BPA Fish and Wildlife FY 1997 Proposal
Section 1. Administrative
Section 2. Narrative
Section 3. Budget
see CBFWA and BPA funding recommendations
Title of project
Naches River Irrigation Diversion Upgrade
BPA project number 5511500
Business name of agency, institution or organization requesting funding
Yakama Indian Nation
Sponsor type WA-Tribe
Proposal contact person or principal investigator
|Mailing address||P.O. Box 151
Toppenish, WA 98948
BPA technical contact ,
Biological opinion ID
NWPPC Program number
Currently an irrigation diversion off the mainstem Naches River roughly 200 meters above the mouth of Cowiche Creek captures most Cowiche Creek water, trading it for mainstem Naches water. The opportunity for adult fish to sense Cowiche Creek water is significantly reduced, thus Cowiche Creek is underutilized for spawning and rearing.
Project start year 1997 End year 1999
Start of operation and/or maintenance
Project development phase Implementation
Biological results achieved
Annual reports and technical papers
Specific measureable objectives
Fish density in Cowiche Creek will be determined pre- and post-project implementation throughout season of use.
Improving access into Cowiche Creek will improve anadromous fish stock health in the Yakima River Basin.
Underlying assumptions or critical constraints
The hydrograph will be similar to historic and water quality will remain adequate to support anadromous fish during season of use (i.e. discharge of toxic substances to the stream will not occur).
Juvenile fish density will be determined by mark and recapture methods. Three reaches will be sampled at three different times during the season of use (early fall through late spring). Equipment will include normal fish sampling tools.
Post-project redd counts will be compared to pre-project numbers to determine effects of the project.
Brief schedule of activities
The project would be initiated in year one with an engineering study of needed actions to retrofit the diversion to assure Cowiche Creek water is allowed to flow unobstructed to the confluence with the Naches River. In year two, construction will be completed. Juvenile fish surveys will be done in years one, two and four.
Managers believe rearing habitat for juvenile fish is severely limited in the basin. This project would redress rearing habitat function through increasing the amount of rearing habitat available.
Rearing habitat for juvenile fish is severely limited in the Yakima Basin, so much so that fish managers believe rearing habitat restoration is one of most important actions to restore stock health.
Summary of expected outcome
Access into Cowiche Creek will improve, thereby increasing number of juvenile and adult fish that utilize this stream.
Dependencies/opportunities for cooperation
Project design and implementation would be coordinated with the affected irrigation district, the WDOE, the WDFW, and the BOR.
Redd counts and juvenile fish density will occur in year four to determine effectiveness of the action.
|Historic costs||FY 1996 budget data*||Current and future funding needs|
|(none)||New project - no FY96 data available||1997: 33,600|
* For most projects, Authorized is the amount recommended by CBFWA and the Council. Planned is amount currently allocated. Contracted is the amount obligated to date of printout.
CBFWA funding review group Bonneville Dam - Priest Rapids Dam
Recommendation Tier 2 - fund when funds available
Recommended funding level $33,600