28
3.2
3.4
4.1
4.3
4.1
4.9
5.1
5.9
7.2
9.9
6.0
8.6
13
17
11
16
18
20
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
SECU-
TIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
2720
2380
2040
4120
3520
2920
2420
2050
5110
4320
3490
2870
2450
2040
6440
5370
4200
3430
2950
2420
2020
7480
6180
4720
3830
3310
2690
2240
8560
7010
5240
4220
3670
2960
2440
iO400
1
WEIGHTED SKEW =
20
10%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1904-82
(CON80%
10
100
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
5
5
20%
28
32
52
DISCHARGE,
2
2
50%
.7
.6
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1904-82
1.25
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.174
3
7
1710
1440
1220
1050
15
30
60
90
1720
1460
1720
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1904-82
DISCHARGE,
5%
1650
10%
1150
15%
852
20%
650
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
495
30%
365
40%
t93
50%
103
60%
70%
75%
80%
85%
90%
95%
62
43
38
33
28
23
18
62
GRANDE RONDE RIVER BASIN
13320000
CATHERINE CREEK NEAR UNION, OR
LOCATION.--Lat 45°O9'20", long 117°46'26", in Nil/SEL sec.2, 1.5 S., P.40 E., Union County, Hydrologic Unit 17060104, on right bank
3.0 ml downstream from Little Catherine Creek, 5.5 ml southeast of Union, and at mile 25.4.
DRAINAGE AREA.--105 m12.
PERIOD OF RECORD.--May 1906 to May 1907 Igage heights onlyl
August 1911 to December 1912, March to September 1915, February 1918 to
September 1919, October 1925 to September 1092. l.lonl-hly discharge only for some periods, published in WSP 1317.
,
GAGE.--Water-stage recorder. Datum of gage is 3,081.76 ft National Geodetic Vertical Datum of 1929 lOregon State Highway Department
bench mark). Prior to Nov. 28, 1938, nonrecording gage at several sites within 1.8 mi of present site at various datums. Nov.
28, 1938, to May 16, 1939, water-stage recorder at site 400 ft downstream at datum 4.29 ft lower.
REMARKS.--No regulation.
Several small diversions for irrigation above station.
basin provides a small part of the water used for irrigation in that basin.
Since 1937, diversion to Big Creek in Powder River
AVERAGE DISCHARGE.--59 years Iwater years 1912, 1919, 1926-82), 118 ft3/s, 85,490 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,740 ft3/s May 27, 1948, gage height, 4.57 ft; minimum, 6.5 ft3/s Feb. 4, 1955,
result of freezeup; minimum daily, 8 ft1/s Nov. 7, 1925.
STATISTICAL SUMMARIES IBEFORE CONSTRUCTION OF BIG CREEK DIVERSION)
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARy
MARCH
APRIL
MAY
JUNE
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIAlION
(CFSI
ICFS)
ICFS)
(CFS)
21
14
13
103
34
157
41
37
12
95
74
105
22
51
158
139
66
48
60
268
440
289
194
194
76
44
29
26
13
16
145
63
50
67
185
116
39
JULY
AUGUST
26
SEPTEMBER
ANNUAL
11
2.4
2.9
2.6
2.7
.60
.86
.62
.59
.42
.50
.23
.44
.67
18
6.7
19.0
31.1
5
10
25
.34
50%
20%
10%
4
50
2%
17
17
13
11
13
Ii
18
13
12
14
18
14
12
10
10
10
30
60
20
22
22
24
27
15
13
15
11
7
18
16
20
18
21
19
15
18
18
120
183
563
757
1160
1340
1470
100
1%
14
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1912-36
IN
PERIOD
ICONSECUlIVE
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
10
25
50
100
50%
20%
10%
4%
2%
1%
799
755
683
582
500
405
326
1090
1050
954
809
692
550
1230
1190
1100
1380
1340
1240
1080
441
511
1590
1
WEIGHTED SKEW =
50
2%
100
DAYS)
1000
20
5%
2.1
1.8
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
5
20%
7
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 912-82
1.25
80%
10%
10
2
50%
3
90
20.4
5.4
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
10
1
3.0
.58
.44
.37
9.4
ICONSECUTIVE
DAYS)
OF
ANNUAL
RUNOFF
VARIATION
35
PERIOD
PERCENT
dENT OF
23
22
38
203
375
776
632
COEFFI-
21
42
95
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
1919-36
BASED ON PERIOD OF RECORD
1912-36
-.191
3
7
15
30
60
90
938
808
635
943
732
596
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1912-36
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
496
10%
332
15%
229
20%
168
25%
119
30%
40%
50%
60%
70%
75%
80%
85%
90%
95%
92
57
41
33
28
26
24
22
21
17
63
GRANDE RONDE RIVER BASIN
13320000
CATHERINE CREEK NEAR UNION, OR--Continued
STATISTICAL SUMMARIES (AFTER COMPLETION OF BIG CREEK DIVERSION)
MONTHLY AND ANNUAL MEAN DISCHARGES
1938-82
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1939-82
STAN-
COEFFI- PERCENT
CIENT OF
OF
CARD
MONTH
MINIMUM
(CFS)
OCTOBER
NOVEMBER
DECEMBER
MAXIMUM
APRIL
(CFS)
138
100
125
22
20
23
101
23
28
135
83
445
60
90
230
213
121
742
412
86
JULY
34
AUGUST
313
96
19
686
226
62
SEPTEMBER
18
58
31
49
180
120
VARI-
.52
.39
IS
24
20
27
40
.31
.44
.45
.25
.24
0.6
38
7.5
2
5
10
20
50
100
50%
20%
10%
5%
2%
1%
19
15
17
18
14
16
17
18
12
15
11
11
14
16
17
19
21
15
16
18
13
14
16
20
22
3
7
23
25
27
28
30
14
6.3
30
60
16.0
28.7
21.8
120
183
90
23
24
26
35
29
20
22
23
22
23
24
27
26
18
20
20
21
21
22
25
22
24
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD
1938-82
DISCHARGE,
IN CR5, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
7.25
21
2.1
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
80%
20
6.7
2.7
.24
29
lIVE
DAYS)
1
2.7
3.3
.4
4.1
.42
.45
.44
.40
126
38
44
ICON-
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL. IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
SECU-
2.3
.51
93
PERIOD
ANNUAL
RUNOFF
ATION
I?
33
39
48
48
JUNE
ANNUAL
TION
(CFS)
MEAN
(CFS)
20
JANUARY
FEBRUARY
MARCH
MAY
DEVIA-
DISCHARGE,
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
PERIOD
(CON-
2
5
70
25
50
50%
100
20%
10%
4%
2%
7%
EXCEEDANCE PROBABILITY,
IN PERCENT
SECU-
lIVE
2
5
10
25
50
100
DAYS
50%
20%
10%
4%
2%
1%
676
647
598
532
466
888
849
787
695
1020
1170
1100
1010
1270
1190
1090
941
1370
1270
397
498
410
1
WEIGHTED SKEW =
3
7
15
30
60
90
334
604
965
894
784
677
546
443
880
752
591
473
798
616
489
1160
996
838
636
501
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1938-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
455
10%
334
15%
258
20%
191
25'i
136
30%
105
40%
50%
60%
70%
75%
80%
85%
90%
95%
68
51
42
35
32
30
28
26
23
64
GRANDE RONDE RIVER BASIN
13323500
GRANDE RONDE RIVER NEAR ELGIN, OR
sec.3, 1.1 S., R.39 E., Union County, Hydrologic Unit 17060104, on right bank
700 ft upstream frau abandoned highway bridge, 1.5 ml downstream from Willow Creek, 3.6 ml south of Elgin, and at mile 104.2.
LOCATION.--Lat 45'30'45, long 117°55'35, in NWNW
DRAINAGE AREA.--1,250 m12, approximately.
PERIOD OF RECORD.--August 1955 to September 1981.
Datum of gage is 2,660.31 ft National Geodetic Vertical Datum of 1929.
GAGE.--Water-s-tage recorder.
REMARKS.--No regulation. Many diversions for irrigation above station.
AVERAGE DISCHARGE.--26 years, 668 ft3/s, 484,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maxlmum discharge. 6.480 ft3/s Feb. 2, 1965. gage height, 13.79 ft; no flow Aug. 20-24, 1973.
Flood
EXTREMES OUTSIDE PERIOD OF RECORD.--Outstanding floods occurred In 1894 and 1917, based on Corps of Engineers flood profiles.
in May 1948 reached an elevation of 2,672.9 f-I on Corps of Engineers gage at bridge 700 ft downstream, discharge, 5,690 ft3/s,
result of discharge measurement.
STAT I STICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIATION
(CFSI
(CFS)
(CFS)
(CFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1957-81
1956-81
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
PERIOD
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
31
65
86
90
106
171
487
439
144
325
469
1176
1438
2760
3605
3395
3393
87
164
55
398
559
822
1108
1764
1879
997
333
408
584
687
782
792
475
175
136
32
30
.42
.48
.78
.80
.69
254
.38
1.7
1927
629
140
6.9
117
40
43
1100
668
11
211
.63
.59
.84
.73
97
1.1
.62
3
7
22.0
23.4
.44
21
26
33
43
57
120
183
12.4
2.2
80%
2450
3370
5
20%
4550
10
10%
5280
25
4%
6140
109
10%
20
5%
--
--
10
50
2%
100
1%
-6.0
9.5
.7
4.6
2.2
5.5
8.9
15
22
--
2.1
15
10
35
26
75
62
20
53
.2
.8
2.9
6.5
15
44
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1956-81
50
100
2%
1%
PERIOD
(CONSECUlIVE
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
50%
20%
10%
25
4%
50
2%
3360
3230
2920
2550
2210
4540
4410
4060
3510
3030
2620
2340
5230
5040
4690
4040
3460
3000
2680
5900
5680
5370
4600
3920
3410
3020
6310
6070
5810
4960
4200
3660
3220
10
100
1%
6760
1
WEIGHTED SKEW =
5
20%
.5
.5
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
--
14
30
60
90
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1956-81
1.25
2
50%
1
2.0
5.0
7.0
10.2
13.8
.71
DISCHARGE, IN CFS, FDR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
-.234
3
7
15
30
60
90
1890
1690
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1956-81
DISCHARGE, IN CFS. WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
2610
10%
1950
15%
1580
20%
1250
25%
Q63
30%
790
40%
480
50%
255
60%
144
70%
75%
80%
85%
90%
95%
98
82
64
45
30
15
GRANDE RONDE RIVER BASIN
13323500
55
INDIAN CREEK NEAR IMBLER, OR
LOCATION.--Lat 45'26'OO", long 11749'2O', S-1/2 sec.33, T.1 S.,
from North Fork and 7 mi southeast of Imbler.
R.40 E.
Union County, Hydrologic Unit 17060104, 600 ft upstream
DRAINAGE AREA.---22 mi2, approximately.
PERIOD OF RECORO.--March 1938 to September 1950.
GAGE.--Water-si-age recorder.
Altitude of gage is 3,800 ft, from topographic map.
REMARXS.--No diversion or regulation above station.
COOPER.ATION.__Records for 1938-45 furnished by Oregon Water
Resources Department.
AVERAGE DISCHARGE.--12 years (water years 1939-50), 41.5 ft3/s.
EXTREMES FOR PERIOD OF RECORD.--WaXimum discharge,
818 ft3/s May 27, 1948, from rating curve extended above 400 ft3/s; maximum gage
height, 4.09 ft sometime during period Jan. 4-7, 1947 (ice jam); minimum observed, 0.1 ft3/s Nov. 15. 1939.
STAT I STICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
MEAN
STANDARD
DEVIAlION
(CFS)
(CFS)
1939-50
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1940-50
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
PERIOD
(CONSECUlIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
3.1
1.7
2.1
14
5.6
7.7
20
39
30
35
3.5
4.0
6.0
19
29
140
107
316
JUNE
JULY
AUGUST
SEPTEMBER
27
269
95
ANNUAL
23
6.3
3.3
2.8
3.0
4.9
11
10
8.5
9.9
7.4
8.4
7.5
15
66
189
140
35
60
78
24
ii
32
6.9
4.8
56
42
11
10
.54
.63
.93
.86
.84
.49
.53
.32
.56
.73
.32
.43
2.2
2.1
304
424
WEIGHTED SKEW
5
20%
589
10
10%
25
4%
5
20%
1.1
1
3
2.2
1.7
7
14
2.0
3.1
13.2
38.1
30
60
90
120
4.2
4.7
28.2
6.5
183
6.1
2.8
10
20
50
100
10%
5%
2%
1%
1.8
1.9
2.9
3.1
3.4
3.6
3.9
1.4
1.5
1.5
1.7
1.8
2.4
2.9
3.1
1.2
1.2
1.2
1.3
1.4
2.1
2.6
2.8
3.6
3.2
2.0
2.2
2.3
2.8
3.2
3.5
4.2
1.4
1.0
.27
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1939-50
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
2
50%
1.6
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1939-50
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
50
100
2%
1%
PERIOD
(CONSECUlIVE
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
2
5
10
50%
20%
10%
369
350
314
266
227
501
591
465
406
347
298
222
538
457
393
339
243
170
186
25
4%
50
100
2%
1%
85%
90%
95%
698
-.042
3
7
15
30
60
178
138
90
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1939-50
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
216
10%
131
15%
93
20%
54
25%
30%
40%
37
27
14
50%
9.3
60%
6.8
70%
5.7
75%
5.1
80%
4.6
4.3
3.8
3.0
66
GRANDE RONDE RIVER BASIN
13327500
WALLOWA RIVER AT JOSEPH, OR
LOCATION.--Lat 45°20'15', long 117l3'35", in NW sec.5, 1.3 S., R.45 E., Wallowa County, Hydrologic Unit 17060105, on left bank
0.2 ml downstream from Wallows Lake dam, 1.1 mi south of Joseph, and at nile 50.0.
DRAINAGE AREA.--50.9 mi2
PERIOD OF RECORO.--November 1903 to August 1907, June 1908 to March 19)4, May to September 1915, December 1926 to September 1982.
Monthly discharge only for some periods, published in dSP 1317.
Published as 'near Joseph" 1911.
GAGE.--Water-stage recorder. Datum of gage is 4,326.86 ft National Geodetic Vertical Datum of 1929.
1915, nonrecording gage at several sites at lake outlet or near present site at different datums.
Nov.
12, 1903, to Sept. 25,
Silver Lake
REMARKS.--Monthly discharge adjusted for storage in Wal Iowa Lake and diversion from Wallows Lake by Silver Lake ditch.
ditch diverts at Wallowa Lake dam for irrigation northeast of Joseph.
City of Joseph diverts less than 1.0 ft3/s from Wal Iowa
Lake for municipal use.
AVERAGE DISCHARGE.--55 years Iwater years 1928-82), 134 ft3/s, 35.75 in/yr, 97,080 acre-ft/yr, adjusted for storage and diversion.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,550 ft3/s June 10, 1969, gage height, 5.15 ft; no flow at times in some years.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
M0TH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
(CFS)
ICFS)
5.2
6.7
5.4
159
135
6.1
99
5.0
2.8
61
3.1
16
159
91
22
9.0
51
MEAN
ICFS)
89
STANDARD
DEVIAlION
(CFSI
36
33
21
31
26
28
25
27
34
168
19
PERCENT
COEFFICIENT OF
OF
VARIANNUAL
ATION
RUNOFF
614
397
376
343
202
151
59
34
.59
.83
.83
.68
.63
.80
1.01
.47
.30
.29
.43
.58
172
112
31
.28
109
173
354
567
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PER 100 OF RECORD 1906-82
1905-82
27
16
21
34
79
111
100
86
PERIOD
ICONSECIJ-
TIVE
DAYS)
2.6
2.4
2.3
2.0
1.9
2.0
2.5
12.3
27.6
25.2
14.8
4.3
1.25
80%
2
5
50%
20%
30
60
90
20
83
15
19
10
20
11
21
12
15
24
25
50
4%
2
3.5
3.7
4.2
4.8
5.6
7.6
8.4
9.4
100
2%
1%
2.5
2.6
3.0
3.6
1.7
1.8
2.1
4.2
3.0
4.2
4.9
6.0
6.8
5.8
6.5
7.6
8.8
11
50
1.3
1.3
1.6
2.0
2.5
2.4
3.4
4.1
5.1
5.7
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1905-82
PERIOD
(CONSECUTIVE
IN PERCENT
10%
10%
5.3
5.6
6.1
6.9
7.8
12
12
13
INTERVAL, IN
10
5
20%
11
1
20
5%
10
2
50%
3
7
14
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY,
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
100
1%
DAYS)
1
WEIGHTED SKEW =
3
7
15
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
10
25
50%
20%
10%
4%
559
552
527
484
728
708
855
1030
821
661
755
657
567
480
429
975
878
739
628
525
465
421
30
60
90
365
330
590
513
439
394
50
2%
100
1180
1100
1340
1230
1070
973
799
669
554
488
1%
858
709
580
508
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1905-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
446
10%
365
15%
296
20%
214
25%
40
30%
100
40%
50%
60%
70%
75%
80%
85%
90%
56
35
28
23
21
17
13
11
95%
7.4
GRANDE RONDE RIVER BASIN
13329500
67
HURRICANE CREEK NEAR JOSEPH, OR
LOCATION.--Lat 452O'15", long 117l7'3O', in NE sec.3, 1.3 S., R.44 E., Wallowa County, Hydrologic Unit 17060105, on left bank 350
ft upstream fran intake of Moonshine ditch, 3.5 mi southwest of Joseph, and at mile 7.5.
DRAINAGE AREA.--29.6 ni2.
PERIOD OF RECORD.--April to September 1915, April 1924 to September 1978.
Monthly discharge only for sane periods, published in WSP
1317.
GAGE.--Water-stage recorder.
Altitude of gage is 4,500 ft. by barometer. Apr. 27 to Sept. 3, 1915. nonrecording gage at site 250 ft
Apr. 23, 1924. to June 13, 1933, water-stage recorder at site 150 ft downstream at different
downstream at different datum.
datum.
REMARKS.--No regulation or diversion above station.
AVERAGE DISCHARGE.--54 years, 74.3 ft3/s, 34.09 In/yr. 53,830 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge. 1.110 ft'/s June 9, 1948, gage height. 3.55 ft; maximum gage height, 6.94 ft
June 4
1977, backwater from debris; minimum dIscharge, 2.8 ft3/s Mar. 2, 1955, result of ice jam upstream; minimum daily, 6.0
ft3/s Jan. 6, Apr. 13. 1945.
STATISTICAL SUMMARIES
MONThLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
1926-78
BASED ON PERIOD OF RECORD
1925-78
STANDARD
DEVIAMONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MINIMUM
MAXIMUM
MEAN
(CFS)
(CFS)
(CFS)
16
13
96
69
33
11
67
10
10
44
37
42
27
22
20
20
46
9.0
MARCH
APRIL
14
111
MAY
64
292
439
TION
(CFS)
31
116
JULY
41
SEPTEMBER
25
20
355
113
62
164
AUGUST
ANNUAL
37
103
74
VARI-
14
13
.44
11
.42
.35
.34
.33
.49
.34
.30
.44
.36
.27
57
79
266
72
22
60
36
3.7
3.5
3.0
2.5
2.3
2.2
5.2
.41
23
9.5
2
DAYS)
50%
5
20%
13
14
10
1
7
14
14
15
16
30
60
90
120
183
29.9
18
19
21
24
402
548
5
20%
738
10
25
50
100
10%
4%
2%
1%
858
1010
1110
PERIOD
1%
9.9
11
11
13
14
15
16
19
8.4
8.9
9.3
9.8
11
12
13
14
16
7.2
7.7
8.1
8.5
9.7
11
11
12
15
6.0
6.5
6.9
7.2
8.4
9.3
9.9
11
13
5.3
5.8
6.1
6.4
7.6
8.5
9.0
9.7
12
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
SECU-
TIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
561
635
590
535
471
403
328
267
722
669
606
782
724
655
530
443
355
287
469
372
298
838
775
701
608
492
386
308
1220
436
407
369
327
293
247
204
1
WEIGHTED SKEW =
100
2%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD
1925-78
ICON2
50
5%
100
IN CFS. FOR INDICATED RECURRENCE INTERVAL, IN
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
50%
20
10%
6.7
4.0
DISCHARGE,
1.25
10
18.4
MAGNITUDE AND PROBABILITY Off INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1925-78
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS. AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
TIVE
3
18.6
.21
16
PERIOD
(CONSECU-
ANNUAL
RUNOFF
ATION
7.7
6.9
6.4
165
JUNE
COEFFI- PERCENT
CIENT OF
OF
-.129
3
7
15
30
60
90
522
474
418
365
301
246
571
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1925-78
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
285
10%
210
15%
157
20%
113
25%
30%
40%
50%
60%
70%
75%
80%
81
61
42
33
28
24
23
21
85%
90%
95%
t9
16
14
68
GRANDE RONDE RIVER BASIN
13330000
LOCATION.--Lat 4526'2O', long 11725'35", in NW
mi south of Lostine end at mIle 10.0.
LOSTINE RIVER NEAR LOSTINE, OR
sec.34, 1.1 S., R.43 E., Wallowa County, Hydrologic Unit 17060105, on left bank 3.5
DRAINAGE AREA.--70.9 mi2.
Monthly discharge only for some
PERIOD OF RECORD.--August 1912 to March 1914, April to September 1915, July 1925 to September 1982.
periods, published in WSP 1317.
See WSP 1317 or 1737 for history of changes prior to
GAGE.--Water-stage recorder. Altitude of gage is 3.650 ft, by barometer.
Dec. 16, 1953.
Dec. 16, 1953, to Aug. 23, 1977, at datum 1.04 ft higher.
REMARKS.--Minam Lake, capacity 440 acre-ft. has stored and diverted flow from Minam River Since 1917 for irrigation in Lostlne River
Diversions for irrigation above station.
basin.
AVERAGE DISCHARGE.--58 years (water years 1913, 1926-82). 196 ft3/s, 142,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maxinurn discharge. 2,550 ft3/s June 16, 1974, gage height, 8.59 ft, present datum; minimum, 7.5 ft/s
Mar. 2, 1966. result of freezeup; minimum daily, 10 ft3/s Nov. 28-30, 1936.
STAll STICAL SUMMARI ES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIAlION
(CFS)
CFS>
ICES)
ICES)
18
291
15
226
212
158
15
15
16
117
155
36
393
203
332
60
909
1427
15
19
.77
.70
.65
.54
.41
.44
.50
.31
.32
.54
.45
.38
43
.22
45
39
27
60
49
46
22
53
158
23
162
913
525
805
385
23
180
104
85
50
91
288
196
31
PERIOD
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
45
58
64
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1914-82
1913-82
79
258
207
39
(CONSECUlIVE
DAYS)
2.5
2.7
2.6
1
3
7
2.1
14
2.0
2.2
6.8
22.4
34.4
30
60
90
1280
2
5
20%
1570
1930
10
10%
2150
25
4%
2400
50
2%
2580
10%
23
24
26
27
30
34
18
19
15
16
20
17
41
47
18
20
22
23
24
27
21
23
25
27
29
32
20
5%
50
2%
100
14
12
11
14
15
12
13
11
16
17
19
14
20
20
23
1%
12
13
14
15
17
17
17
15
20
18
15
15
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1913-82
PERIOD
(CONSECU-
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
lIVE
2
5
DAYS)
50%
20%
10%
1360
1280
1150
1010
903
738
596
1700
1600
1460
1290
1130
893
715
1890
1780
1640
1460
1250
975
774
25
4%
50
100
2%
1%
2120
1990
2280
2130
2010
2430
2260
2150
1950
10
2750
1
WEIGHTED SKEW =
5
20%
16.5
3.7
2.1
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
50%
10
2
50%
37
120
183
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1913-82
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
-.055
3
7
15
30
60
90
1860
1660
1400
1060
836
1810
1490
1120
871
1580
1160
902
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1913-82
DISCHARGE,
5%
866
10%
614
15%
43
20%
295
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
g6
30%
138
40%
50%
60%
70%
75%
80%
85%
90%
95%
85
64
52
43
40
36
32
28
24
69
GRANDE RONDE RIVER BASIN
13330500
BEAR CREEK NEAR WALLOWA, OR
LOCATION.--Lat 4531'37", long 1l733'O5", in NWNE* sec.34, T.l N., R.42 E., Wallowa County, Hydrologic Unit 17060105, on right bank
30 ft downstream from road bridge, 3.0 ml southwest of Wallowe, and at mile 4.4.
DRAINAGE AREA.--68 mi2, approximately.
Monthly discharge only for some periods, published in WSP
PERIOD OF RECORD.--April to September 1915, April 1924 to September 1982.
1317.
Altitude of gage is 3,250 ft, by barometer. Apr. 13 to Sept. 16. 1915, nonrecording gage at site 1.0
Apr. 22, 1924, to Nov. 2, 1931, water-stage recorder at site 1.5 ml upstream at different datum.
GAGE.--Water-stage recorder.
mi upstream at different datum.
Diversions for Irrigation above station. Water for irrIgation in Lostine River basin diverted from Little
Bear Creek, a tributary above station, in sec.32, 1.1 5., R.43 E.
REMARXS.--No regulation.
AVERAGE DISCHARGE.--58 years (water years 1925-82), 114 ft3/s, 82,590 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,730 ft3/s June 15, 1974; maxImum gage height, 3.82 ft Apr. 22, 1936 (from
floodmark); minimum daily discharge, 3 ft3/s Jan. 20, Feb. 1,
1937.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1926-82
1925-82
STANDARD
DEVIAMINIMUM
(CFS)
MONTH
MAXIMUM
(CFS)
MEAN
(CFS)
TION
(CFS)
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
PERIOD
(CONSECU-
TIVE
DAYS)
7.6
8.2
7.3
5.2
4.5
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
11
APRIL
50
MAY
JUNE
138
112
JULY
19
8.1
6.3
AUGUST
SEPTEMBER
ANNUAL
46
160
220
194
136
25
147
186
47
31
1.13
.92
.82
.70
.66
65
33
.51
422
682
171
74
374
402
102
160
116
80
.43
.27
.40
.69
.42
.55
29
37
40
50
43
869
388
38
44
41
30
8.0
8.5
19
16
178
114
1.9
2.9
3.7
3.4
4.7
3
9.3
9.6
10
Ii
12
14
17
120
183
25
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
685
2
50%
907
5
20%
1200
10
25
50
10%
4%
2%
1380
1610
1780
PERIOD
(CONSECU-
100
50
100
5%
2%
1%
7.0
7.2
7.4
7.8
8.4
9.2
10
12
16
6.0
6.2
5.1
5.5
5.7
5.9
6.4
6.7
7.3
8.0
6.5
7.1
8.1
9.0
8.8
10
13
10
3.8
4.2
4.5
4.6
4.3
4.7
4.9
5.1
5.6
6.2
7.2
7.6
8.3
5.1
5.7
6.8
7.0
7.2
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL. IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
TIVE
2
DAYS)
50%
5
20%
10
25
50
100
10%
4%
2%
1%
982
898
805
696
610
495
403
1130
1030
1330
1210
1090
1470
1340
1210
929
776
592
467
1030
839
625
486
1610
1470
1330
1130
899
653
503
1950
3
750
693
7
621
15
540
484
407
336
1
WEIGHTED SKEW =
20
10%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1925-82
DISCHARGE,
1.25
10
100
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1925-82
80%
5
20%
1.1
.24
27
9.3
30
60
90
12.5
27.3
29.4
8.5
1.4
2
50%
1
7
14
3.1
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
-.022
30
50
90
929
799
686
542
435
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1925-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
477
'Os
352
15%
259
20%
187
25%
133
30%
40%
50%
60%
70%
75%
80%
85%
96
60
42
29
21
18
t6
13
90%
11
95%
9.0
70
GRANDE RONDE RIVER BASIN
13331500
MINAM RIVER AT MINAM, OR
LOCATION.--Lat 45'37'12", long 117'43'32, in SWSW sec.29, 1.2 N., 11.41 E., Wallowa County, Hydrologic Unit 17060105, on left bank
2.3 ml downstream from Squaw Creek, 0.3 ml west of Minam, and at nile 0.3.
DRAINAGE AREA.--240 mi2, approximately.
PERIOD OF RECORD.--June 1912 to ilarch 1914, September 1965 to September 1982.
WSP 1317.
Monthly discharge Only for some periods, published in
GAGE.--Water-stage recorder. Datum of gage is 2,540.48 ft National Geodetic Vertical Datum of 1929.
nonrecording gage at approximately same site at different datum.
June 1912 to March 1914,
REMARKS.--No regulation or diversion above station.
AVERAGE DISCHARGE.--18 years, 476 ft3/s, 26.93 in/yr, 344,900 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 6,260 ft/s June 16, 1974, gage height, 6.89 ft; maximum gage height, 7.3 ft
May 28, 1913, datum then in use; minimum discharge, 10 ft3/s Dec. 6, 1972, Jan. 10, 1973, result of freezeup.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIATION
(CFS)
(CFS)
(CFS)
ICES)
65
62
62
60
57
67
235
484
668
173
96
493
604
155
412
504
672
862
215
228
246
287
464
1289
1702
680
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1967-82
1966-82
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
PERIOD
ICONSECUTIVE
DAYS)
28
115
155
116
.29
.74
.72
1.7
2.8
3.8
3
7
.51
4.1
14
131
.53
.46
.39
.27
.39
.55
.40
4.4
8.3
23.0
30.3
30
60
90
1.8
132
182
125
73
2016
3125
1392
257
154
371
61
53
180
99
31
.3)
189
713
468
134
.29
342
666
1
5.1
120
183
2
50%
5
2O
10
10%
25
4%
3190
4260
4970
20
5%
52
57
62
63
69
77
84
94
32
37
23
27
20
42
32
24
48
41
57
53
58
36
50
55
58
135
100
63
68
74
50
2%
100
1%
16
62
67
86
61
75
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1966-82
50
100
2%
1%
PERIOD
(CONSECUTIVE
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
10
25
20%
10%
4%
3650
3420
3140
2760
2420
2000
4260
4020
3680
3210
2700
2190
5040
4820
4400
3760
2990
2360
1620
1750
1870
5
50
2%
100
1%
5860
2750
2570
2350
2060
1
WEIGHTED SKEW =
10%
10
100
DAYS)
2400
5
20%
2.7
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
2
50%
12.1
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1966-82
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
3
.083
7
15
30
1890
1600
1300
60
90
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD )966-82
DISCHARGE,
5%
1860
10%
1350
15%
991
20%
7)3
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
529
30%
417
40%
285
50%
210
60%
156
70%
117
75%
103
80%
85%
90%
95%
91
81
72
61
71
GRANDE RONDE RIVER BASIN
13332500
GRANDE RONDE RIVER AT RONDOWA, OR
LOCATION.--Lat 45°4336", long 1174659", in SWNW
sec.23, 1.3 N., R.40 E., Wallowa County, Hydrologic Unit 17060106, on right bank
at Rondowa, 500 ft downstream from Wallowa River, 13 mi northeast of Elgin, and at mile 81.4.
DRAINAGE AREA.--2,555 mi2.
PERIOD OF RECORD.--October- 1926 to September 1982.
GAGE.--Water-stage recorder.
Datum of gage is 2,281.87 f-I- National Geodetic Vertical Datum of 1929.
REMARKS.--Flo slightly regulated by Wallowa Lake and small reservoirs.
Diversions for irrigation above station, chiefly in vicinity
of La Grande, Enterprise, and Hal Iowa; one transbasin diversion from Sheep Creek in Imnaha River basin for irrigation in Wal Iowa
Valley.
AVERAGE DISCHARGE.--56 years. 2,158 ft3/s, 1,563,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORO.--Maximum discharge, 24,700 ft3/s
Jan. 30, 1965, gage height, 10.93 ft; minimum, 179 ft3/s Aug. 24,
1977.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
1927-82
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIAlION
(CFS)
(CFS)
(CFS)
(CFS)
343
342
358
298
395
1978
641
858
1256
1326
1561
345
269
318
3346
3942
3554
5029
7600
8089
10010
9662
4692
1098
933
2674
4274
5576
4709
1712
589
543
855
3416
2160
611
1498
1965
1791
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1928-82
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
266
.41
491
.57
.68
.64
.59
.45
.36
10.3
16.5
.32
21.5
18.1
151
.41
.54
.36
.28
608
.28
858
845
1055
1215
1540
1795
1914
933
210
PERIOD
ICON-
SECUTIVE
2
5
DAYS)
50%
20%
10%
306
318
269
280
331
291
348
368
398
306
323
353
382
410
472
2.5
3.3
4.8
1
378
3
391
7
408
428
455
5.1
14
6.9
30
60
90
20
83
7080
9650
5
20%
13000
10
10%
15100
25
4%
17700
720
544
100
240
250
258
209
217
223
234
248
190
197
201
271
286
318
348
378
421
1%
314
346
210
223
257
293
327
371
341
281
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD
1927-82
IN
50
100
2%
1%
19500
455
50
2%
2.1
PERIOD
(CONSECUTIVE
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
10
10%
25
4%
50
2%
100
14300
13200
11900
10500
9230
7990
7030
16800
15300
13600
11800
10400
8820
7720
18500
16700
14700
12700
11200
9330
8140
20100
18100
15700
13500
11900
9770
8500
5
20%
1%
21400
9060
8520
7890
7060
6280
5650
5020
1
WEIGHTED SKEW =
426
561
20
5%
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
2
50%
490
524
10
6.6
2.3
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1927-82
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
-.138
3
7
15
30
60
90
12300
11400
10400
9220
8170
7190
6350
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1927-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
7000
10%
5490
15%
4430
20%
3710
25%
3110
30%
2540
40%
1700
50%
1140
60%
811
70%
651
75%
597
80%
552
85%
508
90%
456
95%
388
72
GRANDE RONDE RIVER BASIN
GRANDE RONDE RIVER AT TROY, OR
13333000
LOCATION.--Lat 45'56'47", long 117°26'54", in NENW sec.4, T.5 N., R.43 E., Wallowa County. Hydrologic Unit 17060106, on left bank
500 ft downstream fran bridge at Troy, 600 ft downstream from Wenaha River, and at mile 45.2.
DRAINAGE AREA.--3,275 rn!2.
PERIOD OF RECORD.--August 1944 to September 1982.
Monthly discharge only August 1944, published in WSP 1317.
Datum of gage is 1,585.98 ft National Geodetic Vertical Datum of 1929. Aug. 17, 1944, to Sept. 30,
1949, nonrecording gage at site 500 ft upstremm at datum 10.85 ft lower. Oct. 1, 1949, to Sept. 5, 1963, water-stage recorder at
site 500 ft upstream at datum 1.15 ft higher.
GAGE.--Water-stage recorder.
REMARKS.--Ftow slightly regulated by WaI Iowa Lake and small reservoirs.
Diversions for irrigation above station, chiefly in vicinity
of La Grande, Enterprise, and Wallowa; one trarisbasin diversion from Big Sheep Creek and tributaries in Imnaha River basin for
irrigation In Wal Iowa Valley.
AVERAGE DISCHARGE.--38 years, 3,125 ft3/s, 2,264,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 42,200 ft3/s Dec. 23, 1964, gage height, 11.25 ft; minimum, 344 ft3/s Aug. 19-21,
23, 1977.
STAT I STICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1946-82
1945-82
STANDARD
DEVIAMONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
(CFS)
(CFS)
603
688
685
702
769
888
2257
2368
2159
520
448
2559
3023
6295
6280
7386
11520
10780
13820
11610
MEAN
(CFS)
915
1239
2158
2273
3095
3893
6335
7656
6035
TION
(CFS)
COEFFI-
dENT OF
VARIATION
OF
2.3
873
798
219
140
.25
.18
1136
4912
3125
816
.26
617
634
654
677
707
756
789
833
1110
1
3
7
30
60
6.1
574
20%
8.2
.43
2291
5
50%
14
10.4
16.9
20.4
4951
1375
1190
2
DAYS)
6.1
.48
.36
.33
.35
2496
2112
990
TIVE
2.4
3.3
5.7
.42
.72
.60
.52
90
120
183
16.1
10600
2
5
20%
15200
21500
10
25
50
100
10%
4%
2%
1%
25700
30500
PERIOD
(CONSECU-
100
2%
1%
431
382
443
458
478
499
556
608
670
767
391
475
488
506
526
548
601
644
695
827
527
542
562
582
607
656
691
734
911
403
423
443
504
569
646
706
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
TIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
13900
12700
11400
9940
8650
7720
7020
19500
17100
14800
12500
10900
23100
19800
16700
13700
12000
10700
9600
27400
22900
18600
30600
25100
34600
1
WEIGHTED SKEW =
50
5%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1945-82
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
20
10%
2.1
DISCHARGE,
1.25
10
100
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1945-82
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
SECU-
ANNUAL
RUNOFF
.35
320
519
1544
1363
1612
1855
2251
PERIOD
(CON-
PERCENT
-.141
3
7
15
30
60
90
9740
8800
14900
13100
11600
10300
19800
15700
13700
12100
10700
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1945-82
DISCHARGE, IN CFS, WHICH WAS EQUALED DR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
9480
10%
7650
15%
6380
20%
5410
25%
4570
30%
3750
40%
2560
50%
1740
60%
1220
70%
971
75%
892
80%
834
85%
777
90%
720
95%
652
LOWER COLUMBIA RIVER BASIN
73
WALLA WALLA RIVER BASIN
14010000
SOUTH FORK WALLA WALLA RIVER NEAR MILTON, OR
LOCATION.--Lst 45'49'48", long 118°1O'08', In NENE sec.15, 1.4 N., R.37 E., Umatilla County, Hydrologic Unit 17070102, on right
bunk 1.0 ml dowr,strearn from Elbow Creek, 13 ml southeast of Milton, and at mile 59.1.
DRAINAGE AREA.--63 mi2, approximately.
PERIOD OF RECORD.--February to October 1903, August 1906 to November 1917, May 1931 to September 1982. Monthly discharge only for
some periods, published In WSP 1318. Published as '12 ml above Milton" 1903 and as "above Pacific Power & Light Co.'s intake near
Milton" 1907-10.
GAGE.--Water-stage recorder. Altitude of gage is 2,050 ft, from river-profile map.
Prior to Mar. 23. 1934, water-stage recorder or
nonrecordlng gage at several sites wIthin 1.5 ml of present sIte at various datums.
REMARKS.--N0 regulation or diversion above station.
AVERAGE DISCHARGE.--61 years (water years 1908-17, 1932-82), 178 ft3/s,
38.37 in/yr, 129,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,530 ft3/s Jan. 29, 1965, gage height, 5.60 ft; minimum,
72 ft3/s Feb 14. 1932.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum stage about 6 ft Mar. 31, 1931, present site and datum.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
(CFS)
(CFS)
84
89
93
92
180
245
376
378
102
326
111
399
147
123
110
458
569
484
85
193
143
MEAN
(CFS)
(CFS)
111
19
135
171
34
66
60
175
188
82
151
123
255
177
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1908-82
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
54
213
282
306
206
124
108
107
81
STANDARD
DEVIAlION
1907-82
52
60
86
77
22
.17
.25
.38
.34
.29
.24
5.2
6.3
8.0
8.2
8.8
10.0
.21
13.3
14.4
.28
.37
.17
.13
5.1
.13
5.0
28
.16
(CONSECUlIVE
DAYS)
1
3
7
14
30
60
90
550
802
5
20%
1220
10
10%
1540
25
4%
2000
50
100
2%
1%
2380
PERIOD
(CONSECUlIVE
DAYS)
10
20
10%
5%
98
99
99
89
84
85
81
100
102
103
91
86
92
94
95
97
88
89
90
92
105
100
89
90
82
83
86
83
84
86
87
89
96
50
2%
100
78
78
76
76
79
77
78
79
80
1%
80
81
82
83
86
93
81
83
90
DISCHARGE, IN CPS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
5
10
20%
10%
886
715
580
1090
481
421
533
465
408
365
25
4%
50
100
2%
1%
1380
1010
764
594
516
448
398
1620
1140
1890
1280
840
636
916
676
584
2800
15
627
539
455
392
30
347
60
90
311
1
WEIGHTED SKEW
5
20%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1908-82
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
2
50%
100
MAGNITUDE AND PROBABILITY Off INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1908-82
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
105
107
117
120
183
9.7
5.8
14
14
PERIOD
.357
3
7
284
373
336
841
661
551
476
421
501
441
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1908-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
385
10%
310
15%
269
20%
237
25%
213
30%
193
40%
161
50%
141
60%
126
70%
116
75%
111
80%
107
85%
102
90%
95%
98
92
74
WALLA WALLA RIVER BASIN
14010500
SOUTH FORK WALLA WALLA RIVER BELOW PACIFIC POWER B LIGHT CO.'S PLANT, NEAR MILTON, OR
LOCATION.--Lat 4553'OO", long 118°16'25", iii SENW sec.26, 1.5 N., R.36 E., Urnatilla County, Hydrologic Unit 17070102, 800 ft
downstream from Pacific Power B Light Co. powerplant, 1.2 ni upstream from intake of M1IIon City powerplant, 2 ml upstream from
confluence with North Fork, and 5.8 ml southeast of Milton.
DRAINAGE AREA.--80 mi2, approximately.
At site 1903-6, 1929-38, 81 mi2, approximately.
PERIOD OF RECORD.--October 1904 to My 1906, January 1070 to September 1945.
GAGE.--Water-stage recorder-. Datum of gage is 1,dDO.3O ft National Geodetic Vertical Datum of 1929 (Pacific Power B Light Co.
benchmark).
Nov. 1, 1903, to May 29, 1906. staff gage and Dec. 18, 1929, to May 26, 1938, water-stage recorder at several sites
within 1.2 ml of described site at various datums.
Since 1905, some diurnal fluctuation caused by
REMARKS.--Sma?I diversions for irrigation of about 300 acres above station.
powerplant above station.
COOPERATION.--Records for 1929-40, furnished by the Oregon Water Resources Department.
AVERAGE DISCHARGE.--16 years (water years 1905, 1931-45), 169 ft3/s.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge not determined, probably occurred during floods of May 30, 31, 1906, or Mar. 31,
1931; maximum daily dIscharge, 3,000 ft3/s (estimated) May 30, 1906, and Mar. 31, 1931; minimum, 1 ft3/s (regulated) June 23,
1940; minimum daily, 57 ftu/s July 22, 1930.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
iOMTH
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIATION
(CFSI
(CFSI
)CFS)
(CFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD
1905-45
1904-45
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
PERIOD
(CONSECU-
TIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
81
180
101
239
126
160
158
169
237
316
289
180
23
39
63
45
45
56
96
90
64
.23
85
100
92
335
.39
.29
97
283
290
350
547
447
349
78
74
75
143
119
114
104
19
89
11
90
11
.18
.13
.12
129
230
169
26
.16
105
149
152
123
5.0
6.2
7.9
7.8
8.4
11.7
15.6
14.3
8.9
5.2
4.4
4.5
.31
.27
.24
.30
.31
.36
7
14
30
60
90
120
86
87
89
183
103
2
5
50%
20%
10
10%
25
4%
91
759
WEIGHTED SKEW =
1090
1330
20
50
100
10%
5%
2%
1%
72
73
75
77
78
67
69
63
66
69
74
75
71
80
81
76
78
74
75
83
92
80
87
83
5
71
72
77
MAGNiTUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1904-45
PERIOD
(CONSECUTIVE
100
50
2%
5
DAYS)
535
10
20%
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
2
50%
82
82
83
84
1
3
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1904-45
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
50
20%
10%
25
4%
1040
817
663
1450
1040
788
631
515
431
385
2220
1400
952
726
572
466
415
2
10
5
50
2%
100
1%
1640
.124
1
637
3
561
7
15
486
423
30
60
90
373
332
300
551
464
398
356
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1904-45
DISCMARGE. IN CFS. WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
386
10%
314
15%
270
208
235
25%
206
30%
183
40%
I
48
50%
128
60%
113
70%
101
75%
80%
85%
90%
95%
97
93
90
86
80
l;LL
14010800
75
LALLA RIVER EASIN
NORTH FORK WALLA WALLA RIVER NEAR MILTON-FREEWATER, OR
LOCATION.--Lat 45°53'05", long 11811'O6", in SENW sec.28, 1.5 N., R.37 E., Umatilla County, Hydrologic Unit 17070102, on right
bank 2.8 ml downstream from Little Meadow Canyon, 8.9 ni southeast of Milton-Freewater, and at mile 5.5.
DRAINAGE AREA.--34.4 mi2.
PERIOD OF RECORO.--October- 1969 to September 1982.
GAGE.--Water-stage recorder.
Altitude of gaga is 1,940 ft, from topographic map.
REMARKS.--N0 regulation or diversion above station.
AVERAGE DISCHARGE.--13 years, 54.3 ft3/s, 21.44 in/yr. 39,340 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,040 ft3/s Jan. 25, 1975, gage height, 5.58 ft. from rating curve extended above
400 ft3/s on basis of discharge measurement at gage height 5.67 ft and slope-araa measurement at gage height 6.30 ft; minimum, 3.9
ft3/s July 19-21, 1979.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
ICES)
(CFSI
MEAN
STANDARD
DEVIATION
(CFS)
(CFS)
1970-82
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1971-82
COEFEI-
PERCENT
OF
ANNUAL
RUNOFF
dENT OF
VARIATION
PERIOD
(CONSECUlIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
6.3
8.3
2.5
.26
1.4
4.0
9.5
56
.92
.75
.52
.49
.54
.35
.55
41
.91
86
26
24
15
181
43
26
236
222
198
62
82
85
96
47
12
170
175
119
102
11
136
45
21
13
11
55
6.7
5.8
4.7
AUGUST
SEPTEMBER
ANNUAL
9.4
16
52
42
8.3
7.7
11
10
95
22
51
41
54
.36
1.8
1.7
.21
1.3
.22
1.2
349
2
5
20%
10
25
10%
4%
q6
536
50
2%
100
2%
1%
14
6.9
7.4
7.9
8.7
120
183
4.6
4.6
4.8
4.9
5.2
5.2
5.3
5.5
5.7
6.1
6.6
7.3
6.4
5.5
6.5
6.6
4.2
4.2
4.3
5.9
4.5
4.7
5.0
5.4
6.6
8.8
6.1
8.1
5.1
5.5
9.9
13
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1970-82
PERIOD
(CONSECUTIVE
DAYS)
100
11
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
10
25
50
100
50%
20%
10%
4%
2%
1%
549
360
288
214
645
496
402
318
244
171
195
158
181
90%
95%
1180
393
338
278
223
1
WEIGHTED SKEW =
50
5%
30
60
90
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
20
1
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1970-82
1.25
80%
10
10%
100
.35
19
5
20%
7
18.2
4.7
2
50%
3
12.5
12.9
14.6
15.6
6.8
2.0
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
-.285
3
7
15
30
60
90
161
128
116
441
761
555
445
344
276
219
207
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1970-82
DISCHARGE,
5%
202
10%
147
15%
113
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
20%
25%
92
74
30%
40%
50%
60%
70%
39
26
16
ii
75%
9.6
80%
8.6
85%
7.9
7.2
6.4
76
WALLA WALLA RIVER BASIN
NORTH FORK WALLA WALLA RIVER NEAR MILTON, OR
14011000
LOCATION.--Lat 45°54'OS", long 118°16'55', in NENW* sec.23, T.5 N., R.36 E., linatilla County, Hydrologic Unit 17070102, on right
bank 5 ml southeast of Milton, and at mile 1.2.
DRAINAGE AREA.--43.8 mi2.
PERIOD OF RECORD.--January 1930 to October 1969.
Monthly discharge only for some periods, published in WSP 1318.
GAGE.--Water-stage recorder.
Datum of gage is 1,467 ft National Geodetic Vertical Datum of 1929 (levels by U.S.G.S. National Mapping
Division).
Prior to Oct. 23, 1948, at several sites 0.7 mi downstream at various datunis. Oct. 23, 1948 to Mar. 4. 1968, at site
200 ft downstream at same datum.
REMARKS.--No regulation.
Diversions above station for Irrigation.
AVERAGE DISCHARGE.--39 years, 47.3 ft3/s, 34,270 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,050 ft3/s Jan. 30, 1965, gage height, 8.05 ft; minimum, 0.90 ft3/s Aug. 17,
1955, Aug. 28, 29, 1961.
STAT I STICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
P4ONTH
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIATION
(CFS)
(CFS)
ICFS)
ICFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1932-69
1931-69
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNDFF
PERIOD
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
5.2
7.2
9.0
6.9
13
25
24
9.6
4.4
2.3
38
107
195
171
143
230
204
249
170
82
41
7.9
3.5
5.3
7.8
26
25
38
39
49
35
120
97
28
1.9
2.1
7.6
20
42
38
34
11
27
52
57
66
4.7
9.1
10.0
11.6
14.4
21.1
.51
17.1
30
60
90
120
7.2
183
1.4
.85
.77
.40
3.8
.71
6.0
47
87
.70
.76
.82
.66
.52
.47
.32
1.9
80%
309
5
50%
20%
492
814
10
10%
1080
25
4%
1470
50
2%
4.2
3.1
5.4
100
1%
1.2
1.0
.8
1.3
1.5
1.7
1.9
1.1
1.0
1.1
1.4
2.2
2.6
3.5
5.8
2.0
2.3
4.0
7.2
Ii
1.3
1.5
1.8
3.1
4.9
1.6
1.7
1.9
2.7
4.1
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1931-69
IN
PERIOD
(CONSECUTIVE
DAYS)
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL. IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
100
20%
10%
25
4%
50
50%
2%
1%
368
596
448
318
243
811
1180
600
406
290
222
867
1530
1140
180
155
202
695
410
284
216
173
185
10
1800
1
WEIGHTED SKEW =
2.0
2.2
2.6
50
2%
.6
.9
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
10%
1.5
1.6
1.8
2.1
2.2
2.5
2.7
2.9
3.4
1
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1931-69
1.25
5
20%
3
7
14
20
5%
10
2
50%
1.4
.29
14
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.282
292
223
3
7
60
180
150
127
90
110
15
3D
194
160
139
554
356
258
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1931-69
DISCHARGE, IN CFS, WHICH WAS EQUALED DR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
169
10%
124
15%
20%
25%
30%
40%
50%
99
81
67
54
35
23
60%
14
70%
8.4
75%
6.8
80%
5.8
85%
4.6
90%
3.
95%
2.6
77
UMATILLA RIVER BASIN
14020000
UMATILLA RIVER ABOVE MEACHAM CREEK, NEAR GIBBON, OR
LOCATION.--Lat 4543'l1', long ll8l9'20", in SESW
sec.21, T.3 N., R.36 E., lknatllla County, Hydrologic Unit 17070103. Umatilla
Indian Reservation, on right bank 0.8 ml downstream from Ryan Creek, 2.2 mi upstream from Meacham Creek, 2.5 ml northeast of
Gibbom, and at mile 83.1.
ni2.
DRAINAGE AREA.--131
PERIOD OF RECORD.--April
1933 to September 1982.
GAGE.--Water-stage recorder. Datum of gage is 1,854.81 ft National Geodetic Vertical Datum of 1929.
ml downstream at datum 43.94 ft lower.
Prior to June 27, 1939, at site
1
REMARKS.--No regulation or diversion above station.
AVERAGE DISCHARGE.--49 years, 227 ft3/s, 23.53 in/yr, 164,500 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum dIscharge, 5,930 ft3/s Jan. 25, 1975. gage heIght, 9.18 ft, from rating curve extended above
3,500 ft3/s; maximum gage height, 9.50 ft Jan. 29, 1965; minimum discharge, 16 ft3/s Nov. 9, 1965, momentary regulation from
unknown source.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
(CFS)
(CFS)
39
MEAN
STANDARD
DEVIATION
(CFS>
59
40
44
46
405
716
656
125
81
250
267
72
910
989
885
175
163
170
149
177
162
67
54
40
25
316
370
540
450
1135
591
37
35
63
82
197
66
48
48
114
415
227
110
.42
.64
.70
205
114
59
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1935-82
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
(CFS)
169
189
1934-82
19
6.1
8.3
PERIOD
(CONSECUlIVE
DAYS)
2.2
4.6
3
9.1
7
5
20%
2000
2910
14
30
60
90
120
183
51
71
.26
1%
29
30
31
27
28
29
32
31
32
34
41
34
35
37
39
45
41
32
32
33
36
38
39
40
41
43
50
36
37
38
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1934-82
50
100
4%
2%
1%
PERIOD
ICONSECUlIVE
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
5
10%
25
4%
50
2%
100
20%
2410
3010
2240
1680
3870
2750
2020
1220
1350
1070
839
728
4600
3150
2280
1440
1140
878
5390
3580
2550
1520
1200
10
1%
5970
1640
1340
1040
852
687
570
502
1
WEIGHTED SKEW =
100
2%
100
25
5210
40
42
43
45
56
50
20
5%
1.8
1.7
10%
4480
34
35
35
37
38
9.8
10
3570
37
37
38
39
11.5
13.5
19.7
16.4
DAYS>
1400
10%
.54
.40
.33
.46
.58
.28
.13
.17
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
5
20%
.61
7.2
2.4
10
2
50%
42
42
42
43
44
46
48
I
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1934-82
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL. IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.221
3
7
15
30
60
90
1860
1420
1090
865
706
617
963
773
573
760
911
787
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1934-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
756
10%
556
15%
441
20%
366
25%
306
30%
252
40%
175
50%
123
60%
70%
75%
80%
85%
90%
95%
78
58
53
50
48
46
42
UMATILLA RIVER BASIN
78
t4021000
UMATILLA RIVER AT PENDLETON, OR
LOCATION.--Lat 454O'2O", long 118°47'30', in NWNE sc.1O, T.2 N., R.32 E., IJ'natilla County, Hydrologic Unit 17070103, on wingwall
0.3 ml downstream fran Main Street bridge at Pendleton, 1.5 ml downstream from Wildhorse Creek, 2.8 ml upstream from McKay Creek,
and at mile 55.2.
DRAINAGE AREA.--637 mi2.
PERIOD OF RECORD.--February 1891 to July 1892, May 1903 to June 1905 (gage heights and discharge measurements only June to December
1904). October 1934 to September 19R2. Monthly discharge only February 1891 to July 1892, published in WSP 1318.
GAGE.--Wmter-stage recorder. Datum of gaga is 1,054.3 ft National Geodetic Verticul Datum of 1929 (levels by Oregon Department of
Transportation).
Apr. 24 to Aug. 26. 1959, nonrecording gage and Aug. 27, 1959, to Feb. 4, 1955, water-stage recorder at 8th
Street Bridge 0.7 ni upstream at 1,067.01 ft NtionaI Geodetic Vertical Dtun of 1929. Feb. 5 to Nov. 18, 1965, nonrecording gage
at Main Street Bridge 1,600 ft upstream at different datum.
Nov. 19, 1965, to Sept. 30, 1969, water-stage recorder at 8th Street
Nov. 19. 1965, to Mar. 28, 1967, and I'lar. 29,
Bridge 0.7 mi upstream at 1,067.60 ft National Geodetic Vertical Datum of 1929.
See WSP 1738 for history of changes prior to
1967, to Sept. 30, 1969 at 1,064.02 ft National Geodetic Vertical Datum of 1929.
Apr. 24. 1959.
REMARKS.--No regulation.
Many diversions for irrigation above station.
AVERAGE DISCHARGE.--48 years (water years 1935-821, 503 ft3/s, 354,400 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maxirnum discharge, 15,500 ft3/s Jan. 30, 1965, gage height, 9.40 ft, datum then in use; minimum, 10
ft3/s July 13-16, 1940.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge, 17,000 ft3/s Dec. 14, 1882 (date and discharge from data furnished by Corps of
Engineers).
Flood of May 30, 31, 1906, reached a stage of 11.0 ft, 1934-58 sIte and datum, but before channel was improved,
discharge, 15,500 ft3/s, estimated by Corps of Engineers.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIATION
(CFS)
(CFS)
(CFS)
(CFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1936-82
1935-82
PERIOD
(CONSECUTIVE
PERCENT
COEFFI-
dENT OF
OF
VARIATION
ANNUAL
RUNOFF
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
37
246
845
1786
74
227
658
843
1003
198
2088
2375
2672
2347
2519
64
892
19
17
189
76
85
45
12
12
.31
23
190
934
503
157
.31
52
69
70
107
410
299
42
456
477
455
465
459
458
581
1321
876
319
76
10.9
13.9
16.6
21.8
14.5
5.3
.36
.52
.62
.48
36
30
60
90
120
183
80%
3430
5
50%
20%
5350
WEIGHTED SKEW =
8510
10
10%
10900
25
4%
14400
50
2%
17300
10
log
20
50
100
5%
2%
1%
11
21
17
15
13
22
24
25
27
30
18
16
13
11
20
22
18
19
15
16
13
15
23
21
19
17
26
23
27
33
20
24
29
39
22
27
30
36
54
34
40
66
46
18
35
.6
.7
.28
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
5
20%
1.2
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1935-82
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1935-82
1.25
2
50%
27
29
30
32
33
38
43
50
95
1
3
7
14
9.6
.54
.46
199
38
1.2
3.7
.58
.80
.78
.72
182
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
IN
PERIOD
ICONSECUTIVE
DAYS)
100
18
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEOANCE PROBABILITY. IN PERCENT
25
4%
50
2%
100
10500
7550
5430
3710
12700
8750
14900
10000
7030
4390
3130
2410
2070
10
2
5
50%
20%
10%
4240
3420
2610
2070
6480
4940
3670
2770
2190
8200
6040
4420
3200
2470
1980
1710
1%
20400
.167
3
7
15
1680
1380
1200
30
60
90
1780
1540
2770
2180
1880
6210
4050
2960
2310
1990
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1935-82
DISCHARGE,
5%
1840
10%
1330
15%
1050
20%
861
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
709
30%
577
40%
370
50%
224
60%
116
70%
75%
80%
85%
90%
95%
70
61
53
45
39
31
79
UMATILLA RIVER BASIN
14022000
UMATILLA RIVER ABOVE MCKAY CREEK, NEAR PENDLETON, OR
LOCATION.--Lat 45'4O'20', long 118°5O'OO", in NE
from McKay Creek and 2 ml west of Pendleton.
sec.8, 1.2 N., R.32 E., Lhnatilla County, Hydrologic Unit 17070103, 0.2 ml upstream
DRAINAGE AREA.--700 mi2, approximately.
PERIOD OF RECORD.--January 1923 to September 1931.
GAGE.--Water-stage recorder.
Datum of gage Is 997.68 ft National Geodetic Vertical Datum of 1929.
May 8 to Oct. 12, 1921, staff
gage, and Oct. 13, 1921, to Mar. 3, 1923, water-stage recorder, 200 ft downstream at different datum.
Mar. 6, 1923, to Sept. 30,
1930, at about described datum, and Oct. 1, 1930, to Mar. 31, 1931, at datum about 2.0 ft higher.
REMARXS.--Many diversions for irrigation above station.
Slight regulation caused by mills upstream.
AVERAGE DISCHARGE.--11 years (water years 1924-34), 451 ft3/s.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 13,500 ft3/s lestirnatedl, Apr.
height, 1.87 ft.
1,
1931; minimum, 7 ft3/s Aug. 14, 1924, gage
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
(CFS)
ICES)
47
57
79
85
MEAN
886
164
1532
1494
510
452
2470
2022
104
1680
631
STANDARD
DEVIAlION
ICFSI
451
1466
1924-34
119
293
413
554
767
1125
1199
660
223
406
280
433
416
497
516
494
dENT OF
ANNUAL
RUNOFF
1.19
1.39
.54
14.1
.44
20.6
22.0
14
32
44
24
27
129
46
29
293
746
453
154
.34
179
5.5
PERIOD
(CONSECUlIVE
DAYS)
1.8
5.4
7.6
10.3
.68
.77
19
77
OF
VAR!ATION
.43
.75
.80
.43
.23
.63
50
23
PERCENT
COEFFI-
(CFSI
100
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1925-34
12.1
4.1
2
5
50%
20%
10
10%
25
4%
5190
WEIGHTED SKEW =
9050
20
5%
1
18
15
13
11
19
16
14
7
20
22
17
14
18
15
16
13
14
14
30
60
24
28
17
15
90
33
120
183
38
20
23
27
33
50
20
25
32
45
23
32
44
66
100
50
2%
1%
18
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1924-34
50
100
2%
14
PERIOD
(CONSECUlIVE
DAYS)
3470
10%
.8
.4
.8
DISCHARGE, IN CES, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
10
5
20%
3
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1924-34
80%
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
50%
20%
10%
3640
3110
2590
1970
5110
4230
3350
2560
1470
1200
1080
1930
1560
1370
6440
5210
3890
2960
2290
10
25
48
50
100
2%
1%
10300
.310
3
7
15
30
60
90
1850
1520
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1924-34
DISCHARGE,
5%
1740
10%
1250
15%
950
20%
787
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
636
30%
502
40%
312
50%
155
60%
70%
75%
80%
85%
90%
958
91
50
51
43
34
27
22
80
UMATILLA RIVER BASIN
14022500
MCKAY CREEK NEAR PILOT ROCK, OR
LOCATION.--Lat 4592'57", long 118'46'24', in NWSE sec.23, T.1 N., R.32 E., l.kiiatil Ia County, Hydrologic Unit 17070103, on left bank
500 ft upstream from county road bridge, 5.5 mi northeast of Pilot Rock, and at mile 8.2.
DRAINAGE AREA.--180 mi2.
PERIOD OF RECORD.--May to August 1921, October 1926 to June 1928, December 1928 to July 1929, October 1929 to September 1982.
Monthly discharge only for some periods, published in WSP 1318.
GAGE.--Water-stage recorder. Datum of gage is 1,343.60 ft National Geodetic Vertical Datum of 1929.
See WSP 1318 or 1738 for
history of changes prior to Apr. 9, 1941. Apr. 9, 1941, to July 24, 1963, at site 1,000 ft downstream at datum 7.92 ft lower.
REMARKS.--No regulation.
Many small diversions for irrigation above station.
AVERAGE DISCHARGE.--54 years (water years 1927, 1930-82), 101 ft3/s, 73,170 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 7,400 ft3/s Jan. 30, 1965, gage height, 8.40 ft; no flow at times.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
57
42
ANNUAL
27
0.0
97
.5
257
460
716
502
757
782
500
3.8
5.0
11
8.4
1.0
0.0
0.0
0.0
STANDARD
DEVIAlION
MEAN
(CFS)
(CFSI
7.2
192
261
278
121
37
4.6
188
2.32
1.33
.92
53
109
140
113
130
135
97
46
7.1
161
173
45
3.7
28
COEFFI- PERCENT
CIENT OF
OF
ANNUAL
VARIATION
RUNOFF
17
40
119
.7
.9
1.8
4.1
101
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1928-82
1927-82
.87
.59
.50
.49
.80
1.26
1.55
1.27
2.25
40
PERIOD
(CONSECUlIVE
DAYS)
2
5
20%
10
10%
25
4%
1350
2380
3210
4440
54O
50
2%
100
1%
.3
.1
.1
0.0
3
.1
.1
.1
0.0
0.0
7
.3
.3
.1
.1
.1
.1
0.0
0.0
0.0
14
.4
.2
.1
.1
.1
.1
15.7
30
.1
.1
.1
60
90
.2
.3
.1
21.3
22.7
9.9
3.0
.4
.6
1
.1
.1
1.0
1.5
.4
.5
.1
.1
.4
.2
.3
.1
.1
7.0
2.5
1.4
.8
.4
.3
120
183
.2
.3
.1
.1
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1927-82
PERIOD
(CONSECUlIVE
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
50%
20%
10%
1040
1700
1330
2190
25
4%
50
2%
100
2880
2300
3440
2790
1530
1040
731
1800
1180
4030
3330
2080
1320
868
635
525
10
1%
6630
1
WEIGHTED SKEW
10%
1
DAYS)
775
20
5%
10
.4
.39
50
2%
5
20(
.6
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
2
50%
3.3
9.7
13.2
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1927-82
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
.071
829
630
477
382
313
268
3
7
15
30
60
90
958
597
535
430
364
1720
1200
846
627
494
415
802
600
498
559
467
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1927-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
434
15%
302
225
20%
172
25%
134
30%
103
40%
50%
58
25
60%
9.2
70%
3.6
75%
2.2
80%
1.2
85%
.6
90%
.2
95%
0.0
UMATILLA RIVER BASIN
81
BIRCH CREEK AT RIETH, OR
14025000
LOCATION.--Lat 45°39'lO", long 118°52'45", in SE
sec.13. T.2 N., R.31 E., tknetilla County. Hydrologic Unit 17070103, on right bank
600 ft downstream from road bridge, 0.3 ci southwest of Rieth, and at mile 0.2.
DRAINAGE AREA.--291 mi2.
PERIOD OF RECORD.--May to August 1921, March to July 1922, April to September 1923, April to September 1927, January to June 1928,
November 1928 to August 1929. October 1929 to September 1976.
Monthly discharge only for some periods, published in WSP 1318.
GAGE.--Water-stage recorder. Datum of gage is 951.04 ft National Geodetic Vertical Datum of 1929.
changes prior to July 24, 1957.
REMARKS.--No regulation.
See WSP 1738 for history of
Many diversions for irrigation above station.
AVERAGE DISCHARGE.--47 years (water years 1930-76), 48.9 ft3/s, 35,430 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,200 ft3/s Jan. 30, 1965,
gage height, 6.40 ft; no flow at times.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
1Or1TH
OCTOBER
NOVEMBER
DECEMBER
FEBRUARY
MARCH
APRIL
MAY
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIATION
(CFS)
(CFS)
(CFS)
(CFS)
0.0
0.0
0.0
12
18
3.3
.1
JUNE
JULY
AUGUST
172
11
15
19
44
79
106
48
58
61
155
76
88
33
97
25
161
27
109
2.14
1.28
1.08
.74
.57
.49
.91
1.31
1.6
4.2
.3
.7
.8
5.4
9.5
2.60
2.67
2.93
2.0
49
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1931-76
COEFFI- PERCENT
CIENT Of
OF
VARIANNUAL
ATION
RUNOFF
7.6
3.6
268
355
315
434
0.0
0.0
0.0
0.0
SEPTEMBER
ANNUAL
48
96
1930-76
26
PERIOD
(CONSECUlIVE
DAYS)
293
2
5
20%
536
WEIGHTED SKEW =
976
10
10%
1330
10%
50
2%
1
0.0
0.0
.1
.1
0.0
0.0
.1
0.0
0.0
0.0
100
1%
7
.1
.1
30
60
.1
.1
.1
.1
0.0
0.0
0.0
0.0
.1
.1
.1
.1
.1
90
.1
.1
.1
.2
.1
.1
.1
.1
.8
.3
.1
.1
.1
16.4
120
.2
.5
4.3
183
3.3
0.0
0.0
0.0
0.0
0.0
.1
.1
.3
.1
.1
.54
100
25
50
100
2%
1%
2290
20
5%
10
3
-
4%
1850
5
20%
.6
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1930-76
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
2
50%
2.5
7.5
13.3
18.0
26.3
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1930-76
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
PERIOD
(CONSECUTIVE
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
25
4%
50
100
2%
1%
1210
222
906
710
570
436
334
262
188
223
261
1450
1070
832
608
439
337
287
1710
1240
948
680
478
364
309
2
5
50%
20%
10%
692
559
457
357
10
2780
-.029
1
412
3
351
7
294
238
192
15
30
60
90
281
152
128
914
719
535
397
307
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1930-76
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
216
10%
752
15%
113
20%
25%
30%
40%
50%
87
66
48
23
13
60%
3.1
70%
.3
75%
.2
80%
.1
85%
.1
90%
0.0
95%
0.0
82
UMATILLA RIVER BASIN
14026000
UMATILLA RIVER AT YOAKUM, OR
LOCATION.--Lat 45"40'38", long 119"02'09", in SWSW sec.2, 1.2 N., R.30 E., lJmatilla County, Hydrologic Unit 17070103, at left bank
on downstream side of highway bridge, 0.5 ml northeast of Yoakum, 2.5 mj downstream from abandoned Furnish Reservoir, 12.0 ml
downstream from Birch Creek, and at mile 37.7.
DRAINAGE AREA.--1.280 mi2, approximately.
PERIOD OF RECORD.--May 1903 to September 1982.
1934 are equivalent.
Records published as "above Furnish Reservoir, near Yoakum" October 1916 to September
GAGE.--Water-stage recorder. Datum of gage is 768.21 ft National Geodetic Vertical Datum of 1929.
of changes prior to Oct. 21, 1948.
See WSP 1318 or 1738 for history
REMARKS.--Siight regulation by Furnish Reservoir 1910-34, capacity, 3,900 acre-ft prior to filling with silt.
extent since 1927 by Mckay Reservoir.
Many diversions for irrigation above station.
Flow regulated to some
AVERAGE DISCHARGE.--79 years, 675 ft3/s, 489,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 20,000 ft3/s May 30, 1906, gage height, about 15.0 ft. site and datum then in use,
frau floodmarks, from rating curve extended above 6,600 ft3/s; minimum, 12 ft/s Aug. 10-12, 1908, Aug. 4, 1910.
STATISTICAL SUMMARIES (BEFORE THE CONSTRUCTION OF MCKAY RESERVOIR)
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
MINIMUM
MAXIMUM
(CFS)
(CFS)
40
58
(CFS>
107
224
827
1362
123
2761
772
273
450
2878
1154
1640
JULY
AUGUST
20
3581
4636
4786
1622
255
19
109
SEPTEMBER
30
340
ANNUAL
MEAN
843
230
48
STANDARD
DEVIATION
(CFS)
91
210
580
425
621
785
828
2177
1266
411
COEFFI-
dENT OF
VARIATION
50
263
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1905-26
1904-26
.55
.80
.73
.80
.68
.50
.49
1074
1027
413
.81
60
22
1.00
.70
.54
92
85
40
49
16
.31
1140
707
242
.34
PERIOD
PERCENT
OF
ANNUAL
RUNOFF
(CONSECUTIVE
DAYS)
1.1
1
3.1
3
80%
4150
5
50%
20%
6470
10100
10
10%
12800
25
4%
50
2%
10
10%
25
26
18
19
15
13
16
14
14
16
7
27
28
20
17
14
21
30
31
18
20
60
90
37
44
23
29
120
183
54
102
35
42
72
50
2%
100
1%
18
26
23
31
29
34
53
37
61
1.0
.5
.6
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1904-26
PERIOD
(CONSECUlIVE
DAYS)
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
10
50%
20%
10%
5790
4950
4160
3340
2690
2120
1840
8990
7260
5670
4480
3710
2970
2500
11400
25
4%
50
100
2%
1%
16500
1
WEIGHTED SKEW =
5
20%
6.8
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
20
5%
2
50%
9.1
13.5
19.2
25.5
14.8
4.8
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1904-26
1.25
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.038
3
7
15
30
60
90
8830
6570
5100
4350
3530
2920
14700
10900
7600
5770
5110
4230
3440
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1904-26
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
2970
10%
2060
15%
1510
20%
1160
25%
889
30%
65
40%
415
50%
241
60%
134
70%
75%
80%
85%
90%
95%
87
68
56
46
38
28
83
UMATILLA RIVER BASIN
14026000
IJMATILLA RIVER AT YOAKIJM, DR--Continued
STATISTICAL SUMMARIES (AFTER THE COMPLETION OF MCKAY RESERVOIR)
MONTHLY AND ANNUAL MEAN DISCHARGES
1928-82
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1929-82
STAN-
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MINIMUM
MAXIMUM
(CFS)
(CFS)
44
59
76
82
115
MAY
JUNE
413
358
256
244
JULY
AUGUST
211
123
MARCH
APRIL
SEPTEMBER
ANNUAL
455
1539
2054
2284
3057
3654
3334
3445
COEFFI-
PERCENT
DEVIA-
C lENT OF
MEAN
TION
VARI-
(CFS)
(CFS)
ATION
97
265
628
755
956
1249
22
456
416
305
1661
1072
485
352
304
163
248
1237
664
1220
DARD
OF
ANNUAL
RUNOFF
.74
.97
.82
.74
.60
.50
72
256
512
559
573
627
678
600
195
64
74
75
218
.33
2
5
10
20
50
100
DAYS)
50%
20%
10%
5%
2%
1%
47
27
28
30
23
23
25
26
18
19
16
16
17
18
37
48
66
88
143
1.2
3
7
48
14
54
33
35
36
38
1
30
60
62
83
44
58
90
13.4
120
183
117
156
81
109
223
168
6.1
4.4
2
50%
5
20%
31
31
41
56
73
125
20
21
25
34
45
58
22
30
39
50
95
106
3.8
2.0
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1928-82
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
51
12.0
15.6
20.8
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
lIVE
3.3
7.9
9.5
.41
.56
.40
.18
.24
.46
PERIOD
ICONSECU-
10
25
50
100
10%
4%
2%
1%
IN CFS. FOR INDICATED RECURRENCE
INTERVAL, (N YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE,
PERIOD
(CONSECU-
WEIGHTED SKEW =
lIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
7110
8890
56)0
69)0
15700
11800
4350
3420
2740
2240
7580
5160
4070
90
1450
1920
5290
3990
3180
2580
2190
11400
8720
6560
4680
3710
2940
2470
13400
10200
60
4750
3880
3050
2500
2000
1660
8650
5630
4420
3400
2810
3
7
15
30
3)90
2650
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1928-82
DISCHARGE, IN CFS. WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
2300
10%
(640
5%
1280
20%
1020
25%
819
30%
651
40%
454
50%
376
60%
316
70%
248
75%
202
80%
146
85%
103
90%
95%
79
58
UMATILLA RIVER BASIN
BUTTER CREEK NEAR PINE CITY, OR
14032000
LOCATION.--Lat 45°32'48", long 11918'14", in SESW, sec.22. T.1 N., R.28 E., Morrow County, Hydrologic Unit 17070103. on right bank
0.3 mi downstream from Mattlock Canyon, 6.0 ml southeast of Pine City, 15 mi southwest of Echo, and at mile 28.4.
DRAINAGE AREA.--29i mi2.
PERIOD OF RECORD.--April to June 1928, November 1928 to June 1929, October 1929 to September 1930, January 1931 to September 1932,
Prior to October
February to June 1933, October 1933 to September 1941, January to June 1942, October 1942 to September 1982.
1945, monthly discharge only, published in WSP 1318.
GAGE.--Water-stage recorder. Altitude of gage is 1,400 ft, by barometer.
1944, to Sept. 6, 1949, at datum 1.0 ft higher.
Prior to Oct.
1944, at datum 1.1 ft higher and Oct. 1,
1,
REMARKS.--No regulation. Several small diversions for irrigatIon above station. Water is diverted into headwaters of Butter Creek
from Fivemile Creek, a tributary of Camas Creek In John Day River basin, for irrigation below station.
AVERAGE DISCHARGE.--50 years (water years 1930, i932, 1934-41, 1943-82), 26.4 ft3/s, 19,130 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3,800 ft3/s Feb. 21, 1949, gage height, 12.4 ft, present datum, from floodmark,
from rating curve extended above 440 ft3/s on basis of computation of peak flow over dam; no flow at times.
STAT I STICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
0.0
0.0
0.0
0.0
3.0
7.8
4.5
ANNUAL
MEAN
(CFS)
6.8
48
142
259
148
151
148
.9
128
0.0
0.0
0.0
0.0
54
5.1
64
STANDARD
DEVIATION
(CFS)
1.9
.91
.7
6.9
22
36
50
65
73
45
8.6
1.24
1.38
1.28
2.2
7.0
31
46
41
36
.81
.54
34
30
.47
.66
.83
1.15
1.55
1.50
11
2.7
5.1
.7
3.i
1.1
6.7
.9
1.4
26
PERIOD
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
2.1
14
13
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1932-82
1930-82
22.9
14.0
4.3
2
5
50%
20%
10
25
10%
4%
50
2%
310
578
830
1260
1670
20
10%
5%
50
2%
100
1%
.4
.4
.1
0.0
.1
.1
0.0
0.0
7
14
.4
4
.1
.1
.1
0.0
0.0
0.0
.1
.1
.1
.1
30
.5
.6
.8
1.4
.2
.1
.1
.1
0.0
0.0
0.0
0.0
0.0
.2
.1
.1
.1
.1
.3
.5
.1
.1
.1
.1
.2
.1
.1
.1
3.8
1.4
.6
.3
.1
.1
.9
LOW-FLOW STATISTICS UNCERTAIN DUE TO EXCESSIVE
ZERO EVENTS.
NOTE:
.2
.3
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1930-82
PERIOD
(CONSECUTIVE
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
50%
20%
10%
207
376
302
237
425
25
4%
50
2%
100
833
632
437
1130
1500
1070
654
395
269
212
10
1%
2i90
1
WEIGHTED SKEW =
10
3
DAYS)
1A2
5
20%
120
183
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
2
50%
60
90
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1930-82
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
1
11.3
15.8
20.5
.56
15
(CONSECUTIVE
DAYS)
.544
3
15
169
138
114
30
94
60
90
78
66
7
184
145
120
103
541
317
233
830
540
346
244
297
217
175
152
178
146
126
194
170
i86
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1930-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
112
10%
15%
20%
25%
30%
40%
81
61
47
35
25
13
50%
7.3
60%
4.5
70%
2.0
75%
80%
.5
85%
.1
90%
0.0
95%
0.0
UMATILLA RIVER BASIN
14033500
95
UMATILLA RIVER NEAR UMATILLA, OR
LOCATION.--Lat 4554'll", long 119°1933", in SWNW sec.21, T.5 N., R.28 E., thnatilla County, Hydrologic limit 17070103, on left bank
1.6 mi downstream from West Division main canal of Usatilla project, 1.2 ml southeast of Umatilla, and at mile 2.1.
DRAINAGE AREA.--2.290 mi2, approximately.
PERIOD OF RECORD.--November 1903 to September 1982.
GAGE.--Water-stage recorder.
Datum of gage is 330.47 ft National Geodetic Vertical Datum of 1929.
Oct. 21, 1903 to Jan. 25, 1931,
nonrecord i ng gage.
REMARKS.--Some regulation since 1927 by McKay ReservoIr.
Many diversions above station for irrigation of lands above and below
station; Brownell Canal diverts below station. Diversions since 1908 to Cold Springs Reservoir, an off-channel reservoir,
capacIty. 52,380 acre-ft.
AVERAGE DISCHARGE.--55 years (water years 1928-82), 451 ft3/s, 326,700 acre-ft/yr Water years prior to 1928 not included in
computatIon of aver-age discharge owing to increased regulation and diversion since 1927.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 19,800 ft3/s
Jan. 30, 1965, gage height, 10.75 ft; no flow at times.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
UONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIATION
ICES)
(CFS)
ICES)
ICES)
4.2
40
79
89
87
154
4.6
1.6
1.3
1.3
1.3
1.3
78
331
77
1929-82
DISCHARGE,
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
65
157
878
226
1948
551
2366
2994
3678
3055
3362
689
898
1028
805
111
581
167
149
68
124
21
21
23
17
.85
.69
.86
.82
.68
.63
.62
1.04
1.50
.99
.75
35
29
.85
443
210
.47
472
562
612
645
698
134
560
981
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1930-82
2
5
DAYS)
50%
20%
1.4
1
4.2
3
10.3
12.9
16.8
19.2
3.5
3.8
5.2
6.8
9.5
7
14
30
14
120
183
23
52
21.2
10.5
60
90
2.1
19
2930
2
5
10
20%
10%
4460
7200
9500
25
4%
13000
50
2%
16100
1.4
1.5
.8
.9
2.2
2.9
4.2
6.3
9.0
2.6
3.9
5.6
1.3
1.7
12
100
1%
.5
.6
.3
.3
.8
.5
.5
1.0
1.7
6.6
11
21
50
2%
.2
.2
.3
.3
.6
2.5
3.7
4.2
1.0
1.5
2.1
2.4
1.0
1.5
1.6
7.1
3.7
2.3
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1929-82
IN
PERIOD
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
SECUTIVE
2
5
DAYS)
50%
20%
10
10%
4190
3510
2760
2140
1690
1320
6620
5390
4160
3150
2440
1910
1630
8550
6830
5180
3810
2860
2240
1900
25
50
100
4%
2%
1%
11400
8880
6540
13700
10600
16400
12400
8730
5720
3860
3030
2540
19700
1
WEIGHTED SKEW =
5%
100
(CON50%
20
10%
.4
.6
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
10
.4
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1929-82
80%
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
PERIOD
(CONSECUTIVE
.488
3
7
15
30
60
90
1130
4600
3310
2600
2200
7610
5170
3600
2830
2380
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1929-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
1960
10%
1280
15%
947
20%
729
25%
552
30%
409
40%
218
50%
133
60%
70%
75%
80%
69
25
17
13
85%
9.6
90%
7.1
95%
4.1
86
WILLOW CREEK BASIN
14034500
WILLOW CREEK AT HEPPNER, OR
LOCATION.--Lat 45'21'02", long 11932'56", in SENW sec.35, 1.2 S., R.26 B., 'lorrow County, Hydrologic Unit 17070104, on right bank
at Heppner-, 100 ft upstrean from Court Street bridge, 800 ft southeast of Morrow County courthouse, 0.3 ni downstream from Balm
Fork and at mile 52.2.
DRAINAGE AREA.--96.8 miL, revised.
PERIOD OF RECORD.--May 1951 to Sep+ember 1982.
GAGE.--Water-stage recorder.
Datum of gage is 1,952.73 ft National Geodetic Vertical Datum of 1929.
REMARKS.--No regulation. Many diversions for irrigation above station.
diverted to Willow Creek above station.
Part of flow of Ditch Creek (John Day River basini
is
AVERAGE DISCHARGE.--31 years. 19.1 ft3/s, 13,840 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximurn discharge, 812 ft3/s May 10, 1957, gage height, 6.15 ft, from rating curve extended above 230
ft3/s; maximum gage height, 6.46 f-I- May 25, 1971, backwater from Shobe Canyon; no flow at times.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximan discharge, about 36,000 ft3/s June 14. 1903, result of slope-area measurement (see WSP
96).
Discharge for flood of Feb. 22, 1949, was 1.700 ft3/s. result of slope-area measurement.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
1953-82
BASED ON PERIOD OF RECORD
1952-82
MONTH
MINIMUM
MAXIMUM
MEAN
(CFS)
(CFSI
ICFSI
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
0.0
8.3
ICFS)
COEFFI- PERCENT
CIENT OF
OF
ANNUAL
VARIATION
RUNOFF
1.6
1.6
1.04
.7
5.8
4.5
.78
2.5
8.0
12.4
13.9
16.7
21.3
17.5
5.7
1.0
27
82
18
20
1.11
102
29
27
.96
32
3.6
89
83
127
38
49
23
23
28
1.0
120
40
26
.9
41
13
1.4
2.0
1.7
1.2
6.6
JUNE
JULY
.1
7.0
2.3
0.0
0.0
1.2
3.6
.4
ANNUAL
2.6
1.8
.2
.3
37
.72
.60
.56
.66
.73
9.6
AUGUST
SEPTEMBER
19
.7
.80
.86
1.66
9.8
.51
PERIOD
2
5
DAYS I
50%
20%
3
.1
7
14
.1
30
60
90
.1
.1
85
2
5
20%
185
WEIGHTED SKEW =
385
50
100
5%
2%
1%
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
.2
.1
.3
.1
.1
1 20
.7
.3
.2
.1
0.0
183
2.3
1.2
.8
.6
.4
.2
100
25
50
100
10%
4%
2%
1%
810
20
10%
.1
10
556
IN PERCENT
10
0.0
0.0
0.0
0.0
0.0
.1
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD
1952-82
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
50%
EXCEEDANCE PROBABILITY,
ICONSECUlIVE
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1952-82
1.25
80%
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NON-
DISCHARGE,
STAN-
DARD
DEVIATION
PERIOD
(CONSECUTIVE
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
10
25
50
100
50%
20%
10%
4%
2%
1%
1
151
132
268
229
344
3
434
361
7
106
82
66
495
407
303
220
030
-.216
15
30
60
90
290
222
179
134
27 1
54
103
84
165
123
99
199
144
114
47
72
84
96
156
122
102
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1952-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
77
10%
158
208
25%
30%
40%
55
42
34
27
20
ii
50%
6.6
60%
4.1
70%
1.8
75%
.9
80%
.5
85%
.3
90%
.1
95%
.1
87
WILLOW CREEK BASIN
14034800
RHEA CREEK NEAR HEPPNER, OR
LOCATION.--Lat 45°15'41", long 1i93702", in NESE* sec.31, 1.3 S., P.26 E., Morrow County. Hydrologic Unit 17070104, on right bank
1.0 ml downstream from Sanford Canyon, S mi southwest of Heppner, and at mile 25.4.
DRAINAGE AREA.--120 mi2, approximately.
PERIOD OF RECORD.--August 1960 to September 1°P2.
Altitude of gage is 2,320 ft, from topographic map.
GAGE.--Water-stage recorder.
at different datum.
REMARKS.--No regulation.
Prior to May 28, 1976, at site 0.4 mi downstream
P.ny diversions for irrigation above station.
AVERAGE D1SCHARGE.--22 years, 19.8 ft3/s, 14,350 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,280 ft3/s June 10, 1969. gage height. 7.05 ft. site and datum then in use, from
rating curve extended above 130 ft3/s on basis of slope-area measurement at gage height 6.72 ft; maximum gage heIght, 7.41 ft
Dec. 22, 1964, site and datum then in use; no flow at times.
STAll STICAL SIJMMARI ES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1962-82
1961-82
STAN-
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
.8
2.5
2.9
3.2
3.2
7.2
4.7
2.4
(CFS)
42
43
43
.2
.43
1.28
1.10
.92
.76
.64
28
2.3
.9
.9
1.3
1.0
27
9.1
20
41
3.6
1.1
9.6
32
22
8.2
2.0
PERIOD
COEFFI- PERCENT
CIENT OF
OF
ANNUAL
VARIRUNOFF
ATION
24
35
32
39
6.9
2.9
3.7
.1
(CFS)
2.5
7.5
22
77
37
0.0
ANNUAL
MEAN
5.0
49
87
124
116
104
138
.7
DARD
DEVIATION
1.0
3.1
113
50%
20%
283
666
10
25
17.9
11.4
3.8
10%
4%
1020
--
--
--
0.0
0.0
0.0
0.0
.2
.2
.1
.1
.1
.1
.2
.1
1.3
.3
.7
2.2
1.4
0.0
.1
.6
.9
.3
.5
1.1
1.0
.5
I 00
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1961-82
PERIOD
(CONSECUTIVE
DAYS)
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
2
5
10
25
50
100
50%
20%
10%
4%
2%
1%
208
415
327
567
439
762
170
127
436
93
69
53
46
168
326
219
90%
95%
1560
1
WEIGHTED SKEW =
1%
.9
.4
.56
50
2%
100
2%
30
60
90
120
183
18.1
IN CFS. FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
5
50
5%
14
DISCHARGE,
2
20
.2
.2
.4
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1961-82
1.25
80%
10
10%
7
17.4
.90
.89
.96
.73
5
20%
--
3
16.1
.81
2
50%
1
9.3
.76
11
(CONSECUlIVE
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL. IN YEARS. AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
3
-.266
7
15
30
60
90
242
121
92
80
581
154
117
281
192
147
101
125
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1961-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
82
10%
15%
20%
25%
30%
40%
55
40
30
23
18
10
50%
6.1
60%
3.9
70%
2.6
75%
2.0
80%
1.5
85%
1.0
.5
.1
88
WILLOW CREEK BASIN
14036000
WILLOW CREEK NEAR ARLINGTON, OR
LOCATION.--Lat 4504512fl, long 120°00'35, In NESW+ sec.12, T.3 N., R.22 E., Gilliam County. Hydrologic Unit 17070104, on right bank
at bridge on abandoned highway, 3.8 ml downstream from ElghImIIe Canyon, 10 mi east of Arlington, and at mile 3.7.
DRAINAGE AREA.--850 mi2, approximately.
Records for March to August 1905 at site just upstream from
PERIOD OF RECORD.--March to July 1906. August 1960 to September 1979.
Eighfmile Canyon not equivalent owing to diversions and inflow.
GAGE.--Water-stage recorder and concrete control.
Datum of gage is 291.26 ft National Geodetic Vertical Datum of 1929. Mar. 1 to
July 21, 1906, nonrecording gage at site 2.6 ml upstream at different datum. Aug. 24, 1960 to July 1, 1964, water-stage recorder
at site 430 ft downstream at same datum.
REMARKS.--No regulation.
Many diversions for irrigatIon above station.
AVERAGE DISCHARGE.--1g years, 31.3 ft3/s, 22,680 acre-ft/yr.
14, 1974, gage height, 11.18 ft, from
floodmark, from rating curve extended above 1,900 ft3/s on basis of slope-area measurement at gage height 11.05 ft; maximum gage
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 16,900 ft3/s probably occurred Jan.
height, 13.50 ft Feb. 7, 1979, from floodmarks; no flow at times.
STAll STICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
1961-79
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1962-79
STANDARD
DEVIAMONTH
MINIMUM
MAXIMUM
(CFS)
ICFS)
0.0
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
.1
.6
.7
.5
MARCH
.1
APRIL
JULY
0.0
0.0
0.0
0.0
AUGUST
SEPTEMBER
0.0
0.0
MAY
JUNE
ANNUAL
MEAN
lION
ICFS)
(CFS)
2.8
.7
82
124
103
50
84
130
211
50
73
63
47
65
194
76
10
18
2.4
3.5
.9
1.3
1.7
.7
10
12
3.3
.4
57
93
31
PERIOD
ICoNTIVE
2
5
DAYS)
50%
20%
--
--
.2
3
14
0.0
1.41
22.3
19.3
30
1.02
1.04
1.22
13.1
16.5
12.3
.1
.2
1.75
1.84
2.01
1.33
2.7
.92
29
7
60
90
204
986
5
20%
4510
100
2%
1%
0.0
0.0
0.0
.1
.1
.1
.2
.1
.1
.4
.2
0.0
0.0
0.0
0.0
.1
.2
100
10
25
50
100
10%
4%
2%
1%
9760
50
5%
.5
.2
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1961-79
PERIOD
ICONSECU-
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS. AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
TIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
3160
1750
1090
702
444
5970
2910
1680
990
600
432
353
90%
95%
21900
357
1610
3
7
15
262
30
107
78
61
995
663
460
303
218
1
WEIGHTED SKEW =
20
.3
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
2
50%
0.0
.3
.4
.9
120
183
DISCHARGE,
1.25
10
10%
1
1.7
10.9
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1961-79
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
SECU-
RUNOFF
.99
2.94
1.99
1.47
19
41
478
430
ATION
.7
6.6
86
311
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
-.130
194
148
60
90
319
256
172
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1961-79
DISCHARGE,
5%
147
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
10%
15%
20%
25%
30%
82
55
37
24
13
40%
3.9
50%
1.6
60%
.7
70%
.3
75%
.2
80%
.1
85%
0.0
0.0
0.0
89
JOHN DAY RIVER BASIN
14037500
STRAWBERRY CREEK ABOVE SLIDE CREEK, NEAR PRAIRIE CITY, OR
sec.20, 1.14 S., R.34 E., Grant County, Hydrologic Unit 17070201, on left
100 ft upstream from Slide Creek, 8.5 mi south of- Prairie City, and at mile 9.0.
LOCATION.--Lat 44"20'30", long 118"39'20", In SENW
bank
DRAINAGE AREA.--7.00 mi2.
PERIOD OF RECORD.--October 1930 to September 1982.
PrIor to October 1944, published as "above South Fork, near Prairie City."
Datum of gage is 4,909.57 ft National Geodetic Vertical Datum of 1929.
GAGE.--Water-stage recorder and log control.
No diversion above station.
REPIARKS.--FIow affected by natural storage In Strawberry Lake.
AVERAGE DISCHARGE.--52 years, 12.8 ft3/s, 24.83 In/yr, 9,270 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORO.--Maximum discharge, 274 ft3/s June 14, 1974, gage height, 2.20 ft, from rating curve extended above
190 ft3/s; maximum gage height, 3.23 ft May 24, 1956 (backwater frii logs); minimum discharge, 1.0 ft3/s Mar. 20, 1955.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
1932-82
BASED ON PERIOD OF RECORD
1931-82
DARO
DEVIAMINIMUM
(CFS)
MONTH
MAXIMUM
(CFS)
JANUARY
FEBRUARY
MARCH
APRIL
16
AUGUST
6.7
2.8
SEPTEMBER
1.6
ANNUAL
4.8
JULY
ICES)
3.2
3.6
4.2
3.7
3.5
3.5
11
14
8.4
13
7.9
1.7
2.1
1.5
37
54
14
21
55
15
21
11
7.3
4.0
1.1
3.4
.27
2.4
13
2
5
50%
20%
2.0
2.0
1
2.3
2.7
2.4
2.3
2.3
5.9
24.0
34.9
.43
.52
.38
.40
.54
.32
.27
TIVE
DAYS)
2.1
.59
4.7
PERIOD
(CONSECU-
RUNOFF
.32
.47
.62
.47
2.6
71
22
ATION
1.7
130
7.0
COEFFI- PERCENT
CIENT OF
OF
ANNUAL
VARI-
1.0
9.1
23
9.6
MAY
JUNE
lION
(CFS>
7.0
1.4
1.7
1.6
1.7
1.5
1.3
1.9
OCTOBER
NOVEMBER
DECEMBER
MEAN
3
7
14
2.3
2.5
2.7
2.9
30
60
90
120
183
61
2
50%
87
3.2
5
10
25
50
100
10%
4%
2%
1%
151
184
209
100
2%
1%
1.4
1.5
1.5
1.5
1.6
1.8
1.9
2.0
2.2
1.3
1.3
1.3
1.4
1.5
1.6
1.7
1.8
2.0
1.2
1.2
1.2
1.3
1.3
1.5
1.6
1.7
1.8
1.1
1.1
1.1
1.2
1.3
1.4
1.5
1.6
1.6
100
20%
125
50
5%
4.8
2.6
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1931-82
PERIOD
(CONSECU-
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
TIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
83
80
74
67
59
48
38
114
109
135
101
160
150
138
90
78
104
89
121
101
61
68
53
74
58
178
165
152
133
109
79
195
127
117
235
1
WEIGHTED SKEW =
20
10%
13.7
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
10
1.6
1.6
1.6
1.7
1.8
2.0
2.1
2.3
2.5
2.1
2.1
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1931-82
80%
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE,
STAN-
-.017
3
7
15
30
60
90
48
181
166
144
117
61
82
64
90%
95%
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1931-82
DISCHARGE,
5%
57
10%
15%
39
27
20%
18
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
13
30%
9.0
40%
.1
50%
60%
3.8
70%
3.3
75%
3.0
80%
2.8
85%
2.5
2.3
1.9
JOHN DAY RIVER BASIN
go
14038500
JOHN DAY RIVER AT PRAIRIE CITY. OR
LOCATIOW.--Lat 4427'15", long 1184300", in SENE- sec.l0, T.13 S., R.33 E., Grant County. Hydrologic Unit 17070201. on right bank
600 ft upstream from outlet of Prairie power canal
0.3 mi downstream from Dixie Creek, 0.8 mi southwest of Prairie City, and at
mile 262.0.
DRAINAGE AREA.--231 m12.
PERIOD OF RECORD.--October 1916 to September 1917 (gage heights only), March 1925 to September 1968. Monthly discharge only March
1925 published In WSP 1318.
GAGE.--Water-stage recorder.
Prior to Mar. 30, 1926, staff
Datum of gage is 3,4c4.59 ft National Geodetic Vertical Datum of 1929.
gage at site 600 ft downstream, just below outlet of Prairie power canal, al different datum. Mar. 30, 1926, to Aug. 23, 1943,
staff gage at various sites and datums just above outlet of Prairie power canal.
Aug. 24, 1943, to Sept. 22, 1965, water-stage
recorder at datum 2.07 ft higher. Sept. 23, 1965, to July 27, 1966, water-stage recorder at present site and datum.
REMARKS.--No regulation.
Several diversions upstream including Prairie power canal (not used for power since February 1952) which
diverts above station in SE sec.7, 1.13 5.. R.34 E., for irrigation above and below station.
AVERAGE DISCHARGE.--27 years (water years 1926-52), 113 ft3/s, including flow of Prairie power canal, 81,810 acre-fi/yr; 15 years
(water years 1953-68), 114 ft3/s, river only, 82,530 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,400 ft/s Dec. 22, 1964, gage height, 8.07 ft. present datum, from rating curve
extended above 1,400 ft3/s; minimum, 2 ft/s Dec. 8, 21, 22, 1932, Aug. 10, 1934.
STATISTICAL SUMMARIES (RIVER DISCHARGE ONLY DURING POWER CANAL DIVERSIONI
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1927-52
1926-52
STAN-
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
MINIMUM
MAXIMUM
(CFS)
(CFS)
8.7
6.5
8.4
220
27
45
39
22
310
377
ANNUAL
42
(CFS)
43
65
65
85
139
188
203
136
531
392
87
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
27
29
51
174
9.5
4.0
11
(CFS)
108
124
163
13
12
AUGUST
SEPTEMBER
MEAN
DARD
DEVIATION
45
43
74
.44
115
98
.57
.72
.57
19
77
34
20
29
18
.59
.63
162
90
34
.37
48
12
5
50%
20%
3
7
13.1
17.8
19.2
12.9
3.2
1.9
.53
82
2
DAYS)
6.2
6.2
8.0
.51
80%
329
5
50%
20%
540
921
10
10%
1240
25
4%
1720
50
2%
5.6
5.9
6.6
7.9
14
13
17
20
23
33
10
20
50
100
10%
5%
2%
1%
3.5
3.7
3.9
4.3
4.1
4.4
4.7
5.2
6.2
8.4
9.8
11
12
14
11
20
15
5.2
7.0
8.1
8.7
12
2.9
3.1
3.3
3.5
4.3
5.7
6.7
6.9
9.1
2.7
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1926-52
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
DISCHARGE,
PERIOD
(CONSECU-
100
EXCEEDANCE PROBABILITY,
lIVE
2
DAYS)
50%
IN PERCENT
5
20%
10
25
50
100
10%
4%
2%
1%
744
606
512
975
796
659
535
439
370
320
1320
1080
1620
1330
1050
787
2140
461
1
WEIGHTED SKEW =
5.2
9.3
9.8
30
60
90
120
183
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
2
8.5
11
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1926-52
1.25
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
TIVE
4.0
4.8
.62
.57
.58
.70
38
PERIOD
(CONSECU-
.276
375
327
287
250
217
3
7
15
30
50
90
189
431
364
310
269
871
676
533
443
383
60)
496
428
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1926-52
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
287
10%
219
15%
174
20%
139
75
115
30%
40%
50%
60
70%
75%
80%
85%
90%
96
74
60
46
32
25
20
16
13
95%
9.5
91
JOHN DAY RIVER BASIN
14038500
JOHN DAY RIVER AT PRAIRIE CITY, OR--Continued
STATISTICAL SUMMARIES (POWER CANAL ABANDONED)
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1954-68
1953-68
DARD
DEVIAMINIMUM
(CFS)
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
45
62
62
64
65
MARCH
APRIL
MAY
JUNE
JULY
MAXIMUM
(CFS)
92
79
65
72
24
102
90
274
316
264
293
359
438
315
105
MEAN
(CFS)
TION
(CFS)
68
75
103
109
COEFFI-
VAR)ATION
67
34
39
24
15
10
.53
.58
.47
.39
.40
.50
.36
.41
.43
.26
192
114
35
.31
AUGUST
SEPTEMBER
19
81
27
ANNUAL
73
64
144
199
57
223
112
67
80
185
59
TIVE
2
5
DAYS)
50%
20%
15
16
17
10
5.0
5.4
7.5
7.9
.11
55
64
OF
ANNUAL
RUNOFF
.20
8.0
PERIOD
(CONSECU-
PERCENT
dENT OF
14
137
1
3
7
30
60
90
120
183
2
5
50%
20%
59
10
20
50
100
10%
5%
2%
1%
13
15
20
27
32
40
51
7.4
8.7
9.4
11
8.1
11
10
13
17
25
29
12
16
23
27
33
44
36
47
4.3
2.5
2.9
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1953-68
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
20
26
32
39
48
14
10.0
10.5
14.5
16.2
13.5
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
80%
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE,
STAN-
10
25
50
100
10%
4%
2%
1%
PERIOD
(CONSECU-
TIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
434
393
366
310
264
226
205
683
596
520
425
908
774
634
506
424
364
1280
1960
794
324
381
90%
95%
32
24
1
3
WEIGHTED SKEW
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
7
15
30
60
90
361
310
277
613
503
432
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1953-68
DISCHARGE,
5%
322
10%
23
5%
188
20%
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
137
30%
120
40%
50%
97
82
73
70%
75%
64
60
51
41
92
JOHN DAY RIVER BASIN
14038530
JOHN DAY RIVER NEAR JOHN DAY. OR
LOCATION.--Lat 4425'O7", long 11854'19", in SWSE sec.19, 1.13 S., R.32 E., Grant County, Hydrologic Unit 17070201. on left bank
1,200 ft downstream fran Dog Creek, 2.5 mi east of John Iy, and at mIle 250.8.
DRAINAGE AREA.--386 mi2.
PERIOD OF RECORD.--October 1968 to September 1982.
GAGE.--Water-stage recorder.
Datum of gage is 3,130.56 ft National Geodetic Vertical Datum of 1929.
Many diversions above station for irrigation.
REMARKS.--Some regulation from irrigation ditches upstream.
AVERAGE DISCHARGE.--14 years, 207 ft3/s, 150,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 5.830 ft3/s June 9, 1969, gage height, iO.8O ft. from floodmark; minimum, 3.5
ft3/s Aug. 26-28, 1969.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
MEAN
(CFS)
(CFS)
(CFS)
73
88
92
88
89
112
STANDARD
DEVIAlION
(CFS)
COEFFI-
.13
42
.34
81
235
245
279
317
443
117
142
381
115
209
75
30
20
.48
.50
.58
.43
.36
.36
.55
.65
.71
.39
71
.34
531
516
741
26
10
314
116
26
101
41
51
74
370
207
810
PERIOD
OF
ANNUAL
RUNOFF
(CON-
VARIAllOW
12
89
88
iO8
74
PERCENT
dENT OF
88
123
167
244
385
514
689
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1970-82
1969-82
121
113
161
SECIJ-
TIVE
2
5
10
DAYS)
50%
20%
10%
3.5
4.9
6.7
9.5
9.9
11.2
12.8
17.8
15.3
4.6
I
ii
3
12
7
14
13
15
30
22
60
90
37
120
62
83
2
5
10
50%
20%
iO%
25
4%
50
2%
1670
2860
3840
8.1
6.1
9.0
1%
3.7
4.2
4.7
5.4
7.9
6.8
14
26
10
21
18
37
49
29
42
64
24
36
59
70
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1969-82
PERIOD
(CONSECUTIVE
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
25
4%
10
2
5
50%
20%
10%
1230
790
1800
1450
1130
2030
1640
1270
932
768
653
596
50
100
2%
1%
5320
1
WEIGHTED SKEW
4.9
5.5
50
2%
100
DAYS)
1010
6.7
7.4
20
5%
1.7
2.1
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
51
183
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1969-82
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
.231
3
7
15
998
649
860
30
60
90
561
468
721
608
419
550
2210
1790
i380
979
796
682
628
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1969-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
626
10%
469
15%
387
20%
325
25%
276
30%
234
40%
174
50%
132
60%
108
70%
75%
80%
85%
90%
95%
90
82
73
60
39
23
93
JOHN DAY RIVER BASIN
JOHN DAY RIVER AT PICTURE GORGE, NEAR DAYVILLE, OR
14040500
LOCATION.--Lat 4431'15', long 11937'3O", in SW sec.17, 1.12 S., R.26 E., Grant County, Hydrologic Unit 17070201, on right bank
0.7 mi upstream frau Rock Creek, 5.5 ml northwest of Deyville, and at mile 2O5.t.
DRAINAGE AREA.--i.680 mia, approximately.
PERIOD OF RECORD.--April 1926 to September 1982.
Monthly discharge only April 1926, published in WSP 1318.
GAGE.--Water-stage recorder. Datum of gage is 2,229.84 ft National GeodetIc Vertical Datum of 1929. PrIor to Oct. 11, 1926.
nonrecording gage and Oct. 11, 1926, to Sept. 30. 1930, water-stage recorder at same site at datum 2.50 ft higher. Oct. 1. 1930,
to Aug. 28, 1970, at datum 2.00 ft higher.
REMARKS.--No regulation. Many diversions for irrigation above station.
AVERAGE DISCHARGE.--56 years, 478 ft3/s, 346,300 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 8,170 ft3/s Dec. 22, 1964, gage heIght, 14.97 ft; minimum, 1.0 ft3/s for several
days in August and September 1930, Aug. 8, 9, 1936, Sept. 9, 1966.
STATISTICAL S1I.IMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIAlION
(CFS)
(CFS)
(CFS)
(CFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1928-82
1927-82
PERIOD
COEFFI- PERCENT
CIENT OF
OF
ANNUAL
VARIATION
RUNOFF
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
15
282
135
75
105
561
220
366
467
638
882
1204
1034
97
1377
1706
136
196
146
79
2493
2380
3310
2955
78
7.2
AUGUST
SEPTEMBER
ANNUAL
1.6
2.6
124
58
83
258
368
450
450
596
570
1899
577
213
210
591
56
45
46
1043
478
210
.44
371
113
43
14
2
5
50%
20%
10
10%
25
4%
50
2%
2680
4360
5610
7340
8720
2.5
6.0
7.3
3.4
1.5
1.6
1.8
2.7
3.1
10
4.1
5.5
16
9.0
33
82
2.0
2.4
3.2
5.3
20
13
61
46
1%
.5
.8
.9
1.1
.6
.7
.7
1.3
1.7
.9
1.1
1.0
2.8
7.0
1.7
4.6
26
33
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1927-82
PERIOD
(CONSECUTIVE
100
1%
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
2
5
20%
10%
25
4%
50
50%
2390
2210
1970
1720
1460
1220
1080
3860
3500
3070
2590
2160
4880
4330
3740
3060
2540
2130
1860
6200
5320
4500
3560
2940
2470
2150
7200
6010
5010
3870
3180
2680
2330
10
2%
100
1%
10200
1
WEIGHTED SKEW =
4.5
4.9
5.4
100
50
2%
.7
DAYS)
1650
10%
1.0
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
1.25
20
28
42
71
130
120
183
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1927-82
80%
15
16
30
60
90
15.3
20.9
18.0
10.3
2.2
5
20%
14
20
5%
10
2
50%
13
1
3
7
8.1
11.1
.71
.51
.50
.55
.63
.90
1.06
.84
125
2.3
3.8
6.4
.43
.38
.70
.79
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL. IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
-.018
3
7
15
30
60
90
1800
1580
8200
6660
5460
4120
3380
2860
2480
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1927-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
1670
10%
1250
15%
994
20%
804
25%
653
30%
531
40%
348
50%
247
60%
188
70%
136
75%
109
80%
85%
90%
95%
77
46
25
10
94
JOHN DAY RIVER BASIN
14041500
NORTH FORK JOHN DAY RIVER NEAR DALE, OR
LOCATION.--Lat 4459'55", long 1185625', in SESE
0.2 m
sec.35, T.6 S., R.31 E., Grant County, Hydrologic Unit 17070202, on right bank
downstream from Desolation Creek and 0.8 ml northeast of Dale.
DRAINAGE AREA.--525
PERIOD OF RECORD.--Qctober 1929 to September 1958.
GAGE.--Water-stage recorder.
Datum of gage is 2,775.63 ft National Geodetic Vertical Datum of 1929.
REMARKS.--Flow regulated by Olive Lake (capacity, about 5,500 acre-ft) and Upper Reservoir on Lake Creek (capacity, about 700
acre-ft). Some diurnal fluctuation at low flow caused by logging operations above station. Several small diversions for
Irrigation and mining above station. Since 1865 water has been diverted above station at times to North Fork Burnt River.
AVERAGE DISCHARGE.--29 years (water years 1929-58>, 404 ft/s, 292,500 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 8,170 ft3/s May 26, 1948, gage height, 10.48 ft; minimum, 6 ft3/s Nov. 3,
gage height, 1.40 ft, result of freezeup; minimum daily, 10 ft3/s Nov. 11, Nov. 29 to Dec. 1, 1936, Jan. 7, 8, 1937.
1936,
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
(CFS)
(CFS)
MEAN
(CFS
STANDARO
DEVIAlION
(CFSI
39
147
31
274
96
48
37
29
35
463
145
130
178
111
83
198
253
212
60
343
496
593
2052
3296
2589
71
544
906
206
31
131
117
69
56
191
682
405
28
COEFF?- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
28
.39
.50
.77
.50
.54
.46
.45
.45
65
97
276
1009
1708
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1931-58
1930-58
128
457
766
557
.58
19
.34
139
.34
(CONSECUTIVE
DAYS)
1.5
2
5
20%
3080
4500
25
50
100
10%
4%
2%
1%
6530
21
16
13
24
27
32
18
14
11
22
27
18
15
24
31
27
34
37
42
50
31
20
24
27
33
37
43
32
37
83
35
39
44
49
59
9.6
29
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1930-58
PERIOD
ICONSECUlIVE
DISCHARGE, IN CES, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEOANCE PROBABILITY, IN PERCENT
2
5
50%
20%
10%
15
2850
2690
2480
2190
30
60
90
1900
1520
1200
4090
3830
3520
3110
2670
2080
4840
4510
4130
3640
3110
2400
1630
1880
25
4%
50
2%
5720
5280
4800
4230
3600
2740
2160
6330
5800
5240
4620
3930
2970
2340
10
100
1%
7330
1
WEIGHTED SKEW =
1%
100
10
5410
100
2%
47
52
58
64
DAYSI
2030
50
5%
(.4
1.1
.41
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PEREENT
50%
20
42
MAGNITUDE AND PROBABILITf OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1930-58
1.25
80%
10
10%
14
120
183
18.7
4.2
5
20%
30
60
90
5.7
2
50%
33
37
40
3
20.8
35.2
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL. IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
7
1
2.0
3.0
2.7
3.7
.61
120
28
PERIOD
-.309
3
7
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD (930-58
DISCHARGE,
5%
1910
10%
1210
15%
816
20%
575
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
383
30%
278
40%
182
50%
128
60%
tOO
70%
75%
80%
85%
90%
95%
78
69
61
53
46
38
95
JOHN DAY RIVER BASIN
14042000
CAMAS CREEK NEAR LEHIIAN, OR
LOCATION.--Lat 45°1O16", long 118°4353', in SW sec.33, 1.4 S., R.33 E., lJrnatil a County, Hydrologic UnIt 17070202, on left bank
2.1 ml downstream from Bowman Creek, 3.5 mi northwest of Lehman, and at mile 25.5.
DRAINAGE AREA.--60.7 mi2.
PERIOD OF RECORD.--October 1950 to September 1970.
Datum of gage is 3,969.53 ft National Geodetic Vertical Datum of 1929 (levels by State Highway
GAGE.--Water-stage recorder.
Department).
REMARKS.--No regulation.
A few small diversions for irrigation above station.
AVERAGE DISCHARGE.--20 years, 43.3 ft3/s, 31,370 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maxlmum discharge, 1,880 ft3/s Dec. 21, 1955, gage height, 4.56 ft, from rating curve extended above
900 ft3/s; minimum, 0.23 ft3/s Aug. 24, 1956.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
(CFS)
(CFS)
MEAN
(CFSI
STANDARD
DEVIAlION
(CFSI
3.2
11
1.8
1.9
36
155
156
Ii
11
34
42
207
62
196
81
167
91
6.4
269
203
76
39
44
54
47
72
1.4
11
23
4.3
1.4
1.5
43
16
2.7
2.5
5.9
27
13
2.2
2.7
.5
.8
18
81
COEFFI-
PERCENT
PERIOD
OF
ANNUAL
RUNOFF
ICONSECUTIVE
DAYS)
dENT OF
VARIATION
2.5
1.2
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1952-70
1951-70
.78
.99
11.9
15.5
51
.86
.58
.43
.56
19
.81
4.5
.62
.32
.32
.8
.3
.3
2.7
.5
.5
32.0
.6
.5
.4
.9
.6
.5
.4
7
.g
.6
.5
14
1.0
.7
.6
30
1.1
.8
.7
.4
.5
.6
60
90
1.3
1.0
1.2
1.5
2.7
1.5
1.9
4.1
80%
418
634
WEIGHTED SKEW =
5
20%
994
10
10%
1280
25
4%
.9
.8
1.1
1.0
1.3
1.4
2.1
100
1%
1.7
100
36
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1951-70
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
50
2%
20
5%
10
10%
.8
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1951-70
1.25
5
20%
1
120
183
17.5
2
50%
3
.6
2.0
6.5
8.0
1.13
1.05
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
50
100
2%
1%
PERIOD
(CONSECUlIVE
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
50%
20%
690
549
419
329
10
10%
25
4%
891
1200
680
488
372
290
224
869
574
50
2%
tOO
1%
68Q
.279
1
449
3
381
7
15
312
252
30
60
90
192
145
122
254
195
164
190
421
330
259
220
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1951-70
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
201
10%
129
15%
20%
25%
30%
40%
92
67
49
36
19
50%
9.5
60%
4.5
70%
2.8
75%
2.3
80%
1.9
85%
1.6
90%
95%
JOHN DAY RIVER BASIN
96
14042500
CAMAS CREEK NEAR UKIAH, OR
LOCATION.--Lat 45'09'25", long 118'491O, in SESE* sec.3, T.5 S., R.32 E., Umatilla County, Hydrologic Unit 17070202, on right bank
1.2 ml upstream from Cable Creek, 5.8 mi east of IJkIah, and at mile 18.7.
DRAINAGE AREA.--121 mi2.
PERIOD OF RECORD.--May 1914 to September 1917, November 1919 to July 1920, November 1920 to June 1924, March 1932 to June 1940
Ifragmentary), November 1940 to September 1982. Monthly discharge only for sonic periods, published in WSP 1318. Published as
"above Cable Creek, near Ukiah' 1914-17, 1919-24.
GAGE.--Water-stage recorder. Datum of gage is 3,588.61 ft National Geodetic Vertical Datum of 1929 (levels by State Highway
Deparhnent). May 1, 1914, to June 30, 1924, nonrecordlng gage and Mar. 1, 1932, to July 2, 1940, water-stage recorder at sIte 1.2
mi downstream at different datum.
REMARKS.--No regulation.
Diversions for irrigation above station.
AVERAGE DISCHARGE.--46 years (water years 1915-17, 1922-23, 1942-82), 95.9 ft3/s, 69,480 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximiin discharge, 3,840 ft/s Jan. 30, 1965, gage height, 5.21 ft; maximum gage height, 5.92 ft
Jan. 24, 1982 (Ice jam); minimum discharge recorded, 1.0 ft3/s Aug. 9, 1932, June 24 to July 2, 1940.
STAT I ST ICAL SUMMARI ES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1916-82
1915-82
STANDARD
DEVIAMINIMUM
(CFS)
MONTH
3.4
MAXIMUM
(CFS)
APRIL
53
39
140
263
338
384
575
658
MAY
19
925
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
4.4
4.7
3.5
5.0
5.0
MARCH
JUNE
4.9
314
JULY
3.1
77
AUGUST
2.2
11
SEPTEMBER
2.4
14
ANNUAL
36
MEAN
(CFS)
TION
ICFS)
8.8
6.0
1.9
.68
1.10
.95
1.08
.92
.68
.42
.66
.83
.84
.38
2.2
.41
64
lii
80
102
178
337
121
140
162
246
80
66
13
15
5.0
5.3
96
171
ATION
30
28
67
74
RUNOFF
lIVE
2
DAYS)
50%
.8
2.4
7
14
30
60
90
15.4
29.2
21.3
6.9
120
183
80%
5
20%
12
695
1040
1590
10
25
50
100
10%
4%
2%
1%
2010
25B0
3050
10
20
50
100
10%
5%
2%
1%
2.2
2.2
2.4
2.6
2.9
3.4
4.0
4.7
7.3
1.9
1.9
2.1
1.7
1.7
1.5
1.5
1.8
2.3
2.5
3.0
3.6
4.3
5.9
2.1
4.1
1.6
1.9
2.1
2.4
3.1
3.9
4.9
4.0
2.3
2.7
3.4
1.4
1.4
1.5
1.7
1.9
2.2
3.0
3.8
3.6
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1915-82
PERIOD
(CONSECU-
TIVE
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS. AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
2
50%
5
20%
10
25
50
100
10%
4%
2%
1%
819
706
600
498
398
316
267
1210
1010
831
1500
1240
675
553
774
646
517
428
1930
1550
1160
881
755
607
496
2290
1800
1280
950
829
670
3560
1
WEIGHTED SKEW =
5
20%
1.3
.4
.5
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
2.8
2.9
3.1
3.2
3.6
4.3
4.9
5.8
1
3
5.8
6.4
9.6
.36
34
PERIOD
(CONSECU-
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1915-82
1.25
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS. AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE,
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
.184
3
7
15
30
60
90
441
369
978
541
2680
2070
1410
1010
899
129
583
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1915-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
10%
287
15%
210
20%
157
25%
116
30%
40%
50%
85
46
23
60%
13
70%
8.1
75%
6.8
80%
5.8
85%
4.9
90%
4.1
95%
3.3
97
JOHN DAY RIVER BASIN
14044000 MIDDLE FORK JOHN DAY RIVER AT RITTER, OR
LOCATION.--Lat 44'53'2O', long 119O825", in SW*NW* sec.8, 1.8 S., R.30 E., Grant County, Hydrologic Unit 17070203, on left bank
0.2 mi south of Ritter, 0.8 ml downstream from Twelvemile Creek, and at mile 14.9.
DRAINAGE AREA.--515 mi2.
PERIOD OF RECORD.--October 1929 to September 1982.
GAGE.--Water-stage recorder.
REMARKS.--No regulation.
Datum of gage is 2,544.56 ft ktional GeodetIc Vertical Datum of 1929.
Diversions for irrigation above station.
AVERAGE DISCHARGE.--53 years, 247 ft3/s, 179,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 4,730 ft3/s Jan. 30, 1965. gage height, 8.39 ft. from rating curve extended above
2,200 ft3/s; maximum gage height, 9.13 ft Feb. 1, 1963, ice Jam; minimum discharge, 0.90 ft3/s Aug. 19, 20, 1966.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
1ONTH
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIAlION
ICES)
(CFS)
(CFS)
ICES)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1931-82
1930-82
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
PERIOD
(CONSECUlIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
17
92
20
29
23
31
70
175
231
79
80
17
482
580
707
42
70
15
.35
43
.61
1.4
2.4
128
160
105
141
157
.82
.88
.68
4.3
5.4
7.8
212
.51
14.0
311
694
353
76
312
217
.42
.45
24.8
23.4
.61
47
.61
11.9
2.6
1.0
1.0
1214
1413
1417
1066
237
74
232
416
736
AUGUST
SEPTEMBER
10
71
29
29
17
12
.58
.42
ANNUAL
85
452
247
95
.38
3.8
12
14
1
7
14
16
18
30
60
90
120
20
24
29
183
51
1080
5
50%
20%
1600
2370
10
25
50
100
10%
4%
2%
1%
2900
3580
4110
34
10%
6.2
7.2
4.1
4.7
5.2
8.1
6.5
8.4
9.6
12
16
20
25
36
100
2%
1%
2.8
3.2
3.4
4.5
1.7
1.9
2.0
2.8
1.2
1.3
1.4
2.0
6.2
4.2
7.4
6.1
9.7
12
50
3.2
9.4
16
21
14
11
18
14
13
29
25
20
17
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1930-82
PERIOD
(CONSECUTIVE
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
50%
20%
7
15
1430
1300
1150
1010
2120
1880
1610
30
60
90
878
743
644
10
10%
25
4%
50
2%
100
2560
2220
3090
2610
2100
1840
1580
1370
1160
3470
2880
2260
3830
3120
2390
2080
1%
4640
1
WEIGHTED SKEW =
20
5%
10
5
20%
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
2
50%
3
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1930-82
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
-.062
3
1410
1220
1040
885
1850
1620
1400
1200
1020
1970
1700
1490
1250
1790
1580
1320
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1930-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
972
10%
714
15%
545
20%
421
25%
327
30%
254
40%
154
50%
60%
70%
75%
80%
85%
90%
95%
89
60
46
40
34
29
24
17
98
JOHN DAY RIVER BASIN
14044500
FOX CREEK AT GORGE, NEAR FOX, OR
LOCATIO84.--Lat 4437'3O", long 119l5'1O", In SW sec.8, 1.11 S., R.29 E., Grant County, Hydrologic Unit 17070202, on left bank 0.5
ml upstream fraa head of gorge and 6 mi southwest of Fox.
DRAINAGE AREA.--90,2 mi2; at site used prior to June 12, 1952, 91.5 mi2.
PERIOD OF RECORD.--October 1930 to September 1958.
GAGE.--Water-stage recorder. Altitude of gage is 4,240 ft National Geodetic Vertical Datum of 1929 (from topographic map).
June 12, 1952, at site 0.5 mi downstream at different datum.
Prior to
REMARXS.--Dverslons for irrigation of 4,800 acres above station.
AVERAGE DISCHARGE.--28 years (water years 1931-58), 25.9 ft3/s, 18,750 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORO.--Maximum discharge, 1,860 ft3/s Mar. 25, 1952, gage height, 5.85 ft, former site and datum, from
rating curve extended above 200 ft3/s on basis of slope-area measurement of peak flow; no flow at times in each year.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
0.0
0.0
0.0
ANNUAL
STANDARD
DEVIATION
MEAN
(CFS)
3.1
.6
.1
95
16
.1
130
3.0
1.8
232
.3
180
293
35
75
87
65
.1
141
19
0.0
0.0
0.0
15
1.8
67
COEFFI-
dENT OF
VAR?ATION
(CFS>
15
26
34
55
59
29
1.9
3.0
.2
.6
1.8
.2
.5
26
.61
(CONSECUTIVE
DAYS>
217
2
5
50%
20%
410
WEIGHTED SKEW =
798
10
10%
1140
25
4%
1700
50
2%
5
10
20
50
100
20%
10%
5%
2%
1%
-0.0
0.0
0.0
0.0
-0.0
0.0
0.0
0.0
1
3.2
5.2
14
30
24.0
27.8
21.0
6.0
60
90
.1
.1
0.0
0.0
120
183
.2
.1
0.0
0.0
.7
.1
.1
7
--
--
-0.0
.6
LOW-FLOW STATISTICS UNCERTAIN DUE TO EXCESSIVE
ZERO EVENTS.
NOTE:
.1
.1
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1931-58
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
2
50%
3
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1931-58
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
11.1
2.57
2.29
I6
PERIOD
.2
.7
.98
.73
.51
.91
1.53
1.56
44
3.1
PERCENT
OF
ANNUAL
RUNOFF
1.68
1.35
1.45
1.56
.9
3.0
2.2
10.0
13
61
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1932-58
1931-58
PERIOD
(CONSECUTIVE
DAYS>
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
50%
20%
1
294
549
3
238
451
7
186
149
123
100
84
334
249
10
10%
25
4%
50
2%
739
613
430
300
216
994
832
544
345
234
1190
1000
176
192
158
199
100
1%
2200
.171
15
30
60
90
190
154
128
145
621
370
242
163
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1931-58
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
132
10%
15%
20%
25%
30%
58
39
26
15
40%
5.2
50%
2.4
60%
.9
70%
.2
75%
.1
80%
.1
85%
0.0
90%
0.0
95%
0.0
99
JOHN DAY RIVER BASIN
14046000
NORTH FORK JOHN DAY RIVER AT MONUMENT, OR
LOCATION.--Lat 4448'5o", long 119°25'So', in SE sec.2, T.9 S., R.27 E., Grant County, Hydrologic Unit 17070202, on right bank just
downstream fran entrance to canyon, 0.7 mi downstream from Cottonwood Creek, 0.8 mi west of Monument, and at mile 15.3.
DRAINAGE AREA.--2,520mi2, approximately.
PERIOD OF RECORD.--March 1925 to September 1982.
Monthly discharge only for some periods, published in WSP 1318.
GAGE.--Water-stage recorder.
Datum of gage is 1,959.64 ft National Geodetic Vertical Datum of 1929.
Prior to Nov. 24. 1925,
nonrecording gage and Nov. 24, 1925, to Oct. 16, 1928, water-stage recorder at datum 1.10 ft higher.
Oct. 17, 1928, to Sept. 30,
1930, water-stage recorder at datum 1.00 ft higher.
REMARKS.--Very slight regulation by small reservoirs upstream.
Many small diversions for irrigation above station.
AVERAGE DISCHARGE.--57 years, 1,248 ft3/s, 904,200 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maxlmum discharge, 33,400 ft3/s Jan. 30, 1965, gage height, 18.45 ft, from rating curve extended
above 17,000 ft3/s; mInimum, 6 ft3/s sometime during period Nov. 2-13, 1936 (result of freezeup); minimum daily, 17 ftu/S Dec. 12,
1932.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1930-82
1929-82
STAN-
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
MEAN
ICFS)
DARD
DEVIATION
(CFS)
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
PERIOD
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARy
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
59
65
97
348
1621
3374
154
305
726
4126
4970
6023
6695
8794
5227
97
37
45
1211
931
1340
2142
3533
3582
1710
376
322
278
124
114
441
2290
1250
76
134
345
822
378
326
63
268
747
913
1031
1096
1426
1662
1.0
2.0
4.8
6.2
8.9
14.2
23.5
23.8
11.4
2.5
.41
.88
1.03
.98
.77
.51
49
.40
.46
.58
.63
.52
.43
500
.40
993
235
65
7
14
30
60
90
120
183
5720
2
5
20%
8930
14200
10
25
10%
4%
18200
23800
50
2%
28400
39
43
72
79
87
100
114
132
50
56
61
71
216
10
20
50
100
10%
5%
2%
1%
30
34
40
24
28
33
38
18
15
19
45
22
27
30
34
42
83
96
50
59
69
80
69
49
58
140
111
91
73
50
59
23
26
29
36
43
41
51
63
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1929-82
PERIOD
(CONSECUTIVE
DAYS)
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
10
25
50
100
20%
10%
4%
2%
1%
11400
9980
8440
7080
14400
12300
10100
8190
6900
5880
5080
18600
15300
12100
9390
7830
6680
5790
5
33400
7340
6630
5810
5080
4370
3710
3220
1
WEIGHTED SKEW =
5
20%
.8
.8
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
2
50%
62
65
1
3
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1929-82
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
.129
3
7
15
30
60
90
6010
5110
4420
21900
17600
13500
10100
8410
7190
6230
25500
19900
14800
10800
8910
7630
6620
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1929-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5
4970
10%
3670
15%
2800
20%
2190
25%
1720
30%
1340
40%
812
50%
412
60%
251
70%
178
75%
152
80%
131
85%
lii
90%
95%
93
71
I 00
JOHN DAY RIVER BASIN
14046500
JOHN DAY RIVER AT SERVICE CREEK. OR
LOCATION.--Lat 44'47'38', long 120O0'20', In NW*NE sec.18, 1.9 S., R.23 E., Wheeler County, Hydrologic Unit 17070204, on left bank
0.2 ml downstream fras bridge on State HIghway 207, 0.8 ml downstream from Service Creek, 0.5 ml southwest of town of Service
Creek, and at mile 156.7.
DRAINAGE AREA.--5,09O mi2, approximately.
PERIOD OF RECORD.--March 1925 to September 1926, October 1929 to September 1982.
1926, publIshed In WSP 1318.
Monthly discharge only March 1925 to September
GAGE.--Water-stage recorder. Datum of gage Is 1,632.42 ft Netlonal Geodetic Vertical Datum of 1929.
changes prior to Feb. 24, 1957.
REMARKS.--Very slight regulation by several small reservoirs above station.
AVERAGE DISCHARGE.--53 years, 1,863
ft3fs,
See WSP 1738 for history of
Many small diversions for irrigation above station.
1,350,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maxlmum discharge, 40,200 ft3/s Dec. 23, 1964, gage heIght, 17.85 ft. from rating curve extended
above 14,000 ft3/s on basis of slope-area measurement of peek flow; mInimum, 6.0 ft3/s Aug. 23, 24, 1973.
STATISTICAL SUMMARI ES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
(CFS)
(CFS)
71
152
216
195
358
597
1010
491
416
91
15
31
619
MEAN
(CFS)
STANDARD
DEVIATION
(CFS)
636
2284
5540
6335
7930
9383
9812
12050
8327
1850
2241
3331
5136
4909
2460
548
2159
2353
545
492
166
165
120
3485
1878
779
1211
1564
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
132
302
566
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1931-82
1930-82
.44
.64
.93
364
1125
1420
1625
1778
.91
.73
.53
.42
.48
.60
.70
.72
.60
1485
382
99
WON-
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
SECUlIVE
DAYS)
2
5
10
20
50
100
50%
20%
10%
5%
2%
1%
43
44
28
29
19
12
20
12
7
14
84
85
88
91
31
102
21
24
29
16
30
46
49
56
73
8.4
8.8
10.0
PERIOD
1.3
1
2.5
5.4
6.9
9.9
14.7
22.7
21.7
10.9
2.4
3
60
90
120
183
7410
2
50%
11900
5
20%
19100
10
25
50
100
10%
4%
2%
1%
24200
31200
36600
83
150
15
29
23
33
50
93
41
61
113
100
.41
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD
1930-82
PERIOD
(CONSECUlIVE
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
20%
10%
25
4%
50
2%
100
50%
10600
16700
15000
12700
10500
8870
7510
6520
21100
18700
15400
12200
10200
8680
7530
26900
23300
18500
14100
11600
9890
8590
31400
26600
20700
15300
12400
10600
9240
36000
30000
22700
16300
13100
11300
9800
10
1%
42300
1
WEIGHTED SKEW =
100
140
247
12
20
.7
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
385
40
56
14
.7
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1930-82
80%
128
167
221
34
39
53
74
106
190
-.081
9650
8490
7330
6310
5330
4650
3
7
15
30
60
90
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1930-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
7130
10%
5320
15%
4110
20%
3260
25%
2560
30%
2050
40%
1280
50%
724
60%
482
70%
346
75%
288
80%
231
85%
176
90%
127
95%
78
101
JOHN DAY RIVER BASIN
14048000
JOHN DAY RIVER AT MCDONALD FERRY, OR
LOCATION.--Lat 45'35'16", long l2O24'30', In NE*NW* sec.1l, T.l N., R.19 E., Sherman County, Hydrologic Unit 17070204, on left bank
at McDonald Ferry, 0.8 ml downstream from Rock Creek, 10 ml east of Kiondike, and at mile 20.9.
DRAINAGE AREA.--7,580 mi2, approximately.
PrIor to Oct. 1, 1930, published as "at McDonald."
PERIOD OF RECORD.--December 1904 to September 1982.
Prior to Aug. 30. 1930.
GAGE.--Water-stage recorder. Datum of gage is 392.27 ft National Geodetic Vertical Datum of 1929.
nonrecording gage at same site and datum.
REIIARKS.--No regulation.
Many diversions for irrigation above station.
AVERAGE DISCHARGE.--77 years (water years 1906-82), 2,036 ft3/s, 1,475,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximtjn discharge, 42,800 ft3/s Dec. 24. 1964, gage height, 13.59 ft, from floodmark, from rating
curve extended above 11,000 ft3/s on basis of slope-area measurement of peak flow; no flow for part of Sept. 2, 1966, Aug. 15 to
Sept. 16, 1973, Aug. 13, 14, 19-25, 1977.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of 1894 reached a stage of 12.8 ft. from floodmarks, discharge, 39,100 ft3/s, from rating
curve extended above 22,000 ft3/s.
STATISTICAL SIJIMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
1906-82
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1907-82
STANDARD
DEVIAMINIMUM
(CFS)
MONTH
OCTOBER
60
NOVEMBER
DECEMBER
157
221
JANUARY
FEBRUARY
217
374
557
964
533
376
88
MARCH
APRIL
MAY
JUNE
JULY
ANNUAL
(CFS)
657
2310
7030
6402
8882
10260
10560
13180
9531
MEAN
(CFS)
309
587
1199
1664
TION
(CFS)
ATION
.42
1.3
375
1177
1452
1945
.64
.98
2.4
4.9
6.8
.87
.76
.55
.41
2101
24
588
523
183
171
135
107
.63
.70
.74
.63
603
3850
2036
841
.41
5.7
2037
2327
2697
450
2
5
10
20
50
100
DAYS)
50%
20%
10%
5%
2%
1%
88
89
40
42
45
47
24
15
17
tO
19
21
12
54
73
103
146
34
47
262
1
3
7
93
14
22.9
60
90
111
113
144
179
21.1
11.1
120
183
233
398
30
7800
2
12100
5
20%
18600
10
25
50
100
10%
4%
2%
1%
23100
28900
33300
110
22
32
54
85
63
51
207
169
133
112
73
13
19
14
38
29
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD
1906-82
PERIOD
(CONSECU-
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
TIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
11200
10300
17000
15400
13200
11100
20900
18600
29500
25300
20700
33200
28000
22600
17000
14400
12500
11000
37800
1
WEIGHTED SKEW =
ii
100
IN CFS. FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
5.4
6.9
7.8
8.2
8.5
8.2
.7
.7
DISCHARGE,
1.25
26
28
30
2.6
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1906-82
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL. IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
TIVE
10.4
15.0
.52
1710
PERIOD
(CONSECU-
RUNOFF
131
2549
3685
5621
5176
2727
644
AUGUST
SEPTEMBER
MAXIMUM
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
-.138
3
7
15
8980
7820
6710
5730
5040
30
60
90
9470
8120
7120
15800
12900
11000
9450
8270
25900
22600
18700
14800
12500
10900
9510
15900
13500
11700
10300
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1906-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
7890
10%
5860
15%
4590
20%
3560
25%
2850
30%
2250
40%
1370
50%
776
60%
516
70%
376
75%
314
80%
254
85%
195
90%
137
95%
84
102
DESCHIITES RIVER BASIN
14050000
-
DESCHUTES RIVER BELOW SNOW CREEK, NEAR LA PINE, OR
LOCATION.--Lat 43'48'51", long 12146'33", In NW* sec.28, T.20 S., R.8 E., Deschutes County, Hydrologic Unit 17070301, in Deschutes
National Forest, on left bank at flow line of Crane Prairie Reservoir, 20 ft downstream from Snow Creek, 300 ft upstream from
highway bridge, and 17 mi northwest of La Pine.
DRAINAGE AREA.--132 mi2, including Sparks, Elk, and Mud Lake basins, which have no surface outflow to Deschutes River; hydrologic
drainage boundary uncertain owing to ground-water exchange.
PERIOD OF RECORD.--October 1937 to September 1982.
Lapine" 1937-64.
Monthly discharge only October 1937, published in WSP 1318.
Published as "near
GAGE.--Water-stage recorder. Altitude of gage is 4,445 ft, from elevation of Crane Prairie Reservoir when slack water extended to
gage.
Prior to Sept. 10, 1938, nonrecording gage at site 450 ft downstream at different datum.
REMARKS.--N0 regulation. Crater Creek Canal diverts water to Tumalo Creek basin from tributaries of Soda Creek.
fed and peak discharge may occur several months after the precipitation which caused it.
Stream is spring
AVERAGE DISCHARGE.--45 years, 149 ft3/s, 108,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum dIscharge. 480 ft3/s Aug. 19, 1974, gage height, 3.17 ft; maximum gage height, 4.12 ft
Jan. 21, 1943 (Ice jam); minimum discharge, 40 ft/s sometime during period Dec. 22, 1959, to Mar. 2, 1960, result of freezeup;
minimum daily, 55 ft3/s for many days April to June 1941.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
MEAN
ICFS>
STANDARD
DEVIATION
ICFSI
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1939-82
1938-82
PERCENT
COEFFI-
dENT OF
OF
ANNUAL
RUNOFF
VARIATION
PERIOD
ICONSECUlIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
64
62
62
60
60
63
419
457
408
225
212
ANNUAL
66
243
149
61
59
59
58
56
58
315
236
205
173
146
69
131
192
173
166
195
267
331
117
106
42
34
28
99
24
103
28
51
.32
94
.29
.26
.24
.27
.38
.43
.47
.48
.44
46
.31
135
51
161
69
183
87
109
9.7
8.2
7.3
6.5
5.9
.40
.35
1
3
7
14
30
178
2
5
20%
261
355
10
10%
413
25
4%
481
50
2%
527
10%
82
83
71
71
66
66
84
85
86
72
67
73
75
78
68
81
93
72
74
79
120
100
106
9.0
183
123
84
10
69
71
20
5%
50
2%
100
61
56
57
58
59
60
60
60
60
60
53
62
63
64
65
65
66
67
70
1%
54
54
54
54
55
55
55
55
10.2
12.6
11.8
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
1938-82
BASED ON PERIOD OF RECORD
PERIOD
(CONSECU-
100
lIVE
DAYS)
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
2
50%
5
10
10%
25
4%
50
2%
100
20%
354
352
350
346
338
320
295
402
452
451
482
482
507
401
399
396
389
369
343
450
448
442
424
395
481
507
508
1%
570
261
259
257
253
246
231
1
WEIGHTED SKEW =
5
20%
94
60
90
DISCHARGE, IN CFS, FOR INDICATEO RECURRENCE INTERVAL. IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
50%
2
50%
5.5
5.8
7.5
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1938-82
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
-.440
3
7
15
30
60
90
213
480
475
459
430
508
504
490
462
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1938-82
DISCHARGE,
5%
307
10%
260
15%
231
20%
209
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25
190
30%
173
40%
47
50%
126
60%
108
70%
75%
80%
85%
90%
95%
95
91
88
84
81
76
103
DESCHUTES RIVER BASIN
14050500
CULTIJS RIVER ABOVE CULTUS CREEK, NEAR LA PINE, OR
LOCATION.--Lat 4349'06", long l2147'4O", near line between secs.2O and 29, 1.20 S., R.8 E., Deschutes County, Hydrologic Unit
17070301, Deschutes National Forest, on left bank at highway culvert, 2 ml upstream from Cultus Creek, and 18 ci northwest of
La Pine.
DRAINAGE AREA.--16.5 m12, hydrologic drainage boundry uncertain owing to ground-water exchange.
Monthly discharge only October 1937, published in
PERIOD OF RECORD.--October 1922 to September 1925, October 1937 to September 1982.
WSP 1318. Prior to Oct. 1, 1964, published as "near Lapine."
GAGE.--Water-stage recorder and cement bag control. Altitude of gage is 4,450 ft, by barometer.
nonrecording gage at site 0.5 mi upstream at different datum.
Oct 1,
1922, to Sept. 30,
1925,
REMARKS.--No regulation or diversions above station.
AVERAGE DISCHARGE.--48 years, 62.3 ft3/s, 45,140 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 178 ft3/s May 31, 1956, gage height, 1.04 ft; maximum gage height, 1.32 ft May 16,
1972 (backwater from Crane Prairie Reservoir); minimum discharge, 26 ft3/s May 26-31, Nov. 23 to Dec. 4, 1959.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
MEAN
(CFS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
32
93
31
91
34
32
30
32
88
86
84
31
36
34
37
38
34
96
142
136
126
117
103
74
75
74
68
ANNUAL
36
97
62
81
STANDARD
DEVIATION
(CFS)
63
60
56
18
53
50
13
50
54
ii
71
24
23
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1924-82
1923-82
COEFFI-
PERCENT
dENT OF
OF
.28
.27
.26
.24
.22
.21
.24
.34
16
15
(CONSECUTIVE
DAYS)
ANNUAL
RUNOFF
VAR1ATION
PERIOD
8.5
1
8.0
7.5
3
7.1
14
7
6.7
6.7
7.2
60
90
.31
9.5
9.8
120
183
18
.28
.28
.27
10.0
9.8
9.1
14
.22
11
13
21
20
30
2
50%
5
20%
10
25
10%
4%
50
2%
PERIOD
(CONSECUTIVE
100
1%
DAYS)
68
88
WEIGHTED SKEW =
1t3
129
148
161
5
10
20
50
100
20%
10%
5%
2%
1%
42
43
43
44
45
47
49
50
54
36
36
36
37
38
40
40
41
44
32
33
33
33
30
30
30
27
27
35
36
32
33
34
34
36
25
26
26
26
28
28
29
29
30
31
36
37
39
28
28
29
30
31
31
32
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD
1923-82
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
2
50%
100
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1923-82
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
10
25
50%
20%
10%
4%
87
lii
110
126
124
122
118
114
108
106
144
142
138
133
127
120
118
50
2%
100
157
154
169
166
150
161
144
137
129
126
154
146
136
134
1%
174
-.050
86
85
83
5
7
15
30
60
90
81
79
77
108
105
102
97
95
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1923-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
99
10%
15%
20%
25%
30%
40%
50%
60%
70%
75%
80%
85%
90%
95%
92
88
82
75
70
64
59
54
50
48
46
43
41
38
DESCHUTES RIVER BASIN
104
CULTUS CREEK ABOVE CRANE PRAIRIE RESERVOIR, NEAR LA PINE, OR
14051000
LOCATION.--Lat 4349'17", long 121°49'22", in SW, sec.19, T.20 S., R.8 E., Desehutes County, Hydrologic Unit 17070301, on left bank
1,000 ft upstream from highway bridge, 1.0 mi downstream from Cultus Lake, and 19 ml northwest of La Pine.
DRAINAGE AREA.--33.2 ni2, hydrologic drainage boundary uncertain owing to ground-water exchange.
PERIOD OF RECORD.--March to September 1924 (published as "above Crane Prairie, near Lapine"), October 1937 to September 1982.
Monthly discharge only October i937 to September 1949, published in WSP 1318. Records for October i923 to February i924,
Published as "near Lapine" 1937-64.
published in WSP 594, have been found to be unreliable and should not be used.
Mar.
GAGE.--Water-stage recorder. Altitude of gage is 4.545 ft, by barometer.
upstream at different datum.
1
to Sept. 30, 1924, nonrecording gage at site 100 ft
No diversion above station.
REMARKS.--Some regulation by fish screens at Cultus Lake since 1962.
AVERAGE DISCHARGE.--45 years (water years 1938-82>, 22.6 ft3/s, 16,370 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 336 ft3/s Dec. 25, i964, gage height, 4.i5 ft, from floodmark, from rating curve
extended above 90 ft3/s; no flow at times.
STATISTICAL SUMMARIES (BEFORE THE INSTALLATION OF FISH SCREENS)
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIATION
ICFS)
(CFS)
(CFS)
ICFS)
0.0
0.0
0.0
0.0
2.4
2.7
5.6
9.0
3.9
37
52
127
143
65
.2
16
15
18
AUGUST
SEPTEMBER
0.0
ANNUAL
5.1
17
19
17
20
13
44
1
2.2
6.4
6.9
7.3
6.4
8.2
23.0
26.7
9.9
3
4.3
i.8
1.20
9.9
.43
8.7
31
27
17
ii
37
5.8
1.5
6.0
.4
1.64
.99
.89
.65
.49
.48
.50
.50
.63
.75
22
63
73
23
(CONSECUTIVE
DAYS)
1.71
17
i8
PERIOD
COEFFI- PERCENT
CIENT OF
OF
VAR>ANNUAL
ATION
RUNOFF
2.0
9.8
1.2
6.0
49
52
68
57
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1939-62
1924-62
60
2
5
20%
101
I 64
10
10%
209
25
4%
268
iOO
1%
.1
-0.0
.3
.7
2
4
.1
.1
.2
.1
1.1
4
.2
.1
.2
.5
90
.9
120
183
2.0
5.7
2.1
.5
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1924-62
50
100
2%
1%
PERIOD
ICONSECUTIVE
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
2
50%
25
4%
50
2%
224
222
2)3
194
250
248
237
215
171
188
138
i1O
151
10
5
20%
iO%
187
100
1%
313
7
97
15
91
30
82
154
153
147
136
122
50
67
55
99
80
101
1
WEIGHTED SKEW =
10%
7
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
5
20%
50
2%
20
5%
10
2
50%
14
30
60
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1924-62
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL. IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
-.211
3
100
90
185
177
i64
145
117
94
120
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1924-62
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
90
10%
15%
20%
25%
30%
40%
50%
63
47
37
30
25
lB
13
60%
8.2
70%
3.8
75%
2.4
80%
1. 3
85%
.5
90%
.2
95%
.1
105
DESCHUTES RIVER BASIN
CULTUS CREEK ABOVE CRANE PRAIRIE RESERVOIR, NEAR LA PINE, OR--Continued
14051000
STATISTICAL SUMMARIES (AFTER THE INSTALLATION OF FISH SCREENS)
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1964-82
1963-82
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
STANDARD
DEVIAMONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
MEAN
(CFS)
TION
(CFS)
COEFFI- PERCENT
OF
CIENT OF
VARIANNUAL
ATION
PERIOD
ICONSECU-
TIVE
RUNOFF
OCTOBER
NOVEMBER
DECEMBER
0.0
JANUARY
FEBRUARY
.1
.2
.4
MARCH
0.0
0.0
APRIL
1.8
13
18
MAY
JUNE
AUGUST
2.5
0.0
SEPTEMBER
0.0
ANNUAL
3.0
JULY
6.2
1.4
4.6
5.3
5.2
2.24
1.22
1.04
.70
.54
.73
.57
.46
.69
.83
1.00
1.1
1.6
1.44
.6
3.8
16
80
21
22
76
55
27
23
68
46
83
21
17
19
13
15
45
21
176
71
27
49
22
71
15
6.1
9.6
22
38
.2
3
10.2
8.9
7.8
14
--
30
17.1
27.2
2.0
.4
2
50%
5
20%
--
60
.1
0.0
90
120
183
.3
.1
10.1
20
50
100
5%
2%
1%
.9
.3
5.4
2.4
--
0.0
0.0
--
0.0
0.0
.2
1.4
.1
.8
LOW-FLOW STATISTICS UNCERTAIN DUE TO EXCESSIVE
ZERO EVENTS.
NOTE:
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1963-82
10
25
50
100
10%
4%
2%
1%
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE,
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
10
10%
7
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
80%
50%
1
1.4
8.1
6.5
.50
11
5
20%
2
DAYS)
PERIOD
(CONSECU-
TIVE
2
DAYS)
50%
97
95
1
3
7
WEIGHTED SKEW =
91
85
75
58
46
15
30
60
90
5
20%
10
25
50
100
10%
4%
2%
1%
165
162
153
140
122
94
73
217
287
276
257
227
194
147
110
90%
95%
210
198
178
154
117
90
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1963-82
DISCHARGE,
5%
82
10%
57
15%
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
20%
25%
30%
40%
50%
32
28
24
18
13
60%
8.3
70%
3.3
75%
1.8
80%
.8
85%
.3
.1
0.0
106
DESCHUTES RIVER BASIN
DEER CREEK ABOVE CRANE PRAIRIE RESERVOIR, NEAR LA PINE, OR
14052000
LOCATION.--Lat 43°48'48", long 12190'18", in SE+Slt sec.25, 1.20 S., R.7 E. , Deschutes County, Hydrologic Unit 17070301, on right
bank 150 ft downstream fran highway bridge, 1.2 ml downstream from Little Cultus Lake, and 19 mi northwest of La Pine.
DRAINAGE AREA.--21.5 mi2, hydrologic drainage boundary uncertain owing to ground-water exchange.
October 1937 to September 1982.
PERIOD OF RECORD.--February to September 1924 Ipubl ished as "above Crane Prairie, near Lapine") .
Monthly discharge only October 1937 to September 1949, published in WSP 1318. Records for October 1923 to January 1924, published
Published as "near Lapine" 1937-64.
in WSP 594, have been found to be unreliable and should not be used.
to Sept. 30, 1924,
Altitude of gage is 4,520 ft, by barometer. Feb.
GAGE.--Water-stage recorder and sharp-crested weir control.
Oct. 1, 1937, to Sept. 30, 1938, water-stage recorder at bridge 150
nonrecording gage at site 75 ft upstream at various datums.
ft upstream at different datum.
Oct. 1, 1938, to Aug. 13, 1968, water-stage recorder and wooden weir control at present site and
datum 0.60 ft higher.
1
REMARKS.--No regulation or diversion above station.
AVERAGE DISCHARGE.--45 years (water years 1938-82), 7.48 ft3/s, 5,420 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 200 ft3/s, estimated, Dec. 25, 1964; no flow at times.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1939-82
1938-82
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
STAN-
MINIMUM
MONTH
(CFS)
MAXIMUM
(CFS)
DARD
DEVIAlION
MEAN
ICFS)
(CFS)
PERIOD
COEFFI- PERCENT
CIENT OF
OF
ANNUAL
VARIATION
RUNOFF
ICONSECIJ-
TIVE
2
50%
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
0.0
0.0
14
.1
30
.1
21
2.0
6.1
JUNE
JULY
.6
AUGUST
SEPTEMBER
0.0
7.4
1.2
0.0
.7
ANNUAL
1.2
0.0
.4
1.21
.4
2.6
7.4
5.6
1.24
1.04
2.3
7.9
7.5
7.3
6.7
12.9
6.7
6.5
6.0
24
32
33
55
61
.1
.6
1.4
.3
2.1
7.1
5.1
.84
.78
4.8
.81
6.1
.4
.3
.52
.47
.86
.89
.73
.2
.2
.80
7.5
3.5
.46
12
29
14
18
15
2.4
15
2.1
80%
32
5
50%
20%
51
80
10
10%
101
25
4%
128
50
2%
i48
100
--
--
1%
7
14
30
60
90
.4
120
183
19.5
2.6
.1
.1
0.0
.1
.1
.1
.1
0.0
0.0
1.2
.5
.3
.2
.1
.1
LOW-FLOW STATISTICS UNCERTAIN DUE TO EXCESSIVE
ZERO EVENTS.
NOTE:
.4
1
2
.2
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1938-82
IN CFS, FOR INDICATED RECURRENCE
IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE,
IN
INTERVAL,
PERIOD
ICONSECUTIVE
DAYS)
100
1%
100
1%
169
1
WEIGHTED SKEW =
50
2%
1
32.2
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
10%
3
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1938-82
1.25
20
5%
10
5
20%
-.162
3
7
15
30
51
74
86
50
46
40
71
81
65
74
66
58
44
33
57
49
37
28
34
25
60
90
19
97
90
82
74
66
104
109
96
87
100
90
82
79
51
55
38
41
75
58
44
85%
90%
95%
71
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1938-82
DISCHARGE,
5%
36
10%
15%
20%
22
15
11
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
8.6
30%
7.0
40%
4.6
50%
2.8
60%
1.4
70%
.6
75%
.4
80%
.2
.2
.1
0.0
107
DESCHUTES RIVER BASIN
14052500
QUINN RIVER NEAR LA PINE, OR
LOCATION.--Lat 4347'03", long 12150'O6", in SWNWJ sec.1, T.21 5., V.7 E., Deschutes County. Hydrologic Unit 17070302, Deschutes
National Forest, on left bank at flow line of Crane Prairie Reservoir, 150 ft downstream from springs at head of river, and 18 ml
northwest of La Pine.
DRAINAGE AREA.--lndetermlnate, normal flow is entirely from springs 150 ft upstream.
PERIOD OF RECORD.--June 1922 to September 1925, October 1937 to September 1982. Published as "above Crane Prairie Reservoir near
Lapine" 1922-25, and as 'near Lapine" 193-64. Monthly discharge only October 1937, published in WSP 1318.
Datum of gage is 4,442.1 ft National Geodetic Vertical Datum of 1929, based on
GAGE.--Water-stage recorder and log control.
elevation of Crane Prairie Reservoir when slack water reached station. June 1, 1922, to Sept. 30. 1925, nonrecording gage at site
150 ft downstream at different datum.
REMARKS.--No regulation or diversion above station.
AVERAGE DISCHARGE.--48 years, 23.8 ft3/s, 17,240 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge. 59 ft3/s July 4, 1949, gage height, 1.97 ft; maximum gage height, 3.92 ft June 25,
1943 (backwater fran Crane Prairie Reservoir); practically no flow Nov. 14, 1941.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFSI
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
MEAN
(CFS)
39
36
1.8
.8
STANDARD
DEVIATION
(CFS)
10
12
.37
.37
.37
.36
33
12
.37
51
.39
.41
AUGUST
SEPTEMBER
31
12
44
27
11
ANNUAL
5.0
41
24
JUNE
JULY
32
37
38
42
49
53
54
.48
.42
.38
.38
8.0
ICONSECUTIVE
DAYS)
7.5
6.6
6.4
6.6
6.8
7.0
7.7
9.2
.47
9.0
7.7
7.3
7.5
7.6
8.2
9.8
31
PERIOD
COEFFI- PERCENT
CIENT OF
OF
VAR?ANNUAL
ATION
RUNOFF
22
19
18
19
20
20
22
27
32
2.2
4.0
4.0
5.0
5.4
6.4
7.3
7.0
4.7
3.5
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
1939-82
BASED ON PERIOD OF RECORD
1938-82
17
-8.9
9.2
9.7
90
18
10
120
183
18
II
19
12
7
11.0
11.4
10.7
14
16
30
60
16
80%
28
50%
20%
38
48
10
10%
54
25
4%
61
66
50
2%
--
--
100
1%
-5.3
5.8
6.3
6.9
7.4
8.6
3.1
3.6
4.1
4.7
5.2
6.3
1.5
1.9
2.3
2.8
3.3
4.2
.9
1.2
1.5
1.9
2.3
3.1
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
1938-82
BASED ON PERIOD OF RECORD
PERIOD
100
1%
DISCHARGE, IN CES. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
SECUTIVE
2
5
DAYS)
50%
20%
10%
38
38
38
38
37
36
48
48
48
53
52
52
47
51
46
45
44
50
49
10
25
4%
50
2%
100
56
55
55
54
53
52
50
58
57
56
56
55
53
60
57
52
57
57
56
54
53
85%
90%
95%
1%
71
1
WEIGHTED SKEW =
20
5%
100
.33
50
2%
10%
9.2
ICON5
5
20%
1
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
10
2
50%
3
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1938-82
1.25
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
3
7
-.243
15
30
60
90
35
47
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1938-82
DISCHARGE,
5%
46
IN CFS. WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
10%
15%
20%
25%
30%
40%
50%
60%
70%
75%
80%
41
37
34
32
30
26
24
20
18
16
15
1
3
11
8.4
108
DESCHUTES RIVER BASIN
DESCHUTES RIVER BELOW CRANE PRAIRIE RESERVOIR, NEAR LA PINE, OR
14054000
sec.16, T.21 S., R.8 E., Oeschutes County, Hydrologic Unit 17070301, Deschutes
downstream from Crane Prairie Dam, 15 mu northwest of La Pine, and at mile 238.2.
LOCATION.--Lat 4345'13", long 12145'57", In SWNW
National Forest, on left bank 0.1 nil
DRAINAGE AREA.--254 n12, hydrologic drainage boundary uncertain owing to ground-water exchange.
PERIOD OF RECORD.--August 1907 to November 1908 and August 1912 to September 1913 (fragmentary), October 1913 to September 1917,
February 1922 to September 1982. Monthly discharge only for some periods, published iii WSP 1318. Prior to October 1949,
published as "at Crane Prairie, near Lapine."
Published as "near Lapine" 1949-64.
GAGE.--Water-stage recorder. Datum of gage Is 4,419.78 ft National Geodetic VertIcal Datum of 1929 (Pacific Power & Light Co. bench
mark). Aug. 15, 1907, to Sept. 30, 1917, and Feb. 23 to June 8, 1922, nonrecording gage at site 0.5 mi upstream at different
datums.
June 9, 1922, to May 9, 1932, nonrecording gage or water-stage recorder at present site and datum.
No diversion above station.
REMARKS.--FIow regulated since 1922 by Crane Prairie Reservoir.
AVERAGE DISCHARGE.--64 years, 211 ft3ls, 152,900 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum dIscharge, 1,170 ft3/s July 28, 1947, gage height. 3.34 ft; no flow Nov. 15, 1978, when gates
in Crane Prairie Dam were closed.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIATION
(CFS)
(CFS)
(CFS(
ICFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1924-82
1923-82
PERIOD
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
13
5.2
3.3
3.4
5.6
5.0
7.7
ANNUAL
206
145
105
97
102
700
489
119
109
334
380
270
370
750
782
647
709
19
635
333
362
343
290
101
323
206
14
107
AUGUST
SEPTEMBER
675
117
159
94
.89
.74
.76
.72
.64
72
77
70
83
97
130
124
126
251
8.4
5.9
4.3
3.9
.57
1.10
128
130
139
.49
.38
.35
.38
.48
56
.27
2
5
50%
20%
10
10%
25
4%
33
10%
20
5%
9.1
4.7
9.8
5.2
2.6
2.9
5.6
7.3
3.2
4.4
8.8
5.7
7.0
8.3
9.7
11
13
15
18
11
14
16
41
35
44
57
120
183
70
23
29
117
62
28
100
50
2%
1%
1.3
.8
.9
1.4
1.6
.9
1.6
2.4
2.8
3.0
3.2
2.4
3.4
4.0
4.6
5.1
12
18
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1923-82
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
5
20%
30
60
90
4.1
3.9
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
808
10
2
50%
27
28
30
1
3
7
14
5.3
10.2
13.5
14.7
13.9
11.8
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEOANCE PROBABILITY, IN PERCENT
50
100
2%
1%
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE,
PERIOD
(CONSECU-
50
100
2%
1%
771
924
914
1040
1020
740
861
709
655
565
826
763
650
605
952
915
845
714
1150
1140
1040
1000
928
778
738
2
5
50%
20%
10%
512
507
7
15
501
481
30
447
395
358
569
663
645
618
571
497
454
778
3
1
WEIGHTED SKEW =
25
4%
TIVE
DAYS)
60
90
10
520
671
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1923-82
DISCHARGE,
5%
22
0%
435
15%
379
20%
338
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
300
30%
270
40%
220
50%
174
60%
139
70%
75%
80%
85%
90%
95%
97
71
51
38
23
12
109
DESCHUTES RIVER BASIN
14054500
BROWN CREEK NEAR LA PINE, OR
LOCATION.--Lat 43°42'57", long 121°48'lO", in NE*SW sec.29, T.21 S., R.8 E., Deschutes County, Hydrologic Unit 17070301, in
Deschutes National Forest, on right bank at highway crossing end 15 ml northwest of La Pine.
DRAINAGE AREA.--21 mi2, approximately, hydrologic drainage boundary uncertain owing to ground-water exchange.
Monthly discharge only July 1938 to September 1949,
PERIOD OF RECORD.--June 1922 to September 1925, July 1938 to September 1982.
published in WSP 1318. Prior to Oct. 1, 1964, published as 'near Lapine."
May 24, 1922, to Sept. 30. 1925, nonrecording
GAGE.--Water-stage recorder. Altitude of gage is 4,370 ft. from topographic map.
Nov. 2, 1945, to
gage, and July 1, 1938, to Nov. 1, 1945, water-stage recorder at site 0.4 ml downstream at different datums.
Aug. 25, 1971, water-stage recorder at site 0.8 ml upstream at datum of 4,372.94 ft National Geodetic Vertical Datum of 1929.
REMARKS.--No regulation.
No diversion above station.
AVERAGE DISCHARGE.--47 years, 38.3 ft3/s, 27,750 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 104 ft3/s Aug. 4, 1956, gage height, 1.64 fl-; maximum gage height, 3.50 ft Jan.
30, 1980, backwater from ice; minimum discharge, 16 f-t3/s July 22-25, 1941. and at times December 1941 to March 1942.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXII-IUM
ICFS)
ICES)
18
18
MEAN
ICFS)
66
62
55
53
16
16
54
56
17
17
(CFS)
42
40
38
71
17
STANDARD
DEVIAlION
.31
12
.31
.30
11
9.7
8.9
8.9
9.8
13
69
17
18
39
13
42
14
17
75
77
70
43
14
.32
.33
.33
.34
.32
18
59
38
10
.26
12
(CONSECUTIVE
DAYS)
9.0
8.7
8.2
7.7
7.5
7.4
7.9
.27
.26
.26
.27
18
17
71
PERIOD
COEFFI- PERCENT
CIENT OF
OF
ANNUAL
VARIATION
RUNOFF
13
36
34
34
37
37
38
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PER 100 OF RECORD 1924-82
1923-82
1
3
7
30
60
90
8.3
8.5
9.2
9.3
80%
40
5
50%
20%
52
67
10
10%
76
25
4%
87
50
100
2%
1%
96
23
23
23
23
20
20
20
24
21
21
24
25
26
27
21
22
22
23
50
100
2%
1%
18
18
16
16
16
16
15
15
18
18
19
17
17
19
19
17
20
17
21
18
15
15
15
15
15
16
16
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1923-82-
PERIOD
(CONSECUlIVE
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS. AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
10
25
50
100
10%
4%
2%
1%
63
71
69
79
76
75
75
84
61
61
89
86
5
20%
104
50
49
48
48
48
47
1
WEIGHTED SKEW =
29
29
29
20
5%
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
10%
32
33
35
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1923-82
1.25
5
20%
31
120
183
10
2
50%
30
30
14
8.1
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
-.046
3
7
15
30
60
90
45
61
60
59
57
68
68
67
66
64
81
85
71
80
80
79
78
76
74
73
85
83
82
80
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1923-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
61
10%
i5%
20%
25%
30%
40%
50%
60%
70%
75%
80%
85%
90%
95%
56
53
50
47
45
41
37
34
3i
29
28
27
25
20
110
DESCHUTES RIVER BASIN
14055500
ODELL CREEK NEAR CRESCENT, OR
LOCATION.--Lat 43°32'51", long 121°57'41', in SWSW sec.25, T.23 S., R.6 E., Klarnath County, Hydrologic Unit 17070301, on left bank
1,000 ft downstream from Odell Lake, 3 ml north of town of Crescent Lake, and 14 ml northwest of Crescent.
DRAINAGE AREA.--39.0 m12.
PERIOD OF RECORD.--August, September 1911, August, September 1912, January, February, May to November 1913, April to August 1914,
December 1923 to June 1924, lay 1933 to September 1q76. Gage heights and discharge measurements only August, September 1911,
January 1913.
Records for January to July 1912, published in WSP 332, have
Published as Odell Lake outlet near Crescent 1911-12.
been found to be unreliable and should not be used.
Prior to June 7, 1924,
GAGE.--Water-stage recorder. Datum of gage is 4.799.05 ft National Geodetic Vertical Datum of 1929.
nonrecording gage at several sites within 700 ft of present site at various datums.
REMARKS.--Flow affected occasionally in winter by ice jams at outlet of Odel I Lake, and slightly affected at times by seiches in
Odell Lake.
No diversion above station.
AVERAGE DISCHARGE.--43 years Iwater years 1933-761, 82.5 ft3/s, 28.73 in/yr, 59,770 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 1,100 ft3/s Dec. 25, 1964, gage height, 2.60 ft, from rating curve eatended above
250 fF3/s; minimum, 9 ft3/s sometime during period Sept. 7-30, 1934.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIATION
(CFSI
(CFSI
(CFS)
(CFSI
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1935-76
1934-76
PERIOD
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
ICONSECUlIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
21
112
52
20
30
42
47
46
185
29
52
180
83
102
103
90
79
80
113
38
337
218
160
177
.51
38
.37
25
24
.28
17
.21
28
44
.24
.34
.31
46
62
48
111
220
129
27
75
44
31
.41
19
41
15
.42
.36
83
20
.25
AUGUST
SEPTEMBER
20
17
139
78
69
ANNUAL
47
120
5.3
8.3
10.3
10.4
9.1
8.0
.38
.36
1
3
7
8.1
11.4
13.0
7.6
4.5
171
5
50%
20%
236
345
10
10%
430
25
4%
5C
100
2%
1%
9.6
9.9
27
29
19
15
16
13
14
11
20
17
19
15
16
12
13
11
20
22
25
28
39
17
14
16
13
14
31
14
32
23
35
37
41
24
27
29
46
59
34
45
19
11
12
21
18
16
25
34
21
19
27
30
100
50
100
2%
1%
662
50
5%
30
60
90
120
183
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1934-76
PERIOD
(CONSECUTIVE
DAYS)
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
50
100
2%
1%
682
186
546
520
461
366
274
217
162
185
201
845
802
694
517
348
263
218
25
4%
10
2
5
50%
20%
10%
209
310
297
400
383
345
285
228
781
1
WEIGHTED SKEW =
20
10%
4.1
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
10
20%
2
50
21
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1933-76
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
201
187
3
.574
7
166
148
128
115
15
30
60
90
271
232
195
163
143
648
568
437
310
240
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1934-76
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
166
10%
142
15%
126
20%
113
25
3O
40%
50%
60%
70%
75%
80%
85%
90%
95%
t04
96
83
74
65
57
52
47
41
34
27
111
DESCHIJTES RIVER BASIN
14056500
DESCHUTES RIVER BELOW WICKIUP RESERVOIR, NEAR LA PINE, OR
sec.7, T.22 S., 8.9 E., Deschutes County, Hydrologic Unit
1,000 ft downstream from Wickiup Dao, 9 ml west of La Pine, and at mile 226.4.
LOCATION.--Lat 4311'10", long 1214ll3", in NWNE
7070301, on left bank
DRAINAGE AREA.--483 miZ, hydrologic drainage boundary uncertain owing to ground-water exchange.
PERIOD OF RECORD.--June 1938 to September 1982.
Published as "near Lapine"
Monthly discharge only Juno 1938, published in WSP 1318.
1938-64.
Datum of gage is 4,257.41 ft National Geodetic Vertical Datum of 1929 llevels by Bureau of
GAGE.--Water-stage recorder.
Reclamation).
REMARKS.--Flow regulated by Crane Prairie Reservoir, and since 1942 by Wickiup Reservoir. Some leakage from Crane Prairie and
Some spill bypassed station in 1955. Crater Creek canal diverts water above station to
Wicklup Reservoirs does not pass station.
Tumalo Creek basIn.
AVERAGE DISCHARGE.--44 years, 737 ft/s, 534,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maxinum discharge, 2,280 ft3/s July 28 to Aug.
Nov. 10. 1973; minimum daily, 10 ft'/s Jan. 17, 1952.
1,
1956, July 31, Aug.
1, 2, 1962; minimum, 1.9 ft'/s
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
MINIMUM
MAXIMUM
ICES)
(CFS)
16
1200
1050
869
18
851
112
14
16
780
18
721
268
476
638
990
MEAN
(CFS)
599
159
148
187
AUGUST
SEPTEMBER
922
908
832
2079
2123
1698
224
238
535
1029
1354
1671
1532
1233
ANNUAL
552
997
746
JUNE
JULY
1542
1788
STANDARO
DEVIATION
ICFS)
256
217
192
239
249
226
203
227
309
308
286
198
120
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1944-82
1943-82
PERIOD
COEFFI- PERCENT
CIENT OF
OF
ANNUAL
VARIRUNOFF
ATION
ICONSECUlIVE
DAYS)
.43
6.7
1
1.36
1.30
1.28
1.8
1.7
3
2.1
14
1.11
.95
.38
.22
.23
.18
.19
.16
.16
7
50%
20%
10
10%
25
4%
50
2%
10
20
50
100
10%
5%
2%
1%
29
15
11
30
36
38
43
16
18
12
6.0
90
11.6
15.2
18.8
17.2
13.8
120
53
65
183
185
47
19
20
22
23
26
98
9.2
9.9
13
14
15
11
15
15
12
11
11
7.6
8.3
8.8
8.8
9.0
9.2
9.4
17
12
12
10
71
55
41
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1943-82
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
5
5
20%
30
60
DISCHARGE,
2
2
50%
2.5
2.7
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
PERIOD
ICONSECUTIVE
DAYS)
100
1%
1
3
WEIGHTED SKEW =
7
15
30
60
90
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
25
4%
10
2
5
50%
20%
10%
1930
1920
1890
1850
1780
1690
1610
2120
2110
2090
2060
2000
2190
2180
2170
2150
2090
1900
1810
1990
1890
2250
2240
2240
2230
2170
2080
1970
50
2%
100
1%
2280
2270
2280
2270
2220
2120
2010
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1943-82
DISCHARGE,
5%
1880
10%
1700
15%
1540
20%
1420
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
1280
30%
1140
40%
874
50%
645
60%
449
70%
183
75%
80%
85%
90%
95%
78
36
29
25
22
DESCHUTES RIVER BASIN
112
DESCHUTES RIVER AT PRINGLE FALLS, NEAR LAPINE. OR
14057000
Hydrologic Unit 17070301, on left bank
LOCATION.--Lat 4344'2O', long 121°3650', in SW* sec.23, T.21 S., R.9 E., Deschutes County,
0.5 mi upstream from bridge at Pringle Falls, 7 ml northwest of Lapine, and at mile 217.
DRAINAGE AREA.--507 mIZ, hydrologic drainage boundary uncertain owing to ground-water exchange.
PERIOD OF RECORD.--October 1915 to September 1917, June 1922 to September 1952.
in WSP 1318.
Monthly discharge only for some periods, published
Service bench mark).
GAGE.--Water-stage recorder. Datum of gage is 4,243.26 ft National Geodetic Vertical Datum of 1929 (Forest
Prior to June 6, 1922, staff gage at practically same site at datum 3.09 ft higher. June 6, 1922, to Nov. 9, 1947, water-stage
recorder at present site at datum 2.00 ft higher.
Crater Creek Canai diverts
REMARKS.--FIow regulated since 1922 by Crane Prairie Reservoir, and since 1942 by Wickiup Reservoir.
water above station to Ti,nalo Creek basin.
AVERAGE DISCI-IARGE.--32 years (water years 1916-17, 1923-52). 727 ft3/s, 526,300 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximun discharge, 2,160 ft3/s Sept. 4, 8, 1951, gage
height, 5.94 ft; minimum, 27 ft3/s Jan. 19,
1952.
STATISTICAL SUMMARIES (BEFORE THE CONSTRUCTION OF WICKIUP RESERVOIR)
MONTHLY AND ANNUAL MEAN DISCHARGES
!1ONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIATION
ICFS)
(CFS)
ICES)
(CFS)
527
473
469
433
427
419
448
545
587
560
589
533
542
715
657
629
616
636
626
637
988
701
811
1169
1222
1085
866
864
773
132
128
118
114
132
116
115
93
94
142
176
154
872
711
88
947
861
883
882
929
836
881
871
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1924-41
1923-41
PERIOD
COEFFI- PERCENT
CIENT OF
OF
ANNUAL
VARIRUNOFF
ATION
8.4
7.7
7.4
7.2
7.5
7.3
7.5
8.2
9.5
.18
.19
.19
.19
.21
.19
.18
.13
.12
.16
.20
.20
.12
WONSECUTIVE
2
5
10
20
DAYS)
50%
20%
10%
5%
543
544
550
554
560
570
585
596
473
473
477
436
436
439
445
458
466
405
405
407
415
632
547
1
3
7
14
30
60
90
120
183
80%
891
50%
20%
1000
1130
10
10%
1190
25
4%
50
2%
471
479
506
--
431
438
440
448
474
9.1
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1923-41
PERIOD
SECUlIVE
DAYS)
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
50%
20%
10%
25
4%
1100
1090
1090
1080
1060
1020
987
1150
1150
1140
1130
1120
1070
1040
1210
1200
1200
1190
1170
1130
1090
10
50
2%
100
1%
1270
7
989
987
983
15
971
30
60
90
955
919
888
1
WEIGHTED SKEW =
510
517
1%
100
(CON5
501
100
10.1
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
482
492
50
2%
10.2
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1917-41
1.25
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
3
-.151
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1923-41
DISCHARGE. IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
998
10%
948
15%
897
20%
857
25%
817
30%
785
40%
732
50%
692
60%
646
70%
610
75%
592
80%
572
85%
550
90%
527
95%
466
113
DESCHUTES RIVER BASIN
14057000
DESCHIJTES RIVER AT PRINGLE FALLS, NEAR LAPINE, OR--Corrfinued
STATISTICAL SUMMARIES (AFTER THE COMPLETION OF WICKIUP RESERVOIR)
I.IONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1944-52
1943-52
DARD
DEVIAMINIMUM
(CFS)
MONTH
MAXIMUM
MEAN
TION
(CFS)
ICES)
ICFS)
1069
1423
1446
1310
752
128
.17
329
382
AUGUST
SEPTEMBER
273
475
624
922
907
826
740
654
944
1106
1759
1996
2068
1715
ANNUAL
556
958
JANUARY
FEBRUARY
(lARCH
APRIL
MAY
JUNE
JULY
57
50
57
99
69
ATION
.28
.85
.89
.86
.69
.55
.43
.25
.36
.29
.29
.23
802
353
282
509
278
511
808
PERIOD
(CONSECU-
COEFFI- PERCENT
OF
CIENT OF
ANNUAL
VARI-
301
251
239
228
210
219
201
382
418
425
303
1165
1011
857
841
OCTOBER
NOVEMBER
DECEMBER
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE,
STAN-
227
RUNOFF
TIVE
2
5
10
20
50
100
DAYS)
50%
20%
10%
5%
2%
1%
39
42
46
50
59
63
27
29
21
33
25
36
28
43
45
50
75
199
34
35
39
8.9
3.9
3
3.1
3.1
7
14
3.7
4.2
5.7
9.0
30
60
1
90
120
183
11.9
15.8
85
88
92
97
115
127
140
188
101
346
238
14.6
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1943-52
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
PERIOD
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
ICON80%
2
50%
5
20%
59
174
16.1
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
1.25
70
19
10
25
50
100
10%
4%
2%
1%
SECU-
TIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
1660
1640
1590
1540
1500
1990
1970
1930
1910
1870
1810
1740
2180
2160
2140
2130
2100
2050
85%
90%
95%
70
56
1
3
7
15
WEIGHTED SKEW =
30
60
90
1440
1390
1970
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1943-52
DISCHARGE,
5%
1910
10%
1540
15%
1350
20%
1210
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
1110
30%
978
40%
838
50%
679
60%
523
70%
374
75%
314
80%
244
174
DESOHUTES RIVER BASIN
14
14057500
FALL RIVER NEAR LA PINE, OR
LOCATION.--Lat 43'4748", long 121°34'18", in NWSE, sec.31, T.20 S., R.1O E., Deschutes County. Hydrologic Unit 17070301, on left
bank 50 ft downstream fran pond spillway at State fish hatchery. 9 mi northwest of La Pine, and at mile 4.8.
DRAINAGE AREA.--45.1 miu, hydrologic drainage boundary uncertain owing to ground-water exchange.
Records for May to September 1912 at site 3 ml downstream not equivalent owing to
PERIOD OF RECORD.--JuIy 1938 to September 1982.
difference in drainage area. Prior to Oct.
1,
1964, pub Ii shed as 'near Lap i ne."
Altitude of gage is 4,220 ft, by barometer.
GAGE.--Water-stage recorder.
REMARKS.--Diversion only to ponds at fish hatchery 50 ft above station, from which water returns to river above station.
spring fed and momentary extremes are caused by operation of fish hatchery.
Stream is
AVERAGE DISCHARGE.--44 years, 149 ft'/s, 108,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 254 ft/s June 5, 1965, gage height, 2.02 ft; minimum, 67 ft'/s sometime during
period Sept. 20-30, 1969.
STATI STICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1940-82
1939-82
STAN-
DARD
DEVIAMONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
MINIMUM
MAXIMUM
(CFS)
(CFS)
lION
(CFSI
ICFS)
(CON-
TIVE
2
5
DAYS)
50%
20%
132
132
109
109
133
134
136
i38
139
140
142
109
110
207
147
31
.21
8.2
81
199
145
143
30
.21
8.1
3
30
.21
142
142
144
152
29
.20
8.0
7.9
7
14
29
30
33
37
36
.21
7.9
8.0
8.5
8.9
8.8
8.7
8.5
8.4
30
60
90
79
78
78
78
80
80
82
198
191
187
193
AUGUST
SEPTEMBER
86
86
ANNUAL
82
87
159
157
.21
.21
.23
.23
.22
34
32
32
.21
208
156
153
150
202
149
30
.20
.22
1
120
183
5
50%
20%
10
25
4%
10%
113
114
115
117
5%
50
2%
100
73
73
73
73
73
74
75
75
76
97
98
98
98
99
89
89
89
89
90
79
79
79
80
80
101
91
81
102
103
104
92
93
94
81
82
83
1%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1939-82
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
2
111
20
10
1O
100
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
SECIJ-
83
218
233
233
224
218
JUNE
JULY
MEAN
PERIOD
COEFFI- PERCENT
OF
CIENT OF
ANNUAL
VARIRUNOFF
ATION
50
100
2%
1%
PERIOD
(CONSECUTIVE
DAYS)
2
50%
5
25
4%
50
2%
100
216
216
215
214
234
233
244
24
253
253
252
212
209
207
228
225
222
243
243
242
238
235
232
10
20%
10%
200
200
30
60
168
168
167
166
165
163
90
162
192
3
WEIGHTED SKEW =
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
7
15
199
98
196
193
233
231
1%
247
244
241
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1939-82
DISCHARGE,
5%
204
10%
191
15%
184
20%
178
IN
CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
174
30%
169
40%
159
50%
149
60%
141
70%
131
75%
125
80%
119
85%
114
90%
108
95%
99
115
DESOHUTES RIVER BASIN
14060000
CRESCENT CREEK AT CRESCENT LAKE, NEAR CRESCENT, OR
sec.11, T.24 S., R.6 E., Klamath County, Hydrologic Unit 17070302, Deschutes
LOCATION.--Lat 43°30 11', long l2l582O", in SESW
National Forest, on left bank 400 ft downstream from Crescent Lake Dam, 0.5 mi south of town of Crescent Lake, 14 ml west of
Crescent, and at mile 29.9.
DRAINAGE AREA.--60.7 mi2, hydrologic drainage boundary uncertain owing to ground-water exchange.
PERIOD OF RECORD.--January to September 1911 (gage heights and discharge measurements only), January 1912 to July 1915, July to
and
September 1927, May 1928 to September 1982. Published as Crescent Lake outlet near Crescent January 1911 to September 1912,
as Crescent Creek at outlet of Crescent Lake, near Crescent October 1913 to July 1915.
See WSP 1935
Datum of gage is 4,819.96 ft National Geodetic Vertical Detum of 1929.
GAGE.--Water-stage recorder and Parshal I flume.
for history of changes prior to Sept. 11, 1956.
No diversion above station.
REMARKS.--FIow regulated since 1922 by Crescent Lake.
AVERAGE DISCHARGE.--56 years (water years 1913-14, 1929-82), 56.9 ft3/s, 41,220 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 313 ft/s July 9,
1929, Aug. 9, 1936; no flow at times.
STAT I STICAL SUMIIARI ES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1930-82
1929-82
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
STAN-
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
MEAN
ICES)
DARD
DEVIATION
ICES>
PERIOD
COEFFI- PERCENT
OF
CIENT OF
ANNUAL
VARIRUNOFF
ATION
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
ANNUAL
22
47
135
146
148
147
166
148
14
18
23
41
24
1.85
1.76
1.49
.99
.73
.39
.44
.98
.57
14
16
56
104
163
276
250
151
0.0
69
36
55
76
63
66
68
8.2
148
57
33
11
2.12
2.06
2.30
2.09
28
32
33
34
173
261
287
14
AUGUST
SEPTEMBER
233
3.3
2.0
80%
5
50%
20%
10
25
10%
4%
50
2%
100
50
2%
20
5%
10
10%
1%
1
2.1
7
2.3
2.7
3.4
3.6
8.3
15.4
24.2
14
30
60
90
120
183
LOW-FLOW STATISTICS UNCERTAIN DUE TO EXCESSIVE
ZERO EVENTS.
NOTE:
22.4
10.3
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1929-82
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
5
20%
3
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
1.25
2
50%
PERIOD
(CONSECUTIVE
DAYS)
100
1%
1
2
5
10
25
50
100
50%
20%
10%
4%
2%
1%
231
270
267
281
288
285
280
278
272
290
287
291
282
282
277
255
284
284
229
224
214
203
3
WEIGHTED SKEW
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
7
15
30
5)
90
179
153
262
255
246
227
206
278
273
269
262
245
229
259
250
288
280
269
268
260
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1929-82
DISCHARGE, IN CFS. WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
226
10%
187
15%
156
20%
134
25%
102
30%
40%
79
30
50%
8.2
60%
4.9
70%
2.6
75%
1.2
80%
.2
85%
.1
90%
.1
95%
.1
116
DESCHUTES RIVER BASIN
14061000
BIG MARSH CREEK AT HOEY RANCH, NEAR CRESCENT, OR
LOCATION.--Lat 4328'40", long l2154'5O", NWSW, In sec.20, 1.24 S., R.7 E., Kiamath County, Hydrologic Unit 17070302, about 0.5 ml
upstream from mouth, 2 ml east of Crescent Lake, and 11 ml west of Crescent.
DRAINAGE AREA.--51.5 mi2, hydrologic drainage boundary uncertain owIng to ground-water exchange.
PERIOD OF RECORD.--Apri I
1912 to December 1914, May 1928 to September 1930, May 1931 to September 1958.
GAGE.--Water-stage recorder. Altitude of gage is about 4,630 ft (from topographic mapl. Prior to Sept. 8, 1939, staff gages or
water-stage recorder a-I several sites within 0.2 ml of present site at various datums.
REMARKS.--No diversion or regulation above station.
COOPERATION.--Records for 1924, 1928-50, furnished by Oregon Water Resources Department.
AVERAGE DISCHARGE.--21 years (water years 1913, 1930, 1932-50), 64.8 ft3/m.
EXTREMES FOR PERIOD OF RECORO.--Maximum discharge, 581 ft3/s Apr. 20, 1943, gage height, 3.79 ft; maximum gage height, 4.56 ft
Dec. 28, 30. 31, 1945 (backwater from ice); no flow Mar. 27, 1935, result of unusual regulation, but cause unknown.
STATISTICAL SUMMARI ES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1930-58
1913-58
STANDARD
DEVIAMONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MINIMUM
MAXIMUM
(CFS)
(CFS>
ii
10
12
4.7
10
MARCH
26
APRIL
41
MAY
56
JUNE
31
15
10
JULY
AUGUST
ANNUAL
31
TION
(CFS)
ICFS)
68
26
13
133
243
43
65
28
55
180
162
52
53
41
280
336
329
72
249
94
47
34
8.5
SEPTEMBER
MEAN
62
119
49
27
63
25
12
7.9
72
RUNOFF
5
50%
20%
6.1
30
60
90
120
183
8.5
16.7
21.2
14.0
5.8
3.2
2.5
193
2
5
50%
20%
276
397
10
25
50
100
10%
4%
2%
1%
42
594
PERIOD
(CONSECU-
100
2%
1%
16
11
17
11
19
12
20
13
21
24
15
16
30
21
6.2
7.5
8.2
8.5
9.2
ii
12
13
18
4.3
5.8
6.4
6.6
2.7
4.3
4.7
4.8
7.1
5.1
7.1
9.0
10
11
15
8.2
9.5
13
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
TIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
267
260
245
222
204
371
363
437
517
502
459
425
388
573
555
502
466
423
357
296
680
1
WEIGHTED SKEW =
50
5%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1913-58
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
20
10%
100
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1913-58
80%
10
9.0
9.9
15
15
1
3
7
14
7.6
.37
27
2
DAYS)
5.1
6.3
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
lIVE
3.0
.49
.64
.85
.79
.73
.65
.44
.45
.53
.50
.43
.37
81
21
133
ATION
39
47
142
180
PERIOD
(CONSECU-
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
.060
3
7
15
30
60
90
340
426
395
311
364
179
287
249
152
208
335
288
240
331
274
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1913-58
DISCHARGE. IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
240
10%
180
15%
140
20%
115
25%
30%
40%
50%
60%
70%
75%
80%
94
77
56
43
34
28
2
21
85%
90%
95%
9
16
13
117
DESCHLITES RIVER BASIN
14063000
LITTLE DESCHUTES RIVER NEAR LA PINE, OR
LOCATION.--Lat 43'41'21", long 121°30'06", In SW*SW sec.2, 1.22 S., R.10 E., Deschutes County, Hydrologic Unit 17070302, on right
bank 10 ft downstream from highway bridge, 1.1 ml north of La Pine, and at mile 26.8.
DRAINAGE AREA.--859 mi2, hydrologic drainage boundary uncertain owing to ground-water exchange.
PERIOD OF RECORD.--September 1910 to January 1911, March, April, August 1911, March to September 1912, June to October 1913, June to
Monthly discharge only for some periods, published in WSP
November 1918, August to October 1920, May 1924 to September 1982.
1913-20, and as "Little
1318.
Published as "Deschutes River near Lapine' 1910-12, as "East Fork Deschutes River near Lapine'
Deschutes River near Lapine' 1924-64.
Sept. 1, 1910, to Aug. 31,
GAGE.--Water-stage recorder. Datum of gage Is 4,192.81 ft National Geodetic Vertical Datum of 1929.
Mar. 1 to Sept. 30, 1912, nonrecording gage at site 1.2 ml downstream
1911, nonrecording gage at present site at different datum.
at different datum. June 1, 1913, to Sept. 28. 1928, nonrecording gage and Sept. 29. 1928, to Sept. 30, 1931. water-stage
recorder a present site at different datums.
REMARKS.--Flow regulated since 1922 by Crescent Lake.
Many diversions for irrigation above station.
AVERAGE DISCHARGE.--58 years (water years 1925-82), 205 ft3/s, 148,500 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3,660 ft3/s Dec. 25, 1964, gage heIght, 8.18 ft; minimum, 8 ft3/s Sept. 2, 3,
1931.
STAT I STICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MINIMUM
MAXIMUM
(CFS)
(CFS)
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
68
12
350
356
712
656
562
709
716
990
788
470
342
320
ANNUAL
66
374
1-lARCH
17
27
32
35
30
60
83
63
93
30
MEAN
(CFS)
STANDARD
DEVIAlION
(CFS)
83
114
159
154
183
196
291
389
127
108
112
112
149
.70
.61
.57
241
197
118
205
83
1
.52
.52
7
14
5
80%
50%
20%
372
558
WEIGHTED SKEW =
883
10
10%
1150
25
4%
.36
.64
1540
1880
100
2%
1%
17
11
20
13
13
14
15
21
16
31
24
18
12
14
39
45
57
31
24
28
36
10%
47
29
30
22
23
23
25
28
79
90
110
31
33
37
42
50
58
72
18
18
36
46
11
11
12
20
23
31
100
.40
50
2%
50
5
20%
9.8
8.0
4.8
.33
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1925-82
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
20
5%
10
2
50%
60
68
30
60
90
120
183
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1925-82
1.25
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
48
50
53
3
11.9
15.9
13.4
.51
201
(CONSECUTIVE
DAYS)
3.4
4.6
6.5
6.3
7.5
8.0
.73
.54
.80
62
172
80
72
75
PERIOD
COEFFI- PERCENT
OF
CIENT OF
VARIANNUAL
ATION
RUNOFF
61
329
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1926-82
1925-82
PERIOD
(CONSECUlIVE
DAYS)
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
5
25
4%
50
2%
100
1450
1350
1210
1070
1760
1620
1420
1240
1090
2120
10
20%
10%
838
808
757
686
1080
1030
621
763
540
478
661
1%
2260
.422
3
538
527
7
501
460
418
365
329
15
30
60
90
946
848
580
949
820
710
942
809
1920
1650
1410
1240
1070
908
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1925-82
DISCHARGE, IN CFS. WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
546
10%
406
15%
337
20%
298
25%
268
30%
241
40%
199
50%
166
60%
132
70%
103
91
80%
85%
90%
95%
79
68
56
41
118
DESCHUTES RIVER BASIN
14064500
DESCHUTES RIVER AT BENHAM FALLS, NEAR BEND, OR
LOCATION.--Lat 43°55'49", long 12l24'39", in SW*NE sec.16, 1.19 S., R.11 E., Deschutes County, Hydrologic Unit 17070301, Deschutes
National Forest, on right bank 0.5 mi upstream from Benham Falls, 10 mi southwest of Bend, and at mile 181.4.
DRAINAGE AREA.--1,759 rn)2.
PERIOD OF RECORD.--April 1906 to September- 1913, April to Septenber 1914, August to December 1920, April to September 1921, February
1924 to September 1982.
Published as 'at West's ranch, near
Monthly discharge only for some periods, published in WSP 1318.
Lava" April 1906 to February 1909, April to September 1914.
Records for January 1905 to larch 1906 and October 1913 to September
1914, published under present name in WSP 370 and 394, have been found to be unreliable and should not be used.
GAGE.--Water-stage recorder. Datum of gage is 4,142.10 ft National Geodetic Vertical Datum of 1929 (Bureau of Reclamation bench
mark). See WSP 1738 for history of changes prior to Nov. 20, 1958.
REMARKS.--Flow regulated by Crane Prairie Reservoir, Crescent Lake, and Wickiup Reservoir.
station.
AVERAGE DISCHARGE.--65 fears (water years 1907-13, 1925-821
Many diversions for irrigation above
1,408 ft3/s, 1,020,000 acre-ft/yr.
,
EXTREMES FOR PERIOD OF RECORO.--Maximum discharge, 5,000 ft3/s, estimated, Nov. 27, 1909 Igage height not determined); minimum, 363
ft3/s Jan. 20, 1962.
STATISTICAL SUMMARIES (BEFORE THE CONSTRUCTION OF WICKIUP RESERVOIR)
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
ICFS)
(CFS)
MEAN
(CFS)
STANDARD
DEVIATION
(CFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOO OF RECORD 1926-41
1925-41
COEFFI- PERCENT
CIENT OF
OF
VAR)ANNUAL
ATION
RUNOFF
PERIOD
(CONSECUlIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
829
850
844
797
800
864
837
940
1396
1454
1519
1423
1451
1450
1512
1753
1615
1647
1102
1075
1059
1035
1067
AUGUST
SEPTEMBER
930
850
1671
1523
ANNUAL
921
1458
1190
.16
7.7
190
183
.18
.17
.16
.18
7.5
.15
.15
7.8
8.4
9.4
9.6
9.8
9.4
8.2
166
189
167
183
235
178
181
1111
1197
1335
1373
1398
1344
1172
1037
1029
173
244
202
.18
.13
.13
.18
.17
151
.13
1
7.4
3
7
7.3
14
7.5
30
60
90
120
5
20%
10
10%
25
4%
50
2%
10%
905
922
929
940
952
801
752
768
794
813
822
830
840
846
984
996
1040
50
2%
100
1%
713
732
766
787
796
801
811
816
832
871
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
5
20%
815
833
849
859
870
882
889
923
20
5%
10
2
50%
971
183
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1925-41
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
IN
PERIOD
ICONSECUTIVE
100
1%
DAYS)
1
WEIGHTED SKEW =
3
7
15
30
60
90
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
10
25
50%
20%
10%
4%
1560
1550
1540
1530
1500
1460
1420
1750
1730
1720
1690
1660
1610
1570
1840
1820
1800
1770
1740
1680
1640
1930
1910
1880
1840
1800
1740
1700
50
2%
100
1%
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1925-41
DISCHARGE,
5%
1620
10%
1540
15%
1470
20%
1420
IN CFS, WHICH WAS EOUALEO OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
1370
30%
1320
40%
1240
50%
1170
60%
1110
70%
1040
75%
1000
80%
959
85
929
90%
889
95%
47
119
DESCE-IUTES RIVER BASIN
14064500
DESCHUTES RIVER AT BENHAM FALLS. NEAR BEND, OR--Continued
STATISTICAL SUMMARIES (AFTER THE COMPLETION OF WICKIUP RESERVOIR)
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
(CFS)
MAXIMUM
MEAN
STANDARD
DEVIAlION
(CFS
)CFS)
(CFS)
1944-82
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1945-82
PERCENT
CDEFFI-
dENT OF
OF
VARIATION
ANNUAL
RUNOFF
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
PERIOD
(CONSECUTIVE
2
50%
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
646
2089
1217
487
520
543
514
542
1540
1360
1540
1620
2068
2103
2521
3017
2938
784
824
938
989
1343
1943
2210
2392
2795
2486
1977
902
AUGUST
SEPTEMBER
1199
1264
1489
1403
1256
ANNUAL
1021
JULY
317
243
241
287
.31
2221
1878
324
386
345
325
363
353
326
283
.29
.33
.35
.39
.26
.17
.16
.15
.15
.15
1470
239
.16
861
6.9
4.5
4.7
4.9
5.3
5.6
7.6
.26
3
7
14
30
60
90
11.0
12.6
13.6
12.6
10.7
120
183
2
5
50%
20%
10
10%
25
4%
50
2%
884
(CONSECUTIVE
DAYS)
100
1
1
3
7
15
30
60
90
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD
5%
2630
10%
2470
15%
2330
201
2200
448
455
469
397
410
416
422
435
578
601
624
715
529
546
562
645
495
461
506
467
475
544
498
514
524
533
441
519
594
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
PERIOD
WEIGHTED SKEW =
DISCHARGE,
427
551
457
472
480
488
503
10%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1944-82
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
771
50
2%
10
100
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
80%
597
615
629
641
665
699
735
1
20
5%
5
20%
2
5
10
25
50%
20%
10%
4%
50
2%
2640
2630
2600
2560
2500
2420
2350
2890
2870
2820
2800
2750
2670
2600
3000
2960
2900
2880
2850
2780
2700
3090
3030
2960
2950
2930
2870
2780
3130
3070
2990
2990
2970
2910
2830
OF
100
1%
RECORD 1944-82
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
2080
30%
1950
40%
1650
50%
1400
60%
1160
70%
924
75%
831
80%
726
85%
659
90%
608
95%
563
120
DESCHUTES RIVER BASIN
DESCHUTES RIVER BELOW LAVA ISLAND, NEAR BEND, OR
14066000
LOCATION.--Lat 4400'00", long 121'22'30, in SW sec.23, T.18 S., R.11 E., Deschutes County, Hydrologic Unit 17070301,
on right bank 0.8 ml downstream from Lava Island, 1.5 ml downstream from intake of Arnold Canal, 5 mi southwest of
Bend, and at mile 173.0.
DRAINAGE AREA.--1,829 ml2.
PERIOD OF RECORD.--March 1925 to September 1965.
Prior to May 4, 1927, at site 0.2 ml upstream
GAGE.--Water-stage recorder-. Altitude of gage is 3,825 ft (by barometer).
at different datum.
May 4, 1927, to Nov. 11, 1947 and Nov. 12, 1947, to Oct. 24, 1959, at present site at datums 2.00
and 1.00 ft higher, respectively.
Small
REMARKS.--Flow regulated by Crescent Lake and Crane Prairie Reservoir and, since 1942, by Wickiup Reservoir.
diversions for irrigation above station. Arnold Canal diverts above station for irrigation near Bend.
AVERAGE DISCHARGE.--40 years, 1,237 ft3/s, 895,600 acre-ft/y,
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3.360 ft3/s Dec. 26, gage height, 5.14 ft; minimum, 390 ft3/s Jan. 20,
1962.
STATISTICAL SUMMARIES (BEFORE THE CONSTRUCTION OF WICKIIJP RESERVOIRI
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1927-41
1926-41
STAN-
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
MINIMUM
MAXIMUM
ICFSI
(CFSI
734
773
753
MEAN
ICFS>
ICFS)
959
956
956
926
1243
1256
1368
1301
AUGUST
SEPTEMBER
709
727
806
739
808
909
899
817
738
1238
1334
1434
1594
1415
1452
1516
1379
1056
1137
1178
1229
1186
1022
ANNUAL
830
1305
1050
JULY
DARD
DEVIATION
941
999
PERIOD
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
147
157
165
155
146
150
167
210
146
.15
.16
154
171
.13
.18
.17
139
.13
7.6
7.6
7.6
7.4
7.5
8.0
8.4
.17
.17
.16
.15
.16
1
3
7
14
30
60
90
120
183
9.1
.18
.12
212
(CONSECUTIVE
DAYS)
9.4
9.8
9.5
8.1
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1240
2
5
50%
20%
1410
1590
10
10%
1690
25
4%
50
2%
5
20%
10%
784
797
716
815
828
842
748
760
774
785
796
806
828
689
704
723
735
749
760
767
773
787
856
873
888
923
729
20
5%
10
100
50
2%
1%
671
688
706
718
733
743
748
751
756
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1927-41
IN
PERIOD
(CONSECUTIVE
DAYS)
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
20%
10%
1410
1400
1380
1370
1340
1300
1260
1570
1550
1530
1510
1490
1430
1390
1640
1610
1600
1570
1550
1490
1450
5
25
4%
10
50
2%
100
1%
1800
1
WEIGHTED SKEW =
2
50%
tOO
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1927-41
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
-.198
3
7
15
30
60
90
1710
1670
1650
1620
1600
1540
1500
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1927-41
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
1440
0%
1360
15%
1300
20%
1260
25%
1220
30%
1170
40%
1100
50%
1020
60%
953
70%
905
75%
881
80%
856
85%
829
90%
799
95%
767
121
DESCHUTES RIVER BASIN
14066000
DESCHUTES RIVER BELOW LAVA ISLAND, NEAR BEND, OR--Continued
STATISTICAL SUMMARIES (AFTER THE COMPLETION OF WICKIUP RESERVOIR)
MONTHLY AND ANNUAL MEAN DISCHARGES
1943-65
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD
1944-65
STAN-
MONTH
MINIMUM
(CFS)
MAXIMUM
MEAN
lION
(CFS)
(CFS)
(CFS)
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
PERIOD
(CONSECU-
TIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
762
554
539
516
544
543
809
975
1063
1838
1495
1272
1293
1575
1820
1966
1335
1248
1114
2313
2721
2657
2540
2217
783
806
811
916
982
1302
1749
1960
2172
2062
1752
904
1789
1371
335
377
430
425
373
284
.24
.30
.28
.29
.32
.35
.26
.22
.22
.20
.18
.16
232
17
292
232
223
236
297
1199
341
7.3
3
7
604
14
636
662
695
729
764
885
621
30
60
90
120
6.0
7.9
10.6
11.9
13.2
12.5
10.6
183
PERIOD
ICON2
5
20%
20
50
100
10%
5%
2%
1%
504
518
530
538
555
579
600
621
465
480
490
496
5
436
452
460
465
479
496
511
531
545
504
513
597
559
650
721
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1943-65
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
10
20%
100
DISCHARGE,
1.25
2
50%
591
1
4.7
4.9
4.9
5.6
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
80%
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
DISCHARGE.
DARD
DEVIA-
10
25
50
100
10%
4%
2%
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEOANCE PROBABILITY, IN PERCENT
SECU-
lIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
2430
2420
2380
2340
2280
2210
2150
2760
2740
2660
2620
2590
2520
2450
2910
2880
2760
2740
2710
2650
2580
3040
3000
2850
2830
2820
2760
2690
90%
95%
1
WEIGHTED SKEW =
3
7
15
30
60
90
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1943-65
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
2470
10%
2320
15%
2180
20%
2040
25%
890
30%
1760
40%
1510
50%
1290
60%
1090
70%
902
75%
819
80%
750
85%
679
609
553
DES' -IITDS RIVER BASIN
22
14070500
DESCHUTES RIVER BELOW BEND, OR
LOCATION.--Lat 44°O4'59", long 12118'24", in SESE sec.20, T.17 S., P.12 E., Deschutes County, Hydrologic Unit 17070301, on right
bank 0.4 mi downstream from North Canal, 0.5 mi north of Bend city limits, and at mile 164.4.
DRAINAGE AREA.--1,899
ni2.
PERIOD OF RECORD.--October 1914 to September 1982.
Prior to Oct.
GAGE.--Water-stage recorder. Datum of gaGe is G,503.00 ft National Doodetic Vertical Datum of 1929.
water-stage recorder at site 200 ft downstream at datum 1.00 ft higher.
1,
1931,
REMARKS.--FIow regulated by powerplant at Bend, Crescent Lake, Crane Prairie Reservoir, and Wickiup Reservoir. Six large canals and
several small ditches divert water above station for irrigation.
AVERAGE DISCHARGE.--68 years, 499 ft3/s, 361,500 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.---Maximum discharge, 2,820 fttm/s Dec. 27, 1964, gage height, 4.90 ft; maximum gage height, 5.38 ft
Dec. 15, 1932 (backwater from ice); minimum discharge, 1.0 fttm/s Aug. 25, 1930.
EXTREMES OUTSIDE PERIOD OF RECORD.--Muximumn discharge near this site since 1905, 4,820 ft3/s Nov. 27, 1909.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
ICFS)
MEAN
(CFS)
STANDARD
DEVIATION
(CFSI
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1945-82
1944-82
PERIOD
ICONSECUTIVE
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
254
608
676
741
799
215
780
308
371
205
.67
22
24
24
855
1194
1186
1369
1495
1767
918
586
799
389
109
115
168
68
21
570
523
109
143
131
19
152
1.06
1.28
.92
1.20
1.06
205
718
392
154
.39
31
289
338
435
454
270
22
218
263
308
131
74
5.4
12.8
14.3
15.7
16.9
16.5
.85
.38
.32
231
.35
.39
.48
1
3
7
14
30
60
90
20
83
6.5
2.3
2.8
50%
20%
10
10%
25
4%
50
2%
1280
1670
1920
2240
PERIOD
(CONSECU-
100
TIVE
1%
1%
21
14
11
9.1
7.4
25
29
33
39
47
54
17
14
2
9.9
20
22
24
16
28
30
22
14
15
16
19
19
59
32
24
76
39
28
18
19
23
20
22
12
13
14
16
16
16
17
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
10
25
50
100
20%
10%
4%
2%
1%
1580
1530
1450
1330
1200
1100
1020
1850
1780
1680
1550
1430
1310
1210
2190
2100
2440
2340
2210
2050
5
2480
1180
1140
1080
1
WEIGHTED SKEW =
100
2%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1944-82
DAYS)
1000
50
5%
100
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
5
20
10%
5
20%
2.3
3.0
DISCHARGE,
2
10
2
50%
1.6
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1944-82
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
3
.158
7
988
876
796
750
15
30
60
90
DURATION TABLE OF DAILY
1980
1830
1720
1590
1470
1950
1610
1670
lEAN FLOW FOR PERIOD OF RECORD 1944-82
DISCHARGE. IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
1190
10%
975
15%
819
20%
707
25%
623
30%
570
40%
453
50%
274
60%
123
70%
75%
80%
85%
90%
95%
63
48
38
32
29
25
123
DESCHUTES RIVER BASIN
14075000
SQUAW CREEK NEAR SISTERS, OR
LOCATION.--Lat 4414'02", long 12l3357", in SESWJ sec.29, 1.15 S., R.10 E. , Deschutes County, Hydrologic Unit 17070301, on right
bank 800 ft upstream from intake of McAllister ditch, 4 ml south of Sisters, and at mile 26.8.
DRAINAGE AREA.--45.2 ml2, revised.
PERIOD OF RECORD.--JuIy 1906 to October 1918, June to August 1919, October 1919 to September 1920, May 1921 to September 1924 (no
Ilonthly discharge only for some periods, pubi (shed in WSP 1318.
winter records), April 1925 to September 1982.
GAGE.--Water-stage recorder. Altitude of gage is 3,490 ft, by barometer.
1,000 ft downstream at different datum, be low intake of McAllister ditch
1913, to Sept. 2, 1915, nonrecording gage and Mar. 24, 1916, to Oct. 5,
Oct. 6, 1n28, to Nov. 7, 1967, water-stage recorder at
different datum.
July 1, 1906, to May 29, 1913, nonrecording gage at site
(records include flow in McAllister di tch( . May 30,
1928, water-stage recorder at site 300 ft downstream at
site 200 ft downstream at datum 2.64 ft lower.
REMARKS.--No regulation. A canal near mouth of Pole Creek, a tributary above station, diverts entire flow of that creek for
irrigation of lands near Sisters.
AVERAGE DISCHARGE.--70 years (water years 1907-18, 1920, 1926-82), 105 ft3/s, 76,070 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge since 1909, 2.000 ft3/s Dec. 25. 1980,
on basis of slope-area measurement of peak flow; a maximum gage height of 9.2 ft from
1979, and probably occurred on Jan. 10, 1979; previous maximum gage height, about 8.75
and datum then In use (discharge not determined); minimum discharge, (4 ft3/s Mar. 2,
from rating curve extended above 690 ft3/s
water-borne ice was observed on Jan. 11,
ft. over top of gage Nov. 22, 1909, site
1966.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MINIMUM
MONTH
(CFS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MAXIMUM
(CFS)
MEAN
STANDARD
DEVIAlION
ICFS)
ICFS>
40
37
35
24
24
34
37
58
113
70
68
132
51
135
118
80
61
164
104
187
220
63
75
85
31
71
32
68
60
75
31
21
22
43
226
71
.31
191
64
33
18
.33
.28
.22
22
.21
390
347
209
44
ICONSECUTIVE
DAYSI
5.0
6.0
6.7
5.7
5.4
4.7
6.0
11.4
18.0
15.2
9.4
.27
.41
17
113
158
133
279
PERIOD
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
RUNOFF
ATION
.52
.45
.46
.35
.29
.30
180
200
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1917-82
1916-82
366
5
50%
20%
557
WEIGHTED SKEW =
887
10
10%
1150
25
4%
1540
50
2%
1870
100
26
27
28
29
23
22
23
26
26
24
31
33
28
26
27
30
32
36
5
10
20
20%
10%
5%
31
28
29
14
38
39
40
42
30
46
38
60
90
51
41
55
120
183
60
66
44
47
53
1
3
7
32
33
35
30
32
34
37
39
42
36
38
47
43
1%
24
24
30
32
34
39
6.4
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1916-82
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
50
2%
2
50%
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1916-82
1.25
80%
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
PERIOD
(CONSECUTIVE
DAYS)
100
1%
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
10
2
5
50%
20%
10%
742
585
463
395
349
304
264
25
4%
50
100
2%
1%
946
713
1120
814
583
1300
2250
.348
1
411
598
3
356
7
308
270
244
490
404
350
15
30
60
90
214
190
311
272
238
533
447
392
340
294
481
421
366
313
920
630
512
447
387
331
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1916-82
DISCHARGE,
5%
264
10%
205
15%
172
20%
148
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
129
30%
114
40%
50%
60%
70%
75%
80%
85%
90%
95%
92
77
67
60
56
53
49
45
39
124
DESCHUTES RIVER BASIN
14076500
DESCHUTES RIVER NEAR CULVER, OR
LOCATION.--Lat 44°29'56", long 121l9'12", In NWSE+ sec.29, 1.12 S., R.12 E., Jefferson County, Hydrologic Unit 17070301, on right
bank 2.5 ci downstream from Squaw Creek, 6.0 mi southwest of Culver, and at mile 120.6.
DRAINAGE AREA.--2,705 mi2.
PERIOD OF RECORD.--JuIy 1952 to September 1982.
GAGF.--Water-stage recorder. Datum of gage Is 1,980 ft National Geodetic Vertical Datum of 1929 (river-profile survey).
1952, to Sept. 30, 1961. at site 4.1 ml downstream at different datum.
July 14.
Many diversions for irrigation above station.
REMARKS.--FIow regulated by Crescent Lake and Crane Prairie and Wlcklup Reservoirs.
AVERAGE DISCHARGE.--3O years, 905 ft/s, 655,700 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 6,680 ft3/s Dec. 24. 1964, gage height, 10.00 ft, from rating curve extended above
2,200 ft3/s on basis of slope-area measurement of peak flow; minImum, 418 ft3/s July 7, 8, 1964.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
bONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
(CFS)
(CFS)
470
MEAN
(CFS)
455
430
1080
1683
1958
2012
2034
2360
1430
1228
1020
766
441
741
455
782
586
638
549
529
554
677
1195
905
837
953
1010
1010
839
510
457
STANDARO
DEVIAlION
(CFS)
666
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
160
207
1288
1360
1416
1325
817
281
152
160
89
94
.24
.18
.22
.22
.22
.30
.30
.26
.25
.16
.13
.17
163
.18
1161
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1954-82
1953-82
305
318
401
243
71
PERIOD
(CONSECUTIVE
DAYS)
6.1
10.7
11.8
12.5
13.0
12.2
1
2
5
50%
20%
10
10%
25
4%
50
2%
1740
2170
2840
3320
3980
50
2%
482
485
489
493
502
457
459
462
465
445
447
449
452
436
426
427
428
431
431
469
453
471
521
120
183
534
475
480
492
456
456
458
467
443
443
450
554
443
100
1%
432
432
433
433
4.9
5.1
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1953-82
IN
PERIOD
(CONSECUTIVE
100
1%
DAYS)
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS. AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
25
4%
50
2%
2760
2590
2330
2120
3440
3240
3030
2640
2390
1960
1850
2210
2080
3840
3620
3380
2870
2580
2410
2260
2
5
50%
20%
10%
2010
1890
1790
1690
1550
1440
1380
2550
2400
2260
2080
2930
10
100
1%
4510
1
WEIGHTED SKEW =
10%
510
30
7.5
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
5
20%
60
90
7
14
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1953-82
80%
20
5%
10
2
50%
437
439
442
442
3
5.4
5.9
5.0
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL. IN YEARS. AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.590
3
7
15
30
60
90
1900
1750
1660
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1953-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
1830
10%
1560
5%
1400
20%
1280
25%
1190
30%
1120
40%
977
50%
742
60%
595
70%
538
75%
521
80%
508
85%
495
90%
481
95%
467
I 25
DESCHUTES RIVER BASIN
14078000
BEAVER CREEK NEAR PAULINA, OR
right bank 0.7
LOCATION.--Lat 44'09'50", long 119'55'20", in NE sec.26, T.16 S., R.23 E., Crook County, Hydrologic Unit 17070303, on
ml downstream from Pauline Creek, 1.7 ci downstream from Wolf Creek, 2.7 ml northeast of Paulina, and at mile 10.0.
DRAINAGE AREA.--450 m12, approximately.
PERIOD OF RECORD.--October 1942 to September 1975.
Oct. 1, 1942, to July 7, 1965 at datum 1.00 higher.
Altitude of gage is 3,690 ft (by barometer).
GAGE.--Water-stage recorder.
REMARKS.--No regulation.
Prior to October 1945 monthly discharge only, published in WSP 1318.
Diversions for irrigation above station.
Two small ditches divert above station for irrigation below.
AVERAGE DISCHARGE.--33 years, 89.1 ft3/s, 64,550 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 12,800 ft3/s Dec. 22, 1964, gage height, 14.20 ft, from floodmark, present datum,
from rating curve extended above 1,600 ft3/s, on basis of slope-area measurement of peak flow; no flow Oct. 13-29, 1945.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1944-75
1943-75
STANDARD
DEVIAMONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MINIMUM
MAXIMUM
MEAN
ICFS)
(CFS)
(CFS)
.4
13
5.6
129
8.0
432
590
858
889
796
298
11
16
35
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
1.5
.4
.5
.7
.4
.4
15
TION
(CFS)
279
251
93
17
27
7.1
6.1
215
1.4
1.8
TIVE
2
5
50%
20%
30
60
90
.4
.5
.5
.5
.7
1.0
1.4
120
183
2.0
4.8
1
3
7.7
7
14
11.1
18.4
25.9
23.3
8.6
1.6
5
20%
730
1370
2750
10
25
50
100
10%
4%
2%
1
4060
6270
100
2%
1%
.3
.3
.3
.3
.4
.6
.8
1.1
.2
.2
.2
2.7
2.0
.2
.2
.2
.2
.2
.4
.5
.7
1.5
.2
.3
.4
.6
.9
.1
.1
.1
.2
.2
.3
.4
.5
1.1
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1943-75
PERIOD
(CONSECU-
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS. AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
TIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
1140
901
2040
1640
2740
2210
682
505
389
290
247
1210
1590
1120
3720
3020
2090
4510
3680
2480
1440
1020
729
588
1680
1160
826
656
8390
1
WEIGHTED SKEW =
50
5%
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
80%
20
10%
.2
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1943-75
1.25
10
.5
.1
.54
48
89
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
DAYS)
.5
2.1
.53
1.22
1.31
1.16
.83
.70
.65
.89
1.54
1.17
.89
.78
5.7
4.9
1.6
2.3
ANNUAL
RUNOFF
ATION
27
109
139
165
194
162
83
124
29
VARI-
2.8
5.3
22
83
120
198
PERIOD
(CONSECU-
COEFFI- PERCENT
CIENT OF
OF
.333
3
7
15
30
60
90
867
645
471
394
812
588
485
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1943-75
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
421
10%
264
15%
181
20%
125
25%
30%
40%
50%
87
60
25
13
60%
7.4
70%
4.4
75%
2.9
85%
90%
.7
95%
.5
126
DESCHUTES RIVER BASIN
NORTH FORK CROOKED RIVER ABOVE DEEP CREEK, OR
14078500
LOCATION.--Lat 44°19'55", long 12O04'55", in NE+ sec.28, T.14 S., R.22 E., Crook County, Hydrologic Unit 17070304, on left bank 0.8
ml upstream fran Deep Creek, 15 mi northwest of Paul na, and 38 mi east of Prinevi I le.
DRAINAGE AREA.--159 mi2.
Prior to October 1945 monthly discharge only,
PERIOD OF RECORD.--Novenber 194) to December 1942, October 1943 to September 1954.
published In WSP 1318.
GAGE.--Water-stage recorder-. Datum of gage is 4,356.00 ft National Geodetic Vertical Datum of 1929 (levels by Bureau of
ReclamatIon).
Prior to Oct. 1, 1946, at datum 0.33 ft higher.
REMARKS.--No regulation.
Several diversions for irrigation of about 3,600 acres above station.
AVERAGE DISCHARGE.--11 years (water years 1943-54), 97.0 ft3/s, 70,230 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximun discharge, 2,060 ft3/s Apr. 7, 1943, gage height, 4.17 ft. from rating curve extended above
950 ft3/s; maximum gage height, 8.01 ft, last used datum, Jan. 1, 1943 (ice jam); minimum discharge, 0.5 ft3/s Aug. 14, 15, 1942.
Aug. 3 to Sept. 24, 1951.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
(CFS)
(CFS)
1.3
4.0
10
37
4.7
152
9.4
187
160
25
210
488
911
457
15
262
19
58
1.4
(CFSI
4.9
46
56
95
189
465
213
74
52
122
239
.51
127
.60
1.06
1.09
.74
.63
79
6.3
2.0
1.5
1.2
40
97
(CON-
2
5
DAYS)
50%
20%
.4
1
1.4
3
7
14
30
60
90
8.1
16.2
39.8
18.2
120
183
6.3
2
5O
5
20%
10
10%
25
4%
50
2%
1410
1820
PERIOD
ICONSECUTIVE
100
1%
1.0
.7
.6
.5
1.0
1.1
1.2
1.3
1.5
1.7
.7
.6
.5
.7
.6
.5
.7
.6
.5
.8
.9
.6
.5
.6
2.3
1.1
1.5
7.2
3.8
.7
1%
.8
.9
1.2
2.7
100
1.0
2.1
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
10
2
5
50%
20%
10%
941
826
704
567
460
376
300
1360
1210
1030
1570
1420
1220
1020
819
25
4%
50
2%
85%
90%
100
1%
2090
1
WEIGHTED SKEW =
50
2%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1944-54
DAYSI
1100
10%
100
.42
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
20
5%
10
.5
.2
.2
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1944-54
80
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
SECUTIVE
3.9
4.8
1.08
.74
.65
71
1.9
173
.64
.65
1.13
60
5.8
PERIOD
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
3.1
11
5.5
4.7
.6
)CFS)
17
23
.5
37
MEAN
STANDARD
DEVIATION
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1945-54
1944-54
3
.156
7
15
30
60
90
848
679
539
422
634
490
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1944-54
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
504
10%
317
15%
212
20%
148
25%
lOt
30%
40%
50%
65
32
IS
60%
7.9
70%
4.5
75%
3.4
80%
2.2
1.8
1.4
95%
1.1
127
DESCHIJTES RIVER BASIN
14079500
CROOKED RIVER NEAR POST, OR
LOCATION.--Lat 44'07'OO", long 12001500, in NE sec.7, 1.17 5., R.21 E., Crook County, Hydrologic Unit 17070304, on
ml downstream from North Fork, 12 ml southeast of Post, and at mile 113.7.
left bank 0.3
DRAINAGE AREA.--2, 160 mi2, approximately, of which 500 mi2 is probably noncontributing.
PERIOD OF RECORD.--November 1908 to May 1911, December 1939 to September 1960, July 1968 to July 1973.
1911, published in WSP 312, have been found unrel able and should not be used.
Records for June to August
Nov. 9, 1908, to Aug. 31, 1911,
GAGE.--Water-stage recorder. Datum of gage is 3,476.25 ft National Geodetic Vertical Datum of 1929.
Dec. 30, 1939, to Sept. 30 1960, water-stage recorder at site
nonrecording gage at site 0.2 mi downstream at different datum.
0.7 ml downstream at different datum.
REMARKS.--No regulation.
Many diversions for irrigation above station.
AVERAGE DISCHARGE.--24 years (water years 1941-60, 1969-72). 337 ff3/s, 244,200 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 11,500 ft3/s Jan. 18, 1971, gage height, 9.61 ft. from rating curve extended above
4.800 ft3/s, on basis of slope-area measurement of peak flow; minimum, 2.7 ft3/s Aug. 7, 1970.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Dec. 23, 1964, reached a stage of 15.00 ft at nonequivalent sil-e 23 ml downstream,
discharge, 19.700 ft3/s.
STATISTICAL SUMMARIES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1942-72
1941-72
MONTHLY AND ANNUAL MEAN DISCHARGES
STAN-
COEFFI-
PERCENT
dENT OF
OF
ANNUAL
VARIATION
RUNOFF
DARD
0EV I A-
MONTH
MINIMUM
MAXIMUM
MEAN
lION
(CFS)
ICFS)
(CFS)
I CFS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
29
50
56
60
82
188
430
77
35
4.7
ANNUAL
43
104
208
337
522
81
259
753
1488
2000
2068
2692
833
13
.29
1.1
57
185
.55
353
379
1.05
2.6
5.2
8.5
13.2
.89
451
1211
580
1300
635
108
500
291
144
1 33
14
I0
37
41
22
6.7
19
7.2
129
553
331
5.6
31
123
.73
.54
.48
21.0
30.5
.58
.92
12.6
3.6
.71
.8
.49
.38
.3
.5
.37
PER 100
(CONSECUlIVE
DAYS)
8.7
80%
2410
4000
WEIGHTED SKEW =
5
20%
6560
10
10%
8450
25
4%
11000
50
2%
9.8
14
10
30
60
90
11
1 20
23
44
14
17
183
5
20
5%
10
10%
20%
5.9
6.2
6.8
7.3
4.7
5.0
3.8
5.5
6.0
4.6
9.1
10
6.8
4.1
5.1
5.8
7.8
8.7
13
17
11
15
10
13
33
29
26
50
2%
100
1%
3.0
3.3
3.7
4.2
4.9
7.0
24
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1941-72
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
2
50%
9.1
3
7
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1941-72
1.25
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
PERIOD
(CONSECUlIVE
DAYS)
100
1%
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
10%
5270
4340
3400
2700
2090
6790
5420
4120
3230
2480
1570
1290
1810
1480
13100
3170
2730
2260
3
7
-.086
1830
1450
1130
943
15
30
60
90
25
4%
50
2%
8810
6760
4950
3830
2910
2070
1660
10400
7750
5530
10
5
20%
100
1%
4230
3200
2220
1770
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1941-72
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
1480
10%
960
15%
671
20%
498
25%
367
30%
270
40%
150
50%
60%
70%
75%
30%
85%
90%
95
89
63
43
32
24
19
15
11
I 28
DESCHUTES RIVER BASIN
14080500
CROOKED RIVER NEAR PRINEVILLE. OR
LOCATION.--Lat 44O6'5O", long 12047'40", in SWNE+ sec.1O, T.17 S., R.16 E., Crook County, Hydrologic Unit 17070304, on right bank
0.4 mi downstream from Prinev ii le Dam, 13.6 ml south of Prinevi I Ie, and at mile 72.1.
DRAINAGE AREA.--2,700 mi2, approximately, of which 500 mi2 is probably noncontributing.
Published as 'near Prineville" 1908-12, as "at
PERIOD OF RECORD.--November 1908 to September 1914, March 1941 to September 1982.
Hoffman's ranch, near Prinevi I le" 1913-14, and as "above Hoffman Dam, near Prinevi lie" March 1941 to September 1960. The estimate
of monthly mean discharge for October 1908, published In WSP 370, has been found to be unreliable and should not be used.
GAGE.--Water-stage recorder.
Datum of gage is 3,070.85 ft National Geodetic Vertical Datum of 1929 (levels by Bureau of
Reclamation).
Prior to September 1914, nonrecording gage at several sites from 9 mi to 23 ml downstream at various datums.
Mar. 26, ¶941, to Apr. 23, 1961, water-stage recorder at site 5.5 ml downstream at different datum.
REMARKS.--FIow completely regulated since December 1960 by Prinevll Ia ReservoTr. Diversions for irrigation above station. Discharge
not adjusted for storage or release from Prineville Reservoir as evaporation from reservoir at times exceeds natural flow.
AVERAGE DISCHARGE.--24 years Iwater years 1910-14, 1942-60), 378 ft3/s, 273,700 acre-ft/yr; 22 years Iwater years 1961-82), 325
ft3/s, 235,500 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 8,410 ft'/s Mar. 26, 1952, gage height, 8.2 ft, from floodmark, site and datum
then in use; no flow Aug. 13-21, 1959, Jan. 3-5, 1961.
STATISTICAL SUMMARIES (BEFORE THE CONSTRUCTION OF PRINEVILLE RESERVOIR)
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1943-59
1942-59
STAN-
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
MINIMUM
MAXIMUM
ICFS)
ICFS)
(CFS)
(CFSI
COEFFI-
87
207
47
110
65
98
768
830
2352
260
304
197
1880
455
72
3058
901
1509
1460
638
33
771
102
38
37
202
40
16
10
.65
647
387
160
.41
7.6
1.4
2.4
139
OF
ANNUAL
RUNOFF
(CONSECUTIVE
DAYS)
.34
.40
.85
.79
.80
.55
.48
.58
.95
.68
16
44
221
240
516
497
724
370
192
27
9.6
11
PERIOD
VARIATION
69
647
PERCENT
dENT OF
26
63
SEPTEMBER
ANNUAL
MEAN
DARD
DEVIATION
1.0
2.3
5.6
3
6.5
14
13.8
19.2
30
60
90
120
183
4.2
4.5
4.9
5.5
6.9
32.2
13.6
4.3
80%
2260
50%
20%
3580
5530
10%
6880
25
4%
50
2%
1%
.8
1.1
1.4
1.7
2.1
2.8
5.6
7.0
16
13
11
36
31
28
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1942-59
PERIOD
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
SECUTIVE
2
5
DAYS)
50%
20%
10%
25
4%
15
3360
2910
2460
2000
30
60
90
1600
1310
1100
5140
4430
3680
3100
2460
6190
5310
4380
3790
2990
2240
1850
7350
6280
5150
4590
3610
2570
2110
10
50
2%
100
1%
8620
1
WEIGHTED SKEW =
5.4
9.1
100
.2
.3
(CON10
3.7
50
2%
.9
.86
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
5
1.2
1.5
1.8
2.2
2.7
3.8
2.5
3.0
15
23
49
10%
1.9
2.1
¶0
DISCHARGE,
2
5
20%
1
20
5%
10
2
50%
7
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1942-59
1.25
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEOANCE PROBABILITY. IN PERCENT
-.195
3
7
1910
1590
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1942-59
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
1840
10%
1100
15%
785
20%
25%
431
30%
322
40%
173
50%
104
60%
70%
75%
80%
85%
73
48
36
25
18
90%
95%
5.2
129
DESCHUTES RIVER BASIN
14080500
CROOKED RIVER NEAR PRINEVILLE, OR--Continued
STATISTICAL SUMMARIES (AFTER THE COP.PLETION OF PRINEVILLE RESERVOIR>
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1962-82
1961-82
STANDARD
DEVIAMINIMUM
(CFS)
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
26
14
APRIL
47
616
325
SEPTEMBER
ANNUAL
JULY
144
111
88
AUGUST
JUNE
270
369
1037
1682
1625
2035
1505
1297
327
303
(CFS)
306
247
.2
2.7
67
72
87
87
MAY
(CFS>
MEAN
259
385
484
466
670
506
233
233
228
196
26
13
19
MARCH
MAXIMUM
TION
(CFS)
78
94
334
417
473
531
443
334
55
52
47
42
COEFFI-
dENT OF
VARIATION
OF
ANNUAL
RUNOFF
2
DAYS)
50%
6.6
9.8
12.4
11.9
.47
2
5
50%
20%
54
70
109
50
100
5%
2%
1%
7.0
7.3
7.9
9.8
15
17
88
107
144
20
10%
9.2
13
14
60
10
11
8.9
12
15
27
41
54
11
21
32
44
79
92
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1961-82
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE INTERVAL, IN
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
1.25
5
20%
22
35
40
120
183
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
80%
31
30
60
90
6.0
6.0
5.8
5.0
.22
.20
.22
23
26
28
1
3
7
14
17.1
12.9
DISCHARGE. IN CFS, FOR INDICATED RECURRENCE
INTERVAL. IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
TIVE
3.7
2.8
.54
.85
1.29
1.08
.98
1.14
.66
.66
.23
154
PERIOD
(CONSECU-
PERCENT
10
25
50
100
10%
4%
2%
1%
PERIOD
(CONSECU-
TIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
1760
1710
1550
1300
1010
741
2980
2900
2690
2290
3520
3440
3250
2820
2220
3940
3870
3750
3300
2560
1600
1940
1320
1590
1
3
7
WEIGHTED SKEW =
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
15
30
60
90
639
1780
1290
1070
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1961-82
DISCHARGE,
5%
1370
10%
802
15%
473
20%
344
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
298
30%
257
40%
231
50%
205
60%
173
70%
130
75%
80%
85%
90%
95%
99
71
54
37
29
130
DESCHUTES RIVER BASIN
CROOKED RIVER BELOW OPAL SPRINGS, NEAR CULVER, OR
14087400
LOCATION.--Lat 14°29'33", long 121l7 50", in NWNE sec.33, T.12 S., R.12 E., Jefferson County, Hydrologic Unit 17070305, on right
bank 0.2 ml downstream from Opal Springs, 4.8 mi southwest of Culver, and at mile 6.7.
DRAINAGE AREA.--4,300 mi2, approximately, of which 500 mi2 is probably noncontributing.
PERIOD OF RECORD.--October 1961 to September 1982.
GAGE.--Water-stage recorder.
bench marki
Datum of gage is 1,953.60 ft National Geodetic Vertical Datum of 1929 (Portland General Electric Co.
I.lany diversions
REMARKS.--FIow regulated since December 1960 by Prineville Reservoir and Ochoco Reservoir, capacity, 47,500 acre-ft.
for irrigation above station. Practically all of the summer flow comes from Opal Springs and other springs within 15 ml above
station.
Simultaneous records (1961-631 at former gaging station 5.6 mi downstream indicated over 15 percent increase in summer
flow from springs below this station.
AVERAGE DISCHARGE.--21 years, 1,561 ft3/s, 1,131,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--l.laximum discharge, 6,650 fl-3/s Dec. 24, 1964, gage height, 9.36 ft; minimum, 836 ft3/s Sept. 8,
caused by refilling of snail forebay upstream from gage.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
MINIMUM
MAXIMUM
(CFSI
(CFS)
MEAN
ICFS)
STANDARD
DEVIAlION
(CFS>
COEFFI-
OF
VARIATION
JUNE
JULY
AUGUST
SEPTEMBER
1650
1724
2686
3551
3490
4208
3215
2566
1478
1389
1593
1541
1267
1311
1379
106
102
.33
.40
.27
.25
.07
.07
.08
.07
ANNUAL
1278
1973
1561
213
.14
1441
PERCENT
dENT OF
1239
1232
1179
1182
1250
1232
1192
1173
1196
1122
1134
1187
126
120
1368
1560
1712
1868
1860
2028
1663
1305
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1963-82
1962-82
ANNUAL
RUNOFF
7.7
7.3
8.3
9.1
10.0
9.9
10.8
8.9
7.0
6.8
7.0
7.3
.09
.09
.28
.32
436
555
620
750
552
422
90
86
PERIOD
(CONS ECU-
lIVE
2
5
10
20
50
100
DAYS)
50%
20%
10%
5%
2%
1%
1170
1180
1180
1200
1210
1240
1260
1270
1320
1130
1130
1140
1150
1160
1180
1190
1210
1250
1110
1110
1120
1130
1140
1150
1160
1190
1220
1090
1100
1110
1110
1120
1130
1140
1160
(200
3
7
14
30
60
90
120
183
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1962-82
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
IN
PERIOD
(CON-
1.25
80%
2
50%
5
208
10
10%
25
4%
50
2%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
100
1%
SECUTIVE
2
5
DAYS)
50%
20%
10
10%
25
4%
3380
3310
3150
2870
2520
2130
4550
4470
4260
3850
3310
2750
2500
5240
5150
4950
4450
3820
3170
2840
6010
5930
5750
5180
4450
3710
3270
1
WEIGHTED SKEW
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
3
7
15
30
60
90
1990
50
2%
100
1%
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1962-82
DISCHARGE,
10%
2940
2200
15%
1820
20%
1640
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
258
560
30%
1500
40%
1430
50%
1380
60%
1340
70%
1290
75%
1270
80%
1250
85%
1220
90%
1200
95%
1150
1981,
131
DESCHUTES RIVER BASIN
14087500
CROOKED RIVER NEAR CULVER. OR
LOCATION.--Lat 44'33'40", long 121'16'1O", in sec.3 (50 ft west of ,-corner on line between sec.2 and 3), T.12 S., R.12 E., Jefferson
County, Hydrologic Unit 17070305, on right bank I ml upstream fran mouth, 1.2 ml downstream from Cove powerplant, and 4 ml
northwest of Culver.
DRAINAGE AREA.--4,330 nil2, approximately, of which 500 mi2 is probably noncontributing.
PERIOD OF RECORD.--October 1917 to September 1963.
Datum of gage is 1,664.86 ft National Geodetic VertIcal Datum of 1929. Prior to Aug. 2, 1945, staff
gage at several sites within 1.2 mi of present site at various datunis.
REMARKS.--Flow slightly regulated (since 1919) by Ochoco Reservoir (capacity, 47.500 acre-ftl and since Dec. 13, 1960, by Prineville
Reservoir (capacity, 152,800 acre-fl); occasional diurnal fluctuation caused by powerplant 1.2 mi above station. Water is
acres in 1946.
diverted for irrigation of land above station. The area served Increased from about 30,000 acres in 1918 to 37,000
Several hundred cubic feet per second of water diverted from Deschutes River for irrigation of other lands above station. Opal
Springs and several other springs within about 17 ml above station contribute about 1,000 ft3/s to flow.
GAGE.--Water-stage recorder.
AVERAGE OISCHARGE.--46 years, 1,553 ft3/s, 1,124,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge observed, 8,260 ft3/s P/er. 30. 31, 1943, gage height, 6.70 ft, site and datum then
in use; minimum recorded, 920 ft3/s Oct. 14, 1945.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1921-60
1920-60
STANDARD
DEVIAMINIMUM
CFS)
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
MAXIMUM
(CFS)
1060
1116
1156
1146
1170
1294
1204
1134
1060
1546
1522
2197
2326
3977
3387
995
970
1491
4820
2966
2464
AUGUST
SEPTEMBER
1028
1413
1442
ANNUAL
1234
2066
MEAN
(CFS)
TION
(CFS)
COEFFI-
dENT OF
VARIATION
1261
114
112
117
.10
.09
.17
.19
.30
.28
.33
.27
.20
.09
.09
.09
1559
237
.15
1285
1319
1413
1471
1751
2097
2547
1744
1376
1243
1229
131
125
242
273
532
590
838
464
269
PERIOD
(CONSECU-
PERCENT
OF
ANNUAL
RUNOFF
6.9
7.0
7.5
7.9
9.3
11.2
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NON-
EXCEEDANCE PROBABILITY, IN PERCENT
lIVE
2
5
DAYS)
50%
20%
1200
1200
1200
1210
1210
1220
1230
1240
1260
1
3
7
14
30
60
13.6
90
9.3
7.3
6.6
6.6
6.7
120
183
1120
1120
1120
1120
1130
1130
1140
1150
¶170
100
10
20
50
10%
5%
2%
1%
1080
1080
1080
1080
1080
1090
1100
1100
1130
1050
1050
1050
1050
1050
1050
1060
1070
1090
1010
1010
1010
1010
1010
1020
1030
1030
1060
987
987
987
987
987
990
1000
1010
1030
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1920-60
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1920-60
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50
100
2%
1%
PERIOD
(CONSECU-
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
TIVE
DAYS)
3170
4510
WEIGHTED SKEW =
6280
7410
8770
9750
10700
-.228
4340
3970
3510
3080
2690
2360
2160
3
7
15
30
60
90
5980
5490
4750
4110
3500
2980
2690
000
6450
5530
4780
4030
3370
3020
8210
7610
6460
5600
4690
3840
3420
9060
8450
7120
6200
5180
4180
3710
9860
9260
7770
6790
5670
4510
4000
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1920-60
DISCHARGE.
5%
2840
10%
2290
15%
1940
20%
1710
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
1580
OOf
1500
40%
1430
50%
1360
60%
1300
70%
1240
75%
1210
80%
1190
85%
1160
90%
1140
95%
1110
DESCHUTES RIVER BASIN
132
14088000
LAKE CREEK NEAR SISTERS, OR
sec.24, 1.13 S., R.8 E., Deschutes County, Hydrologic Unit 17070301, on left
LOCATION.--Lat 44°25'35", long 121433O", in NESW
bank 300 ft downstream fran Suttie Lake and 13 ml northwest of Sisters.
DRAINAGE AREA.--22.2
PERIOD OF RECORD.--June to November 1911, March to September 1912, May to October 1913, April
discharge only for sane periods, published in WSP 1318.
1915 to September 1982.
Monthly
Prior to Apr. 1, 1916,
GAGE.--Water-stage recorder. Datum of gage is 3,431.68 ft National Geodetic Vertical Datum of 1929.
Apr. 1, 1q16. to Oct. 12, 1928, nonrecording gage or
nonrecording gage at two sites 400 ft upstream at different datums.
Oct. 13, 1928, to Aug. 13, 1967, water-stage recorder at site
water-stage recorder at site 640 ft downstream at different datum.
600 ft downstream at datum 1.61 ft lower.
REMARKS.--Records excellent.
No regulation or diversion above station.
AVERAGE DISCHARGE.--67 years (water years 1915-82), 52.5 ft3/s, 38,040 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maxirnum recorded discharge, 446 ft3/s, Dec. 15, 1977, gage height, 4.78 ft. but may have been higher
during period of no gage-height record Dec. 23, 1964; minimum, 1.0 ft7s Nov. 4, 5. 1940; minimum daily, 8 ft3/s Nov. 5, 1940,
Oct. 6, 1942.
STATISTICAL SI.R4MARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
MEAN
(CFS)
(CFS)
(CFSI
STANDARD
DEVIATION
(CFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1919-82
1918-82
PERIOD
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
17
24
23
23
28
27
34
ANNUAL
7.2
67
33
98
41
13
.31
178
147
60
65
62
32
30
24
20
.53
.46
.39
.36
.25
.31
.44
132
56
169
111
38
29
157
22
22
19
69
27
77
62
80
67
162
43
40
15
25
29
39
32
9.2
5.6
31
5.1
52
5.2
6.5
9.6
10.3
9.9
8.9
.22
7
14
30
60
90
9.9
12.7
10.6
114
2
5
20%
155
243
10
10%
28
25
4%
372
429
30
30
25
32
35
21
23
24
26
27
27
30
16
18
13
16
13
11
20
22
23
24
24
25
27
18
15
17
14
19
21
17
19
5%
20
21
22
23
23
26
1%
7.7
9.6
16
21
19
22
24
20
22
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1918-82
PERIOD
(CONSECUTIVE
DAYS)
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
50
2%
100
399
367
475
298
338
239
556
498
378
258
131
181
137
192
142
lii
116
119
2
5
10
25
50%
20%
10%
4%
154
149
139
123
106
241
307
287
244
190
152
120
104
1%
489
1
WEIGHTED SKEW =
20
100
20
4.9
.21
50
2%
26
27
28
29
50
2%
10
10%
5.1
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
5
20%
31
120
183
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1916-82
1.25
80%
2
50%
6.3
.24
.17
.17
11
1
3
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.085
3
7
15
30
60
90
90
80
229
202
165
135
110
96
219
170
431
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1918-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
lOS
10%
15%
20%
25%
30%
40%
50%
60%
70%
75%
80%
85%
90%
95%
89
77
69
63
57
49
43
39
35
34
32
30
28
25
133
DESCHUTES RIVER BASIN
METOLIUS RIVER NEAR GRANDVIEW, OR
14091500
17070301, Deschutes
County, Hydrologic Unit
LOCATION.--Lat 449733", long 121°28'55", in SE,SW sec.i2, 1.11 5., R.1O E., Jefferson
National Forest, on right bank 1.0 ml upstream fran maximun controlled pool of Lake Billy Chinook, 15.0 ml northwest of Culver,
and at mile 13.6.
Hydrologic drainage boundary
DRAINAGE AREA.--3i6 miZ, at cableway 1.0 ml downstream, where all discharge measurements are made.
uncertain owing to ground-water exchange.
March 1912 to December 1913, October
PERIOD OF RECORD.--April 1910 to February 1912 (gage heights and discharge measurements only),Hubbard's
ranch, near Grandview"
1921 to September 1982. Published as "at Hubbard's ranch, near Sisters" 1910, and as "at
19 10-13.
Detum of gage is 1,974.36 ft National Geodetic Vertical Datum of 1929 (levels by Portland General
GAGE.--Wa_her-stage recorder.
different datum. Oct. 1, 1921, to May 3,
Electric Co.). Prior to Dec. 31, 1913, nonrecording gage at site 2.3 mi upstream alsite
2.7 mi downstream al datum 64 ft lower.
1949, nonrecording gage and May 4, 1949, to June 18, 1963, water-stage recorder at
REMARXS.--No regulation.
Records herein are for
Many anail diversions for irrigation above station. Stream is spring fed.
measuring site.
AVERAGE DISCHARGE.--62 years (water years 1913, 1922-82), 1,493 ft'/s, 1,082,000
acre-ft/yr.
EXTREMES FOR PERIOD OF RECDRD.--Maximun discharge, 7,530 ft3/s Dec. 24. 1964, gage
height, 6.81 fl; minimum, 1,080 ft/s Feb. 17,
1932, Oct. 2-31, Nov. 6, 7, 10-14, 1942.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1923-82
1922-82
DEVIAMINIMUM
MAXIMUM
ICFS(
ICFS)
UONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
1081
1140
1)10
SEPTEMBER
1154
1148
1157
1162
1244
1196
1173
1136
1103
ANNUAL
1)67
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
MEAN
TION
)CFSI
ICFS)
CDEFFI- PERCENT
OF
CIENT OF
ANNUAL
VARIATION
123
145
253
263
274
219
151
131
.11
1631
1845
1492
160
.11
181
7.5
7.8
8.3
8.5
8.7
8.5
8.6
9.0
9.1
8.5
7.9
7.6
.12
.14
.12
192
224
187
PERIOD
(CONSECU-
RUNOFF
.09
.10
.17
.17
.18
.14
.12
1345
1392
1494
1523
1556
1526
1543
1606
1636
1517
1414
1364
1560
1816
2454
2250
2333
2504
1960
2095
2118
1910
1746
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEOANCE PROBABILITY, IN PERCENT
DISCHARGE,
STANDARD
.10
TIVE
2
5
10
20
50
100
DAYS)
50%
20%
10%
5%
2%
1%
1280
1280
1280
1290
1300
1320
1330
1340
1370
1180
1130
1140
1)00
1)00
11)0
1)10
1)20
1050
1060
1060
1070
1080
1090
1100
1110
1120
1020
1030
1030
1040
1050
1060
1070
1080
1100
1
3
7
14
30
60
90
120
183
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
PERIOD
80%
1980
50%
20%
2600
WEIGHTED SKEW =
3560
10
25
50
100
10%
4%
2%
1%
4260
5220
6010
1160
1170
1180
1130
1140
1)90
1)50
1210
1170
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL. IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
ICON5
1)40
1)50
MAGNITUDE AND PROBABILITY OF AIINUAL HIGH FLOIl
1922-82
BASED ON PERIOD OF RECORD
DISCHARGE,
2
1200
1210
1220
1230
1240
1270
100
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1922-82
1.25
1)90
1)90
SECU-
lIVE
2
DAYSI
50%
15
2420
2220
2050
1910
3230
2930
2590
2290
30
60
90
1800
1710
1670
2070
7
1930
1850
50
4%
2%
4690
4210
3520
2870
2440
5390
4830
3960
3110
2580
2280
2130
e
S4O
.490
25
10
5
20
3840
3460
2983
2540
2240
2050
1950
2)90
2060
00
6150
5510
4420
3360
2720
2370
2190
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1922-82
DISCHARGE,
58
19)0
10%
1800
15%
1730
20%
1680
IN CFS, WHICH WAS EQUALED OR EXCEEDEO FOR INDICATED PERCYIT
25%
1630
30%
1580
40%
1510
50%
1460
60%
14)0
70%
1350
75%
1330
r ilIE
80%
1300
853
1270
90%
1230
95%
1180
134
DESCHUTES RIVER BASIN
14092500
DESCHUTES RIVER NEAR MADRAS, OR
LOCATION.--Lat 44'43'34', long 1211445", in SESII1 sec.1, T.10 S., R.12 E., Jefferson County, Hydrologic Unit 17070306. on right
bank 400 ft downstream from reregulating dam, 2.7 ml downstream from Pelton Dam, 8.5 mi northwest of Madras, and at mile 100.1.
DRAINAGE AREA.--7,820m12, approximately.
PERIOD OF RECORD.--October 1923 to September 1982.
Datum of gage is 1,390.25 1t National Geodetic Vertical Datum of 1929 llevels by Portland General
See WSP 1738 for history of changes prior to by. 23, 1957.
GAGE.--Water-stage recorder.
Electric Co.).
REMARKS.--Diurnal fluctuation caused by Lake Simtustus and reregulating reservoir since 1957, combined capacity for normal operation.
6,500 acre-ft. Some winter and spring runoff stored in Ochoco Reservoir, capacity, 47,500 acre-ft, in Crescent Lake. Crane
Prairie and Wickiup Reservoirs, combined capacity, 354,600 acre-ft, and since 1960, in Prineville Reservoir, capacity, 152,800
acre-ft, and since 1964, in Lake Billy Chinook, capacity, 534,700 acre-ft. Large diversions in upper basin for irrigation.
AVERAGE DISCHARGE.--59 years, 4,493 ft3/s, 3,255,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 15,800 ft/s Dec. 28, 1964, gage height, 6.29 ft; maximum gage height, 6.89 ft
Jan. 1,
on dam.
1943, site and datin then in use; minimum discharge, 916 ft3/s July 4, 1982, caused by power company testing control gates
STATISTICAL SUMMARIES (BEFORE CONSTRUCTION OF PELTON DAM)
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1926-56
1925-56
STANDARD
DEVIAMONTH
MINIMUM
MAXIMUM
MEAN
TION
ICFS)
ICFS)
(CFS)
ICFS)
CDEFFI- PERCENT
CIENT OF
OF
ANNUAL
VAPIATION
4773
5102
6520
6968
8187
7155
8495
6949
5759
4498
4309
4375
3709
4227
4615
4735
5056
5413
5496
4438
4136
3715
3582
3629
415
438
646
750
962
916
1279
806
698
406
384
387
.11
AUGUST
SEPTEMBER
3098
3570
3731
3844
3900
4135
3723
3431
3239
3090
3015
3022
ANNUAL
3591
5632
4391
542
.12
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
PERIOD
(CONSECU-
RUNOFF
TIVE
2
5
10
20
50
100
DAYS)
50%
20%
10%
5%
2%
1%
3400
3410
3420
3440
3460
3500
3540
3590
3730
3190
3200
3210
3220
3230
3250
3280
3320
3420
3100
3110
3120
3120
3130
3140
3160
3190
3280
3030
3040
3040
3050
3060
3060
3070
3100
3180
2960
2960
2970
2970
2980
2980
2980
3000
3070
7.0
8.0
.10
.14
.16
.19
.17
1
3
8.7
7
9.0
9.6
14
30
60
10.3
10.4
.23
.18
.17
90
8.4
7.8
7.0
6.8
6.9
.11
.11
.11
120
183
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1925-56
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1925-56
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
1.25
80%
6580
2
5
50%
20%
8160
10200
10
25
50
100
10%
4%
2%
1%
11600
13200
PERIOD
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
(CDN-
EXCEEOANCE PROBABILITY, IN PERCENT
SECU-
TIVE
2
5
DAYS)
50%
20%
7760
7420
6900
6340
5890
5540
5310
9780
9310
8470
7710
7050
6480
10
25
50
100
10%
4%
2%
1%
14400
1
WEIGHTED SKEW =
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS. AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.174
3
7
15
30
60
90
6)40
11100
10600
9510
8650
7840
7100
6690
12800
12200
10800
9870
8870
7880
7380
14100
13400
11800
10800
9660
8460
7890
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1925-56
DISCHARGE,
5%
6430
10%
5730
15%
5310
20%
4980
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
4770
30%
4590
40%
4370
50%
4170
60%
3990
70%
3760
75%
3650
80%
3540
85%
3440
90%
3350
95%
3230
35
DESCHUTES RIVER BASIN
DESCHUTES RIVER NEAR MADRAS, OR--Continued
14092500
STATISTICAL SUMMARIES (AFTER COMPLETION OF ROUND BUTTE DAM)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1965-82
1964-R2
MONTHLY AND ANNUAL MEAN DISCHARGES
STAN-
COEFFI-
DARD
dENT OF
VARI-
DEVIAMINIMUM
(OFY)
'106TH
5357
4615
498
ANNUAL
3951
5097
5361
6655
8097
3152
OF
ANNUAL
RUNOFF
ATION
2
5
DAYS)
SOC
20%
00
3010
3110
3220
3350
3550
3610
3630
3650
3720
2900
3000
3110
3220
3400
3440
3460
3480
3
10.2
14
30
60
.10
9.5
9.5
8.8
7.8
7.6
7.3
.09
.08
7.1
7.1
.09
.13
.19
.25
.26
.18
.13
.11
.11
3240
3330
3460
3610
3820
3890
3930
3970
4040
1
7
90
120
183
IN PERCENT
PER I OD
(CON-
1.25
80%
2
5
50%
20%
3550
50
100
20
1%
2820
2920
3020
3110
3260
3300
3320
3330
3410
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1964-82
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY,
20
50
0
100
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD
DISCHARGE,
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
TIVE
7.1
8.3
9.3
.11
452
420
3558
SEPTEMBER
JULY
)CFS)
3081
AUGUST
3305
3094
3455
3602
3554
3492
3059
3064
JUNE
ICES)
9590
6804
5505
5134
4786
4718
4414
JANUARY
FEBRUARY
MAY
1)06
681
1068
1308
1357
861
568
447
420
358
304
3085
3521
APRIL
)CFS)
MEAN
4105
4620
5174
5641
5243
5259
4895
4345
4232
4022
3939
3036
OCTOBER
NOVEMBER
DECEMBER
MARCH
MAXIMIJM
PERIOD
(CONSECU-
PERCENT
3
25
50
00
0%
4%
2%
IS
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
SECU-
lIVE
2
5
10
25
50
100
DAYS)
50%
20%
10%
4%
2%
1%
8210
8000
7550
6860
6270
5740
5570
10600
10200
9460
8490
7530
6700
6410
12300
11800
10800
9640
8390
7350
6930
14600
13800
12500
11200
9510
8210
7590
WEIGHTED SKEW =
7
15
30
60
90
DIJRATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1964-82
DISCHARGE,
5%
6780
I 0%
6080
I 5%
5670
20%
5330
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
5090
:
SOS
4870
40%
4540
00%
4300
0%
4090
70%
3930
85%
75%
3&50
3780
3710
90%
3610
3410
136
DESCHUTES RIVER BASIN
¶4093000
SHITIKE CREEK NEAR WARM SPRINGS, OR
LOCATION.--Lat 4445'41", long 12113'57", In NWNW
sec.30, 1.9 S. R.13 E., Jefferson County, Hydrologic Unit 17070306, Warm
Springs Indlam Reservation, on left bank 1.9 ci east of Warm Springs and at mile 0.3.
DRAINAGE AREA,--1O5 mi2.
PERIOD OF RECORD.--October 1911 to September 1916, October 1923 to September 1928, October 1972 to September 1974.
GAGE.--Nonrecording gage.
REMARKS.--No regulation.
Altitude of gage is 1,380 ft, fran, topographic map.
Some water is diverted for mill pond at point 0.3 ml above station.
AVERAGE DISCHARGE.--12 years, 110 ft3/s, 79.695 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum daily discharge, 2,300 ft'/s Jan. 15, 1974; minimum daily, 20 ft/s Dec. 8-15, 1972.
STATISTICAL SLE4MARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
MEAN
(CFS)
STANDARD
DEVIATION
(CFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD
1913-74
1912-74
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
PERIOD
ICONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
42
50
64
ANNUAL
106
167
204
432
63
19
96
32
40
60
65
66
261
209
108
132
135
118
200
131
41
86
69
47
36
36
238
315
213
106
155
148
45
77
52
67
60
25
84
17
.48
.33
.31
.29
.52
.50
.37
.29
71
175
110
33
.30
54
99
64
39
105
4.8
7.3
8.2
10.0
10.2
9.0
9.9
11.8
11.2
8.0
.30
.34
.37
.75
7
5
20%
524
934
31
37
37
39
120
183
57
67
45
56
32
33
33
35
36
37
40
51
20
5%
50
2%
100
1%
29
29
30
30
32
33
34
37
48
5.1
4.5
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1912-74
PERIOD
10
25
50
100
10%
4%
2%
1%
SECUTIVE
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
2
50%
20%
10%
867
703
534
367
1240
1000
15
482
388
313
237
30
60
90
192
162
152
271
5
10
25
4%
50
2%
100
1%
1280
1
WEIGHTED SKEW =
35
36
40
42
DAYS)
306
10
10%
90
30
60
(CON2
5
20%
47
49
50
54
14
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
2
50%
43
45
46
1
3
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1912-74
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.255
3
7
219
197
735
480
332
260
229
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1912-74
DISCHARGE,
5%
242
10%
186
15%
164
20%
146
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
130
30%
121
40%
I0
50%
60%
70%
75%
80%
85%
90%
95%
90
79
69
64
60
56
49
42
137
DESCHUTES RIVER BASIN
14093500
DESCHUTES RIVER AT MECCA, OR
LOCATION.--Lat 44°46'20', long 1211230", in SW sec.20, 1.9 S., R.13 E., Jefferson County. Hydrologic Unit 17070306, at road
bridge, 1.5 ml downstream from Shitike Creek.
DRAINAGE AREA.--7,940 m12, approximately.
PERIOD OF RECORD.--June 1911 to January 1927.
Altitude of gage is 1,350 ft National Geodetic Vertical Datum of 1929 Ifrorn river-profile map>.
GAGE.--Water-stage recorder.
to Aug. (0, 1924. staff gage at same site and datum.
Prior
REMARKS.--Many diversions for irrigation above station (about 56,000 acres Irrigated in 1911; 71,500 acres in 1927). Some regulation
by Ochoco Reservoir (capacily, 47,500 acre-ft) since 1919, and Crescent Lake and Crane Prairie Reservoir since 1922.
AVERAGE DISCHARGE.--15 years (water years 1912-26>, 4,891 ft3/s.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 15,200 ft3/s Jan. 6, 1923, gage height, 6.9 ft, from rating curve extended above
11,000 ft3/s; minimum, 3,170 ft3/s Aug. 27-30, 1920.
STAll STICAL SIVIMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
1912-27
STANDARD
COEFFI-
MONTH
(CFS)
MAXIMUM
ICFS>
MEAN
lION
(CFS>
(CFS)
VARIATION
PERCENT
PERIOD
OF
ANNUAL
RUNOFF
(CONSECU-
TIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
3487
42(4
4299
4547
4469
4722
4476
3620
3437
3300
3306
3276
4595
5700
6455
6475
4158
4688
49(4
7241
5511
ANNUAL
4152
5507
7710
7583
7720
6022
5606
4550
4524
5177
312
337
560
637
883
5725
970
6380
1079
1130
872
5329
4727
4248
3896
3963
4892
.08
.07
7.1
.12
.16
.17
.17
.21
691
.18
.16
413
.11
391
.10
429
.09
1
8.0
8.4
8.8
9.4
9.8
10.9
9.1
.11
3
7
14
30
60
90
120
183
8.1
5
20%
10
10%
25
4%
50
2%
PERIOD
SECUTIVE
100
1%
DAYS)
8260
9720
11600
12700
20
10%
5%
3780
3790
3800
3830
3880
3930
4000
4080
4270
3490
3490
3510
3530
3580
3620
3690
3750
3920
3330
3330
3350
3380
3420
3460
3520
3580
3720
3190
3200
3220
3250
3290
3320
3380
3430
3560
5
(00
50
2%
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
2
50%
20%
10
10%
25
4%
11200
10400
9310
8350
7790
7170
6820
12100
11200
9850
8770
8210
7560
7190
13200
12000
10400
9210
8650
7970
7600
5
50
2%
100
1%
14100
9660
9080
8290
7530
1
WEIGHTED SKEW
10
20%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1912-26
(CON2
2
50%
100
DISCHARGE, (N CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
50%
INTERVAL,
7.2
6.6
6.7
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1912-26
1.25
80%
IN CFS, FOR INDICATED RECURRENCE
IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE,
DEVIA- dENT OF
MINIMUM
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1913-26
3
7
.216
15
30
5990
6460
6140
60
90
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1912-26
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
7230
10%
6470
15%
5990
20%
5600
25%
5300
30%
5140
40%
4870
50%
4690
60%
4480
70%
4300
75%
4210
80
4050
85%
3880
90%
3700
95%
3470
138
DESCHUTES RIVER BASIN
14097100
WARM SPRINGS RIVER NEAR KAHNEETA HOT SPRINGS, OR
LOCATION.--Lat 44'51'24", long l210855', in SESW sec.23, T.8 S., R.13 E. , Wasco County, Hydrologic Unit 17070306, Warm Springs
Indian Reservation, on right bank 25 ft upstream from bridge. 2.5 ml east of Kahneeta Hot Springs, and at mile 4.6.
n12.
DRAINAGE AREA.--526
PERIOD OF RECORO.--October 1972 to September 1982.
GAGE.--Water-stage recorder.
REMARKS.--No regulation.
Altitude of gage is 1,400 ft, from topographic nap.
Diversions above station.
AVERAGE OISCHARGE.--1O years, 442 ft3/s, 11.41 in/yr. 320,200 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maxjrnum discharge, 6,540 ft3/s Dec. 15, 1977, gage height, 8.86 ft; minimum daily, 160 ft3/s Jan.
2. 1979.
STATIST I CAL SUIIMAR I ES
MONTHLY AND ANNUAL MEAN DISCHARGES
1973-82
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1974-82
STANDARD
DEVIAMONTH
MINIMUM
MAXIMUM
ICFSI
ICFS)
220
244
277
JANUARY
FEBRUARY
JULY
201
264
274
278
278
246
216
AUGUST
SEPTEMBER
212
215
323
ANNUAL
259
APRIL
MAY
JUNE
lION
ICFSI
)CFS)
3)8
OCTOBER
NOVEMBER
DECEMBER
MARCH
MEAN
COEFFI-
PERCENT
dENT OF
VARI-
ANNUAL
RUNOFF
ATION
263
308
34
48
.13
.15
4.9
5.8
1210
1520
1534
837
805
819
606
650
679
575
309
415
351
182
.51
11.4
12.2
12.8
10.8
511
518
803
301
410
284
260
255
154
198
176
63
660
442
396
401
.64
.52
.32
34
.30
.38
.43
.22
.16
.13
127
.29
42
PERIOD
2
5
10
20
50
100
DAYS)
50%
20%
10%
5%
2%
1%
228
230
194
177
164
197
181
231
231
201
187
193
233
238
243
247
262
211
218
167
177
184
195
1
3
7
14
30
60
9.6
9.7
7.7
5.3
90
120
183
80%
1880
50%
20%
3300
WEIGHTED SKEW =
58O
10
25
50
100
10%
4%
2%
1%
7240
--
223
226
238
202
210
215
217
205
209
229
224
211
100
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1973-82
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
5
205
4.9
4.8
DISCHARGE,
2
EXCEEDANCE PROBABILITY, IN PERCENT
TIVE
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1973-82
1.25
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NON-
ICONSECU-
OF
PERIOD
ICONSECU-
-
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
TIVE
2
DAYS)
50%
2640
2180
-.255
7
1670
15
1250
954
762
696
30
60
90
5
20%
10
25
50
100
10%
4%
2%
1%
4620
3830
2870
1970
5690
4780
3600
2380
1380
1050
1610
1200
1060
85%
90%
95
934
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1973-82
DISCHARGE,
5%
902
10%
744
15%
659
20%
597
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
538
30%
474
40%
363
50%
319
60%
294
70%
274
75%
262
80%
249
237
229
221
1,
139
DESCHUTES RIVER BASIN
WHITE RIVER NEAR GOVERNMENT CAMP, OR
14097200
LOCATION.--Lvt 4510'4(V, long 121'3430", in fIEOSWO sec.32, T.4 S., R.1O E. , Wasco County, Hydrologic Unit 17070306, in Mount Hood
National Forest, on left bank at Fnitb Spring, 1.4 ni above KIip Creek, and at mile 33.3.
DRAINAGE AREA.--40.7 ni2.
PERIOD OF RECORD.--JuIy 1969 to October 1979. July 1980 to September 1981.
Altitude of gage is 2,740 ft fran topographic map.
GAGE.--llater-stage recorder.
REMARKS.--No regulation or diversion above station.
AVERAGE DISCHAPGE.--li yenrv,
155 fi/s, 55.05 in/yr. 119,500 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Masimum discharge, 3,650 ft3/s Dec. 13, 1977, gage height, 6.63 ft1 minimum, 20 ft3/s Jan. 6, 1977.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIATION
ICFS)
(CFS)
(CFSI
(CFS)
117
22
87
229
224
155
118
185
183
82
82
123
307
231
145
143
110
73
SEPTEMBER
59
46
44
65
46
23
20
ANNUAL
74
165
52
NOVE1IBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
46
59
49
44
48
60
127
126
76
71
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1971-79
1970-81
COEFFI-
dENT OF
(CONSECUTIVE
DAYS)
OF
ANNUAL
RUNOFF
VARIATION
.32
3.6
.75
.68
.53
.44
.67
5.9
11.6
11.3
14
9.4
9.3
30
60
.22
.47
41
PERIOD
PERCENT
.62
.42
1
7
9.2
90
120
183
2
50%
46
46
48
50
54
57
61
66
3
15.5
11.7
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
94
.31
3.7
.31
3.3
IN CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
586
50%
20%
1280
2590
10
10%
25
4%
50
2%
47
50
44
47
52
49
52
63
42
57
74
100
1%
35
35
35
38
42
45
48
49
54
IN CFS, FOR INDICATED RECURRENCE
IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE,
IN
INTERVAL,
PERIOD
SECII-
100
lIVE
DAYS)
1%
2
50%
5
10
20%
10%
1780
1300
911
700
570
438
376
2040
1480
987
768
642
25
4%
50
100
2%
1%
3640
1200
1
WEIGHTED SKEW =
44
38
38
38
40
50
2%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1970-81
(CON5
41
41
20
5%
00
.31
DISCHARGE,
2
10%
5.6
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1970-81
1.25
80%
10
5
20%
-.351
3
915
7
711
15
30
544
428
336
292
60
90
491
417
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1970-81
DISCHARGE,
5%
470
10%
341
15%
273
20%
225
IN CFS, WHICH WAS EQUALED DR EXCEEDED FOR INDICATED PERCENT OF TIME
25
195
30%
171
408
143
50%
118
60%
70%
75%
80%
858
90%
95%
96
77
70
64
58
53
49
140
DESCHUTES RIVER BASIN
14101500
WHITE RIVER BELOW TYGH VALLEY, OR
LOCATION.--Lat 450 1430", long 121°0538, in NE*NE* sec.7, T.4 S., R.14 E., Wasco County, Hydrologic Unit 17070306, on left bank
200 ft downstream from former Pacific Power & Light Co. powerplant at White River Falls, 3.9 mi east of town of Tygh Valley. and
at mile 2.0.
DRAINAGE AREA.--417 mi2.
PERIOD OF RECORD.--Ocl-ober- 1917 to September 1982.
GAGE.--Water-stage recorder. Datum of gage is 870.15 ft National Geodetic Vertical Datum of 1929 (levels by Pacific Power & Light
Co.).
July 28, 1931, to Sept. 30, 1954, at site 700 ft
Prior to July 28, 1931. al- site 750 ft downstream at different datum.
downstream at different datuns.
REMARKS.--No regulation.
Diversions above station for Irrigation.
AVERAGE DISCHARGE.--65 years, 427 ft/s, 309,400 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 13,300 ft3/s Jan. 6, 1923. gage height, about 13.3 ft, site and datum then In use,
from rating curve extended above 5,000 ft3/s; minimum, 7.5 ft3/s Aug. 31, 1961.
STATISTICAL SI8IMARIES
¶'IONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1919-82
1918-82
STAN-
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
)CFS)
ICFS)
132
96
80
86
286
622
1683
1998
1574
1428
1445
1818
1222
392
190
182
139
726
88
113
120
117
128
129
223
202
MEAN
ICES)
DARD
DEVIATION
(CFS)
¶53
267
517
602
649
569
695
PERCENT
OF
dENT OF
VARIANNUAL
ATION
RUNOFF
COEFFI-
2
5
10
20
50
DAYS)
50%
20%
10%
5%
2%
1%
106
107
109
90
81
68
91
83
93
96
85
88
93
98
75
76
78
64
65
66
82
76
80
84
87
92
106
.29
.51
3.0
5.2
.75
10.1
11.7
14
12.6
30
11.1
60
90
.66
.53
.40
69
26
23
427
131
.31
1
3
7
13.5
14.8
9.1
3.9
2.6
2.5
112
117
124
130
138
178
120
183
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
2
5
50%
20%
10
10%
25
4%
50
100
2%
1%
PERIOD
(CONSECUTIVE
DAYS)
1780
3060
5280
7010
9490
11500
102
107
126
111
116
141
71
71
76
79
83
88
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
2
5
50%
20%
2550
2150
4300
3510
2620
10
10%
25
50
2%
100
4%
5540
4460
3200
2260
7170
5700
3910
2610
8410
6640
4420
2840
9660
7580
4910
3040
1670
1340
1140
1830
1450
1220
1910
1510
1260
1980
1550
1290
1%
13800
1
WEIGHTED SKEW =
87
91
95
100
116
70
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD
1918-82
DISCHARGE,
1.25
101
106
100
100
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1918-82
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
TIVE
387
398
345
225
259
342
265
199
135
127
469
(CONSECU-
45
136
.37
.45
.57
.34
.20
.18
761
PERIOD
-.005
3
1720
1380
1140
7
15
30
60
90
949
836
1940
1500
1220
1050
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1918-82
DISCHARGE,
5%
180
I
0%
928
15%
767
20%
658
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
574
30%
499
40%
373
50%
272
60%
206
70%
164
75%
150
80%
139
85
129
90%
118
95%
105
141
DESCIÜJTES RIVER BASIN
14103000
DESCHUTES RIVER AT MOODY, NEAR BIGGS, OR
LOCATION.--Lat 4537'20", long 12005405e, in SWSE sec.26, T.2 N., P.15 E., Sherman County, Hydrologic Unit 17070306, on right bank
at Moody, 4.0 ni southwest of Biggs, and at mile 1.4.
DRAINAGE AREA.--l0,500 m12, approximately.
Monthly discharge only for
PERIOD OF RECORD.--October 1897 to December 1899 (published as "near Moro"), July 1906 to September 1982.
some periods, published In WSP 1318.
Datum of gage is 167.54 fl- National Geodetic Vertical Datum of 1929. Oct. 19, 1897, to Dec. 31, 1899,
GAGE.--Water-stage recorder.
nonrecording gage at nile 10 mi upstream at different datum. July 22, 1906, to July 18, 1930, nonrecording gage at site 300 ft
downstream at datum 0.50 ft lower.
Some winter and spring runoff stored in Ochoco
REMARKS.--Soqne fluctuation caused by regulation at Lake Simtustus since 1957.
Reservoir, capacity, 46,420 acre-ft, in Crescent Lake, Crane Prairie and Wlcklup Reservoirs, combined capacity, 323.390 acre-ft
and since 1960, In Prineville Reservoir (see station 14080400), and sInce 1964 In Lake Billy Chinook (see station 14092100).
Large diversions In upper river basin for irrigation.
AVERAGE DISCHARGE.--78 years, 5,827 ft3/s, 4,222,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--MaxImum discharge, 15,500 ft3/s Dec. 22, 1964, gage height, 11.80 ft, from rating curve extended
above 47.000 ft3/s; minimum, 2,400 ft3/s Dec. 5, 1951.
STATISTICAL SUMMARIES (BEFORE CONSTRUCTION OF UPSTREAM RESERVOIRS)
MONTHLY AND ANNUAL MEAN DISCHARGES
MAGNITUDE AND FROBAOILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1899-22
1898-22
STAN-
MONTH
MINIMUM
MAXIMUM
(CFS)
ICFS)
MEAN
(CFS)
DARD
DEVIAlION
ICES)
COEFFI- PERCENT
CIENT OF
OF
ANNUAL
VARIATION
RUNOFF
PERIOD
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARy
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
4029
4713
4804
5049
5305
592
5117
6059
3792
6493
9378
0030
9419
13880
14350
11860
10570
10660
8698
6746
6499
6664
6852
7494
8075
8782
7697
6612
5588
4913
4913
1136
2257
2230
1470
i623
1485
1196
729
659
4980
7866
6517
832
5672
6424
5078
4394
3905
3679
.12
.18
.24
.17
.30
.28
.17
iiO6
1611
6.5
7.7
3
8.5
8.7
7
14
9.5
30
10.3
60
11.1
90
120
183
.21
9.8
.22
8.4
.21
7.1
.15
.13
6.2
6.2
.13
1
PERIOD
(CON-
5
20%
10
10%
25
4%
50
2%
SECUlIVE
100
1%
DAYS)
I2iOO
16300
22200
26300
10%
20
5%
4530
4530
4600
4680
4750
4810
4870
4950
5180
4020
4020
4080
4160
4230
4300
4360
4440
4680
3770
3770
3820
3890
3940
4020
4080
4160
4400
3570
3570
3620
3670
3700
3790
3840
3920
4160
10
50
2%
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
25
4%
iO
5
20%
iD%
21100
24900
22000
50
2%
100
1%
31700
15900
14300
12400
10900
9840
1
WEIGHTED SKEW =
5
20%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1898-22
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY. IN PERCENT
2
50%
2
50%
100
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1898-22
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.179
3
7
15
30
60
90
9140
8600
18700
15600
13200
11600
10500
10000
18100
i4800
12800
11400
iO800
29900
26600
21600
17i00
14300
12300
11800
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD i898-22
DISCHARGE,
5%
10700
10%
9410
15%
8460
20%
7940
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
7450
30%
7010
40%
6370
50%
5880
60%
5490
70%
5220
75%
51i0
80%
4940
85%
4760
90%
4480
95%
4230
42
DETCHUTES RIVER BASIN
1il73000
DESCHLITES RIVER AT MOODY, NEAR BIGGS, OR--Conrinued
STATISTICAL SUMMARIES (AFTER THE COMPLETION OF UPSTREAM RESERVOIRS)
MONTHLY AND ANNUAL MEAN DISCHARGES
1965-82
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1966-82
STANDARD
PERIOD
(CONSECU-
FE ROE NT
OEVIA- CET )F
MONTH
MINIMUM
MAXIMUM
)CFSI
ICFSI
MEAN
TION
VRRI-
ICES)
ICFS)
ATION
ANNUAL
RUNOFF
TIVE
DAYS)
3385
3910
4610
5086
AUGUST
4202
3992
3980
SEPTEMBER
3957
5594
6420
13150
11290
11750
13580
9246
7428
7643
5917
5359
5092
ANNUAL
4687
7171
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
4401
5058
4467
4141
4624
5294
6939
7786
7284
7029
6439
5907
6.6
7.5
9.9
.11
515
534
.10
2147
1775
.31
.23
1881
5367
953
4679
4439
4459
559
409
321
.26
.28
.20
.17
.18
.12
.09
.07
5848
766
.13
1966
1287
1025
1
3
7
11.1
10.4
10.0
14
30
50
90
20
9.2
.4
7.6
6.7
6.3
6.3
1
83
IN CFS, FDR INDICATED RECURRENCE INTERVAL, (N
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
5
20%
15900
25400
25
50
100
ICONSECU-
10%
4%
2%
1%
TIVE
3430
3500
3610
3810
3930
3980
4000
4060
4190
20
50
100
5%
2(1
1%
3340
3410
3520
3760
3860
3900
3910
3970
4090
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY. IN PERCENT
10
25
50
100
20%
10%
4%
2%
1%
13400
12100
11100
9980
21100
28800
24700
20600
42500
35100
27700
20500
8900
7950
7630
1)300
9860
9210
90%
95%
2
50
5
45100
1
WEIGHTED SKEW =
3550
3620
3730
3900
4030
4090
4120
4180
4340
I0
I0
5
DISCHARGE,
10
33200
3810
3880
3980
4100
4250
4340
4390
4470
4870
PERIOD
DAYS)
10600
20%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
1965-82
BASED ON PERIOD OF RECORD
DISCHARGE,
1.25
2
50%
00
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1965-82
80%
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
DISCHARGE,
COEFFI-
.475
3
7
15
30
60
90
18600
16100
13600
16400
13100
11200
10300
15400
13000
11600
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1965-82
DISCHARGE, IN CFS, WHICH WAS EQUALED DR EXCEEDED FOR INDICATED PERCENT OF TIME
5
9190
10%
8170
15%
7530
20%
6'9O
25%
6560
3O
6210
40%
5680
50%
5260
60%
4930
70%
4640
75%
4500
80%
4390
85%
4280
4140
3980
143
NOSIER CREEK BASIN
14113200
NOSIER CREEK NEAR NOSIER, OR
LOCATION.--Lat 45'38'55", long 12122'35", in NW*NW sec.19, T.2 N., R.12 E., Wasco County, Hydrologic UnIt 17070105, on left bank
0.1 ml downstream from West Fork Nosier Creek, 2.5 ni southeast of Nosier, and at mile 3.0.
DRAINAGE AREA.--41.5 miZ.
PERIOD OF RECORD.--April 1963 to September 1981.
Altitude of gage is 425 It, from topographic map. Prior to July 22, 1976, water-stage recorder at site
GAGE.--Water-stage recorder.
July 22, 1976, to Dec. 12, 1977, water-stage recorder at site 20 ft upstream at datum
20 ft upstream at datum 3.57 ft higher.
1.57 ft higher.
REMARKS.--No regulation.
Several snail pumping diversions for irrigation above station.
AVERAGE DISCHARGE.--18 years, 24.5 ftfs, 20,650 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--flaximum discharge, 4,790 ft3/s Dec. 23, 1964, gage height, 8.9 fl, from flood profile, from rating
curve extended above 1,000 ft3/s on basis of slope-area measurement of peak flow; minimum, 0.35 ft3/s July 25, 26, Aug. 6, 7,
1978.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
STANDARD
DEVIAlION
MONTH
(CFS
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD
1965-81
1964-81
PERIOD
COEFFI- PERCENT
OF
CIENT OF
VARIANNUAL
ATION
RUNOFF
ICONSECUlIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
2.4
3.6
3.7
3.7
3.8
5.4
4.7
3.1
MAY
JUNE
129
144
1.1
95
26
9.1
3.7
2.6
2.6
ANNUAL
3.0
53
.15
.81
.5
6.2
1.24
52
70
37
44
27
7.4
42
96
240
1.7
1.0
1.0
JULY
AUGUST
SEPTEMBER
3.0
7.7
3.7
29
169
71
65
37
12
4.2
1.8
2.1
1.6
1.9
.8
.73
.52
.67
.72
.60
.43
.38
.27
.20
.4
.4
29
14
.9
1
2.2
12.3
27.9
20.5
18.9
10.9
3.6
1.2
3
2
5
50%
20%
10
10%
25
4%
7
14
670
1610
25'O
.9
.7
.9
.8
1.1
.5
.5
.5
.6
.7
1.0
1.3
1.5
1.2
1.4
2.1
2.0
1.1
1.1
.7
1.2
1.2
1.3
1.5
1.7
1.9
2.8
.8
.6
.6
.6
.8
1.2
1.4
1.7
2.4
50
2%
100
1%
.5
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1964-81
IN
PERIOD
(CONSECUTIVE
100
1%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
5
50%
20%
602
462
333
1150
802
521
336
206
157
10
10%
25
4%
1380
1540
999
599
376
50
2%
100
1%
4360
1
WEIGHTED SKEW =
20
5%
100
DAYS)
290
10
10%
.5
.48
50
2%
5
20%
.6
DISCHARGE, Ill CFS, FOR INDICATED RECURRENCE INTERVAL,
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
1.25
2
50%
30
60
90
120
183
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1964-81
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.168
3
7
228
156
113
93
15
30
60
90
131
923
573
363
215
168
140
218
173
145
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1964-81
DISCHARGE,
5%
119
0%
75
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
15%
20%
25%
30%
53
38
28
21
40%
9.3
50%
5.3
60%
3.8
70%
2.9
75%
2.5
80%
2.1
85%
1.9
90%
1.6
95%
1.3
144
HOOD RIVER BASIN
14113400
DOG RIVER NEAR PARKDALE, OR
LOCATION.--Lat 45'24'30', long 121°31'lO", In SW sec.1I, 1.2 S., R.10 E., 1-lood River County, Hydrologic Unit 17070105, Mount Hood
National Forest, on right bank 100 ft upstream fran city of The Dallas municipal diversion to Mill Creek basin, and 8.8 ml south
of Parkdale.
DRAINAGE AREA.--4.50 mi2.
PERIOD OF RECORD.--October 1959 to September 1971.
GAGE.--Water-stage recorder and concrete control.
of The Dallas).
Datum of gage Is 4,347 ft National Geodetic Vertical Datum of 1929 (levels by city
REMARKS.--No regulation or diversion above station.
AVERAGE DISCHARGE.--12 years, 7.09 ft'/s, 21.40 In/yr. 5,140 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 100 ft3/s May 29, 1969, gage height, 3.92 ft. from rating curve extended above 30
ft3/s; minimum. 0.03 ft3/s Dec. 1. 1967, result of freezeup.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
UONTH
MINIMUM
MAXIMUM
MEAN
STANDARD
DEVIAlION
(CFS)
(CFS)
(CFS
(CFS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
2.1
2.1
ANNUAL
4.6
3.6
5.6
2.0
14
2.1
12
1.8
17
2.5
3.5
4.5
5.5
8.7
2.0
3.0
8.4
7.5
3.8
2.9
2.2
13
6.1
11
6.4
40
36
1.1
10
PERIOD
(CONSECUTIVE
DAYS)
.17
.31
2.9
4.0
3
.81
5.2
7
.50
6.3
14
.60
.55
.41
.56
.46
10.1
7.1
30
60
90
8.3
3.6
2.8
5.2
3.4
2.6
8.7
8.4
3.9
4.2
1.2
2.9
.7
.29
.23
7.2
1.9
.27
18
7.2
4.6
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
.4
16
18
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1962-71
1961-71
1
7.4
18.1
.47
2
5
20%
10
25
10%
4%
50
2%
PERIOD
(CONSECUTIVE
100
1%
DAYS)
24
36
WEIGHTED SKEW =
55
5
20%
20
5%
10
10%
1.4
1.5
.4
.6
.2
.1
.3
.1
1.7
1.9
1.1
1.5
.8
.6
1.4
1.2
2.1
1.9
2.1
1.8
1.7
2.0
2.2
2.3
2.6
2.1
2.1
2.4
2.0
2.0
2.0
2.2
50
100
2%
1%
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD
1961-71
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
2
50%
I 00
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1961-71
1.25
80%
EXCEEOANCE PROBABILITY, IN PERCENT
2.2
2.5
2.7
3.2
120
183
21.1
9.6
4.9
3.4
DISCHARGE, IN CFS. FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NON-
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
10
5
20%
10%
46
42
58
37
47
25
4%
50
100
2%
1%
85%
90%
Th
.300
1.
31
3
7
28
25
15
22
32
41
30
60
90
19
28
16
22
13
18
36
27
22
53
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1961-71
DISCHARGE,
5%
21
10%
15%
20%
16
13
11
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
9.1
30%
7.7
40%
5.9
50%
4.7
60%
3.7
70%
3.1
75%
2.8
80%
2.6
2.4
2.2
95%
1.9
145
HOOD RIVER BASIN
14118500
WEST FORK HOOD RIVER NEAR DEE, OR
LOCATION.--Lat 45'35'55", long 121'38'05", in SE* sec.1, T.1 N., R.9 E., Hood River County, Hydrologic Unit 17070105,
0.3 mi upstream from Dead Point Creek, 0.8 ml northwest of Dee, and at mile 0.4.
on left bank
DRAINAGE AREA.--95.6 mi2.
PERIOD OF RECORD.--September 1913 to February 1916 (incomplete), June 1932 to September 1982.
GAGE.--Water-stage recorder.
Datum of gmge is 802.1 ft National Geodetic Vertical Datum of 1929.
Feb. 12, 1916, nonrecording gage at site 0.5 ml upstream at different datum.
Sept.
1913, to
1,
REMARKS.--No regulation. Dee Irrigation District canal diverts from right bank about 6 mi above station for irrigation above station
and in Middle Fork basin.
Diversions from Green Point Creek basin above station for irrigation near Oak Grove; water from two ot
these diversions is carried in Hood River Irrigation District canal.
AVERAGE DISCHARGE.--5i years Iwater years 1914, 1933-82), 558 ft3/s, 404,300 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge not determined, Dec. 22, 1964, gage height, 27.0 ft from floodmarks; maximum daily.
15,000 ft3/s Dec. 23, 1964; minimum, 93 ft3/s Aug. 22, 1941.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
MINIMUM
MAXIMUM
(CFS)
(CFS)
MEAN
(CFS)
STANDARD
DEVIATION
(CFS)
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD
1934-82
1933-82
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
PERIOD
(CONSECUTIVE
DAYS)
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
125
109
817
1499
202
2589
2362
191
229
386
288
1918
i39i
i95
140
109
109
1335
1305
1132
496
267
378
267
837
312
283
629
944
858
785
675
754
696
477
260
173
.61
349
525
483
370
203
230
238
219
.55
.56
.56
.47
.30
178
172
86
38
46
.33
.22
.26
558
123
.22
4.2
9.4
1
3
7
14.1
12.8
11.7
14
30
60
90
10.1
.31
11.2
.34
.46
10.4
7.1
3.9
120
183
4820
5
20%
6880
10
25
50
100
10%
4%
2%
1%
i2000
14800
17000
10
20
50
10%
5%
2%
1%
130
i32
134
115
1)6
107
109
118
110
102
103
104
96
97
98
139
145
121
126
113
117
102
157
169
134
142
123
130
107
109
115
190
155
141
268
211
187
92
93
94
96
97
102
108
116
145
00
100
107
122
113
131
171
121
155
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD
1933-82
PERIOD
(CONSECUlIVE
DAYS)
DISCHARGE. IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL
EXCEEOANCE PROBABILITY. IN PERCENT
2
50%
5
10
20%
10%
7390
5310
3670
2530
8790
6420
4360
2930
2170
25
4%
50
2%
100
1%
10400
7800
5190
3380
2460
1820
1520
11500
8810
5780
12500
9810
6340
3970
2830
2060
1670
9200
5080
3630
2570
1
WEIGHTED SKEW =
5
20%
100
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS, AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
2
50%
2
50%
2.7
2.6
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1933-82
1.25
80%
DISCHARGE, IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS. AND ANNUAL NONEXCEEDANCE PROBABILITY, IN PERCENT
.091
3
7
1850
1430
1140
1020
15
30
60
90
1900
1460
1270
i630
1390
3680
2660
1940
1600
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1933-82
DISCHARGE.
5%
t490
iO%
1090
15%
894
20%
766
IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
25%
683
30%
612
40%
494
50%
403
60%
316
70%
238
75%
210
80%
188
85%
168
90%
150
95%
133
146
HOOD RIVER BASIN
14120000
HOOD RIVER AT TUCKER BRIDGE, NEAR HOOD RIVER, OR
LOCATION.--Lat 4539'2O", long 121'32'50", in SE sec.15, T.2 N., 9.10 E., Hood River County, Hydrologic Unit 17070105, on right bank
25 ft downstream from Tucker Bridge, 0.5 mi upstream from Odell Creek, 4.0 ml southwest of town of Hood River, and at mile 6.1.
DRAINAGE AREA.--279 miu.
PERIOD OF RECORD.--October 1897 to Oecember 1899, September 1913 to September 1914, August 1915 to September 1917, January 1965 to
September 1982. Monthly discharge only for some periods, published in WSP 1318.
GAGE.--Water-s-tage recorder nd crest-stage gage. Datum of gage is 383.2 f-I National Geodetic Vertical Datum of 1929 (Oregon State
Highway Department bench mark). Prior to July 23, 1915, monrecording gage at bridge at various datums.
July 23 to Dec. 21, 1915,
water-stage recorder at site 0.8 ml upstream at different datum. January 1916 to September 1917, monrecording gage at bridge at
different datum. Jan. 16 to July 23, 1965, nonr-ecording gage at bridge.
REMARKS.--Some daily fluctuation caused by diversion dam above station and sawmill ml Dee.
Diversions for irrigation above station.
AVERAGE DISCHARGE.--22 years (water years 1898-99, 1914, 1916-17, 1966-82), 1,089 ft3/s, 789,000 acre-ft/yr.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 22,300 ft/s Dec.
Sept. 16, 1915, caused by temporary storage behind dam at Dee.
13,
1977, gage height, 15.59 ft; minimum recorded, 136 ft/s
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Dec. 22, 1954, reached a stage of 20.6 ft, present datum, discharge, 33,200 ft3/s, from
rating curve extended above 1,500 ft3/s on basis of slope-area measurement of peak flow.
STATISTICAL SUMMARIES
MONTHLY AND ANNUAL MEAN DISCHARGES
MONTH
OCTOBER
NOVEMBER
DECEMBER
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
ANNUAL
MINIMUM
MAXIMUM
(CFS)
(CFS)
327
431
438
363
430
681
704
559
464
256
266
929
1989
4109
3313
3367
2915
2358
2418
2439
271
1687
1088
804
465
1664
MEAN
ICFSI
STANDARD
DEVIATION
(CFSI
499
1043
1663
1722
1657
1352
1317
1298
1059
674
448
MAGNITUDE AND PROBABILITY OF ANNUAL LOW FLOW
BASED ON PERIOD OF RECORD 1899-82
1898-82
IN CFS, FOR INDICATED RECURRENCE
INTERVAL, IN YEARS, AND ANNUAL NONEXCEEDANCE PROBABILITY. IN PERCENT
DISCHARGE,
COEFFI- PERCENT
CIENT OF
OF
VARIANNUAL
ATION
RUNOFF
169
PERIOD
(CONSECUlIVE
DAYS)
.34
.47
.56
3.8
7.9
12.6
13.1
12.6
10.3
10.0
9.9
8.0
30
60
90
120
183
424
496
564
385
193
125
.48
.47
.39
.33
.38
.53
.57
.43
.29
3
7
14
1090
309
.28
488
931
819
774
532
431
1
2
5
10
20
50
100
50
20
10%
5%
2%
1%
269
273
282
297
312
338
363
400
520
223
228
239
252
206
194
211
200
212
224
237
255
183
190
7290
5
20%
11800
18500
10
25
10%
4%
23100
29200
50
2%
IN CFS, FOR INDICATED RECURRENCE
IN YEARS, AND ANNUAL
EXCEEDANCE PROBABILITY, IN PERCENT
DISCHARGE,
PERIOD
100
1%
INTERVAL,
SECUTIVE
2
5
DAYS)
50%
20%
10%
25
4%
50
2%
8590
6420
4780
3490
2780
2270
2010
13100
15300
10900
7710
5360
3940
3090
2640
17300
12300
8580
5920
4240
3300
2780
18400
13000
9050
6240
4390
3400
2850
10
100
1%
33800
1
WEIGHTED SKEW =
243
268
291
345
MAGNITUDE AND PROBABILITY OF ANNUAL HIGH FLOW
BASED ON PERIOD OF RECORD 1898-82
ICON2
279
304
292
318
394
100
IN CFS, FOR INDICATED RECURRENCE INTERVAL, IN
YEARS. AND ANNUAL EXCEEDANCE PROBABILITY, IN PERCENT
50%
267
310
340
430
3.2
DISCHARGE,
1.25
266
287
202
213
226
5.1
3.4
MAGNITUDE AND PROBABILITY OF INSTANTANEOUS PEAK FLOW
BASED ON PERIOD OF RECORD 1898-82
80%
223
235
248
-.209
3
7
15
30
60
90
9400
6760
4750
3590
2850
2460
DURATION TABLE OF DAILY MEAN FLOW FOR PERIOD OF RECORD 1898-82
DISCHARGE, IN CFS, WHICH WAS EQUALED OR EXCEEDED FOR INDICATED PERCENT OF TIME
5%
2660
10%
2060
15%
1740
20%
1510
25%
1350
30%
1220
40%
987
50%
829
60%
685
70%
540
75%
475
80%
426
85%
383
90%
341
95%
298
ALPHABETICAL INDEX OF GAGING STATIONS
STATION NO.
13330500
14078000
15061000
14025000
10397000
14054500
13226500
13227000
13275000
13274200
13273000
14032000
10370000
14042000
14042500
13320000
10384000
11340500
14060000
14087400
14087500
14080500
STATION NAME
Bear Creek near Wal Iowa
Beaver Creek near Paulina
Big Marsh Creek at Hoey Ranch, near Crescent
Birch Creek at Rieth
Bridge Creek near Frenchglen
Brown Creek near La Pine
Bully Creek at Warmsprings, near Vale
Bully Creek near Vale
Burnt River at Huntington
Burnt River near Bridgeport
Burnt River near Hereford:
before the construction of Unity Dam
after the completion of Unity Dam
Butter Creek near Pine City
Camas Creek near Lakeview
Camas Creek near Lehman
Camas Creek near Ukiah
Catherine Creek near Union:
before the construction of Big Creek Diversion
after the completion of Big Creek Diversion
Chewaucan River near Paisley
Cottonwood Creek near Lakeview:
before the construction of Cottonwood Dam
after the completion of Cottonwood Dam
Crescent Creek at Crescent Lake, near Crescent
Crooked River below Opal Springs, near Culver
Crooked River near Culver
after the completion of Prinevi I le Dam
14050500
10371500
14052000
14064500
14093500
14103000
PAGE
69
125
116
81
19
109
43
44
51
50
48
49
84
12
95
96
62
63
16
23
24
115
130
131
Crooked River near Prinevi I le:
before the construction of Prineville Dam
14079500
14051000
147
Crooked River near Post
Cultus Creek above Crane Prairie Reservoir, near La Pine:
before the installation of fish screens
after the installation of fish screens
Cultus River above Cultus Creek, near La Pine
Deep Creek above Adel
Deer Creek above Crane Prairie Reservoir, near La Pine
Deschutes River at Benharn Falls, near Bend:
before the construction of Wickiup Dam
after the completion of Wickiup Dam
Deschul-es River at Mecca
Deschutes River at Moody, near Biggs:
before the construction of upstream reservoirs
after the completion of upstream reservoirs
128
129
127
104
105
103
14
106
118
119
137
141
142
148
ALPHABETICAL INDEX OF GAGING STATIONS--CONTINUED
STATION NAME
STATION NO.
14113400
10396000
10371000
11339500
Deschutes River at Pringle Fal Is, near La Pine:
before the construction of Wickiup flrn
after the completion of Wickiup Dam
Deschutes River below Bend
Deschutes River below Crane Prairie Reservoir, nr La Pine
Deschutes River below Wickiup Reservoir, near La Pine
Deschutes River below Lava Island, near Bend:
before the construction of Wickiup Dam
after the completion of Wickiup Dam
Deschutes River below Snow Creek, near La Pine
Deschutes River near Culver
Deschutes River near Madras:
before the construction of Round Butte Dam
after the completion of Round Butte Dam
Dog River near Parkdale
Donner und BI itzen River near Frenchglen
Drake Creek near Adel
Drews Creek near Lakeview
13288200
Eagle Creek above Skull Creek, near New Bridge
14057500
14044500
Fall River near La Pine
Fox Creek at gorge, near Fox
13318800
13319000
13332500
13333300
13323500
13318500
Grande
Grande
Grande
Grande
Grande
Grande
10378500
14120000
13329500
Honey Creek near Plush
Hood River at Tucker Bridge, near Hood River
Hurricane Creek near Joseph
13292000
13323600
Imnaha River at lrnnaha
Indian Creek near Imbler
14048000
14040500
14038500
14046500
14038530
John Day River at McDonald Ferry
John Day River at Picture Gorge, near Dayville
John Day River at Prairie City:
during power canal diversion
after power canal diversion
John Day River at Service Creek
John Day River near John Day
11514500
11510700
11509500
Keene Creek near Ashland
Klamath River below John C. Boyle Powerplant, near Keno...
Klamath River at Keno
14057000
14070500
14054000
14056500
14066000
14050000
14076500
14092500
Ronde
Ronde
Ronde
Ronde
Ronde
Ronde
River
River
River
River
River
River
at Hilgard
at La Grande
at Rondowa
at Troy
near Elgin
near Hilgard
PAGE
112
113
122
108
111
120
121
102
124
134
135
144
18
13
22
56
114
98
60
61
71
72
64
59
15
146
67
58
65
101
93
90
91
100
92
32
31
30
14C)
ALPHABETICAL INDEX OF GAGING STATIONS--CONTINUED
STATION NO.
STATION NAME
14088000
14063000
13330000
Lake Creek near Sisters
Little Deschutes River near La Pine
Lostine River near Lostine
13220000
13228000
13215000
13214000
13220500
14022500
14091500
14044000
13331500
14113200
Maiheur River at Little Valley, near Hope
Malheur River at Vale
Malheur River below Warmsprings Reservoir, near Riverside
Maiheur River near Drewsey
Malheur River near Hope
McKay Creek near Pilot Rock
Metolius River near Grandview
Middle Fork John Day River at Ritter
Minam River at Minam
Mosier Creek near Nosier
13269300
14078500
14046000
14041500
13216500
13217500
14010800
14011000
North
North
North
North
North
North
North
North
14055500
13182000
13184000
13183000
13181000
Odell Creek near Crescent
Owyhee River above Lake Owyhee
Owyhee River at Owyhee ...
Owyhee River below Owyhee Dam
Owyhee River near Rome
13275500
13286700
Powder River near Baker
Powder River near Richland:
Fork
Fork
Fork
Fork
Fork
Fork
Fork
Fork
Burnt River near Whitney
Crooked River above Deep Creek
John Day River at Monument
John Day River near Dale
Malheur River above Beulah Res. near Beulah
Malheur River at Beulah
Walla Walla River near Milton Freewater
Walla Walla River near Milton
before the construction of Phi II ips Dam
13289500
13275300
after the completion of Phillips Dam
Powder River near Rob inette
Powder River near Sumpter
14052500
Quinn River near La Pine
14034800
Rhea Creek near Heppner
14093000
10403000
10393500
13270800
14010500
14010000
11497500
Shitike Creek at Warmsprings
Silver Creek near Riley
Silvies River near Burns
South Fork Burnt River above Barney Creek, near Unity
South Fork Walla Walla River below power plant, nr Milton
South Fork Walla Walla River near Milton
Sprague River near Beatty
PAGE
132
117
68
41
45
38
37
42
80
133
97
70
143
46
126
99
94
39
40
75
76
110
34
36
35
33
53
54
55
57
52
107
87
136
20
17
47
74
73
26
150
STATION NO.
ALPHABETICAL INDEX OF GAGING STATIONS--CONTINUED
STATION NAME
PAGE
27
123
89
11501000
14075000
14037500
Sprague River near Chiloquin
Squaw Creek near Sisters
Strawberry Creek above Slide Creek, near Prairie City
10406500
10366000
Trout Creek near Denio
Twentymile Creek near Adel
21
14022000
14020000
14021000
14026000
Umati I Ia River above McKay Creek, near Pendleton
Urnati I Ia River above Meacham Creek, near Gibbon
Umatilla River at Pendleton
Umatilla River at Yoakum:
before the construction of McKay Dam
after the completion of McKay Dam
79
77
78
14033500
13327500
14097100
14118500
14101500
14097200
11502500
11493500
14034500
14036000
11504000
Umati I Ia River near Umat! I Ia
Wal Iowa River near Joseph
Warm Springs River near Kahneeta Hot Springs
West Fork Hood River near Dee
White River below Tygh Valley
White River near Government Camp
Williamson River below Sprague River, near Chi loquin
Williamson River near Kiamath Agency
Wi I low Creek at Heppner
Willow Creek near Arlington
Wood River at Fort Klamath
GPO 796-365 (1994)
11
82
83
85
66
138
145
140
139
28
25
86
88
29