Peshastin Creek Fish Barrier Removal
#04-1509 #04-1509
 Wenatchee Sub-basin Peshastin Creek Peshastin Creek Fish Barrier Removal
Organization Upper Columbia Salmon Recovery Board Lead Entity
Sponsor Chelan County Natural Resources Department
Status Completed
Schedule Start Date: 2/1/2005 End Date: 10/31/2006
Priority 1
Category Category: Restoration
Project Photo
DESCRIPTION
In 2005, CCNRD constructed a fish ladder, or fishway, at the Peshastin Irrigation District diversion structure on lower Peshastin Creek. This structure allows fish to access spawning and rearing habitat for steelhead, bull trout and Spring Chinook. The structure consists of a roughened channel fishway at a channel slope of 3.9% upstream from the dam axis on the left abutment. The project also included installation of fish screens at head gates. The dam was notched for a 16ft width. From that notch the roughened channel fishway extends upstream for approximately 87 feet. The fishway has two training walls for the entire length that extend to elevation 1180 (same as the left abutment elevation) and it was constructed with steel plate sections with rock support. Boulders were placed in the fishway invert to create a meandering flow pattern and provide shelter for fish. Two boulder weirs were placed immediately downstream from the fishway exit to backwater flashboard weirs at the channel's upstream exit. These weirs are required to meet hydraulic drop criteria of 6 inches. The existing dam notch will be closed when the fishway is in use.
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FUNDING
Proposed Cost $237,950.31
Requested Funds $0
Allocated Funds $237,950.31
Spent Funds $237,950.31
Balance $0
FUNDING SOURCES
PROJECT CONTACT
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LOCATION
Legislative District:12
Sections:29
County:Chelan
Chinook-Pop (ESU):Chinook-Upper Columbia River Spring, Wenatchee River, Endangered
Chinook2-Pop (ESU):Chinook-Upper Columbia River Summer/Fall, Not Warranted
HUC12:Lower Peshastin Creek (170200110503)
Steelhead-Pop (ESU):Steelhead-Upper Columbia River, Wenatchee River, Threatened
Township:T24NR18E
Lead Entity Area:Upper Columbia
Salmon Recovery Regions:Upper Columbia River
WRIA:Wenatchee
HUC8:Wenatchee (17020011)
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ACTIVITY-FISH PASSAGE IMPROVEMENT PCSRF
* Miles of Stream Made Accessible
113%
17 Actual
15 Planned
Miles
*Number of Blockages/Impediments/Barriers Impeding Passage 01 Number
ADDITIONAL INFORMATION