RISK MANAGEMENT
MAKING DECISIONS THAT COUNT
WATER DELIVERY AND MANAGEMENT
SINCE 1910
RICK DIEKER - MANAGER
YTID DIVERSION DAM AND HEADWORKS
WHAT ARE THE RISKS?
 ENDANGERED
SPECIES ACT
(ESA) IMPACTS TO YTID
OPERATIONS
 MAIN CANAL AND DIVERSION
DAM UPGRADE OR
REPLACEMENT
THE RISKS FURTHER DEFINED
STEELHEAD
 BULL TROUT
 IMPACT TO
EXISTING RIGHTS
 OPERATIONAL
CHANGES
REGULATED OR
NEGOTIATED?

ESA LISTED
SPECIES
 AGE
 UNSTABLE
GEOLOGY
 STORM EVENTS
 CANAL FAILURE
 LONG TERM
OPERATION
MAIN CANAL
LOOK BACKWARD TO LOOK
FORWARD
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STARTING WITH 100 YEAR
CELEBRATION OF WATER DELIVERY
1910 T0 2010
WHAT DO WE HAVE ?
WHAT DO WE NEED ?
DEVELOP STRATEGY TO HELP SOLVE
THE INDENTIFIED RISKS
SOME OF THE STRATEGY JUST
HAPPENED AND SOME WAS PLANNED
WHAT DO WE HAVE ?
TIETON DAM AND RIMROCK RESERVOIR
TIETON HYDROPOWER PROJECT
Rehabilitation and Betterment Project
1982-87
Complete piping of Delivery system
 78 Million Dollars construction cost
 220 miles of new pipe
 2000 plus turnouts
 New Reservoir at French Canyon
 6 pump stations
 2 in-line hydropower plants
 95% efficient delivery

EXISTING DEBT SERVICE ($$)
ENDS IN 2018
Cowiche Creek Watershed
Fish use and delisting discussion by David Child, DC Consulting LLC
Steelhead Redds and Abundance Estimates
Total number of redds detected (includes incomplete survey years, blank indicates no survey)
MSA
Streams Surveyed
Tieton River
Oak Creek
Ahtanum Creek
Upper Naches (Little
Naches)
Variety
2004
2005
2006
2007
2008
2009
2010
2011
18
2
1
15
3
9
13
27
12
16
1
4
8
3
28
28
27
70
4
16
Cowiche Creek
28
2
Middle Naches
Nile Creek
Bumping River
Bumping River
American River
American River
Rattlesnake Creek
Rattlesnake Creek
TOTAL NACHES REDDS:
13
15
23
20
2
2
16
11
40
4
0
9
14
26
1
106
156
20
19
20
27
33
48
8
10
32
*2012 Adult Radio Telemetry Data, 18 fish tracked to Cowiche Creek, so roughly ~240 possible fish in the system.
*Highest spawning redd/bed found near the mouth of Reynolds Creek in 2012
143
105
WHAT DO WE NEED?
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DEVELOP A STRATEGY TO HELP
SOLVE THE IDENTIFIED RISKS
MAKE THE YTID MAIN CANAL AN
INTEGRAL PART OF A FISH
RECOVERY/RESTORATION PROJECT
COWICHE CREEK PROJECT
MAIN CANAL ALTERNATIVES ANALYSIS
$$$$$$$$$$$$$$ MONEY
CCWUA PROJECT
YTID TO WHEEL WATER THROUGH
OUR SYSTEM TO CCWUA (WATER
DELIVERY AGREEMENT)
 CCWUA POINT OF DIVERSION
CHANGED FROM COWICHE CREEK TO
TIETON RIVER
 WATER NORMALLY DIVERTED FROM
CREEK LEFT IN STREAM FOR FISH
BENEFIT
 BUILD PARTNERSHIPS FOR CURRENT
AND FUTURE YTID PROJECTS
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Landowners and Irrigators
Bureau of Reclamation
Bonneville Power Administration
Washington Department of Fish and
Wildlife
Washington Department of Ecology
North Yakima Conservation District
Yakima Tributary Access and Habitat
Program
Yakima Tieton Irrigation District
Cowiche Creek Water Users Association
Washington River’s Conservancy (WA
Trout Unlimited)
Yakama Nation
Cowiche Canyon Conservancy
Yakima County
City of Yakima
Yakima Basin Fish and Wildlife Recovery
Board
NOAA Fisheries
South Central Washington Resource
Conservation and Development Council
ALTERNATIVES STUDY
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YTID MAIN CANAL REHABILITATION AND
COWICHE CREEK WATER EXCHANGE
Conceptual design and evaluation of
alternatives to increase the capacity of the
main canal replacement or upgrade from
345 to 370 cfs.
Evaluate Design changes to YTID pipeline
system and reservoir to deliver water to
Cowiche Basin Users.
Preliminary Construction Costs for these
options and determine the apparent best
alternative.
STUFF HAPPENS
NEXT STEPS, OPTIONS AND
PROJECTS
CONTINUE TO REFINE THE MAIN
CANAL ALTERNATIVES DESIGN AND
COSTS
 CONTINUE TO DEVELOP
COMPHREHENSIVE LOOK AT COWICHE
CREEK SOUTH FORK AND MAIN STEM.
 INCLUDE THE AHTANUM BASIN
OPTION
 INVOLVEMENT AND SUPPORT OF THE
YAKIMA BASIN INTEGRATED PLAN
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THANK YOU