HYDROLOGIC AND HYDRAULIC
FIELD VIEW NOTES
BY: DMK /DJL/JEL
DATE: 5/19/06
1. LOCATION DATA
SR – Section: 2051/151
Waterway: Rattling Run
Municipality: Kiskiminetas Township
County: Armstrong
2. DESCRIPTION OF FLOODPLAIN
Upstream Left: Maintained yard, light brush along channel, two houses approximately 75
yards from channel
Upstream Right: Heavy brush approximately 30-35 yards off stream, house approximately
40 yards off stream
Downstream Left: Thick brush approximately 20 yards off of stream, building 40 yards off of
stream. Stream snakes left
Downstream Right: Heavy brush for approximately 40-50 yards off stream, active water pump
approximately 30 yards off stream
3. DESCRIPTION OF CHANNEL
(Alignment, Siltation, Debris, etc.)
Upstream: Very poor stream alignment, snakes right, 6 feet wide, 2-3 feet deep, rocky bottom
Downstream: 15 ft wide, 2-3 ft deep, rocky/sandy bottom, good alignment at bridge, active
water pump pumping water out of stream
4. SCOUR
(At existing substructure units)
Scour hole upstream, 5 feet above bridge and at inlet
5. EXISTING STRUCTURE DATA
Superstructure Type:
Multi Steel I-beam
Substructure Type:
Gravity concrete abutments with spread footing
Approximate Skew:
90º
Attached Utilities:
Power-lines overhead, waterlines downstream of bridge
Visible High Water Marks:
2.5-3 ft high marks on abutments
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HYDROLOGIC AND HYDRAULIC
FIELD VIEW NOTES
BY: DMK /DJL/JEL
DATE: 5/19/06
6. STREAM CHARACTERISTICS
Stream Ph:
7.0
Aquatic Life: Minnows, small warm water fishes
7. EXISTING OR POTENTIAL PROPERTY DAMAGE
Existing debris
Potential upstream yard/property damage if flooding occurs
8. NEAREST UPSTREAM STRUCTURE DATA:
N/A__X___
Type:
Measurements:
Sketch:
9. NEAREST DOWNSTREAM STRUCTURE DATA:
Type:
Steel Stringer
Measurements:
Roadway width (curb to curb): 23’-7”
Bridge deck width (out to out): 24’-7”
Minimum vertical clearance: 6’-0”
N/A______
Sketch:
10. OTHER COMMENTS:
Possible realignment of stream/roadway/bridge. Stream curves left along road upstream
then looking downstream curves left again. If stream were realigned and positioned at a
later time it could prevent unnecessary wear along upstream side of road
11. SUGGESTED PHOTOGRAPHS
_x__A. Looking Stations Ahead At Bridge
_x___B. Looking Stations Back At Bridge
_x___C. Looking Upstream From Bridge
_x___D. Looking Downstream From Bridge
_x___E. Looking At Bridge From Upstream
_x___F. Looking At Bridge From Downstream
N/A G. Nearest Upstream Structure
_x__H. Nearest Downstream Structure
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