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
Lower Snake Spillway Crest Drawdown
BPA project number 5516200
Business name of agency, institution or organization requesting funding
Sponsor type Placeholder
Proposal contact person or principal investigator
BPA technical contact ,
Biological opinion ID Research M&E Program; Hypothesis B3.3.
NWPPC Program number 5.0F.3, 5.3B.11
Project would attempt to prove/disprove hypothesis that smolt survival cannot be increased by drawdown of Snake River hydroelectric projects to spillway crest.
Project start year 1997 End year
Start of operation and/or maintenance 0
Project development phase PLANNING
The Corps is not planning to fund these projects based on a lack of scientific justification at this point.
Biological results achieved
Annual reports and technical papers
Results of study could affect volumes and timing of flows needed during the spring/summer migration; this in turn could affect amount and timing of availability of power from the hydrosystem; drawdowns, depending on the extent, can affect other uses of the dams and reservoirs, e.g., irrigation, recreation, use of juvenile collection facilities, etc. . In addition, the results of this study should clearly either support or counter the use of spillway crest drawdown to improve salmon survival, thereby directing the use of available funds to those measures that are truly improving the survival of listed stocks.
Specific measureable objectives
Determine:  fish guidance efficiency of shallowly submerged traveling screens operating under low hydrostatic head,  how to remove large numbers of smolts from gatewells,  effects of altered bypass conditions on smolt condition,  effects of altered dam operating conditions on adult passage and fallback,  effects on predation, and  interactive ecology in pools and river downstream from projects.
SMOLT SURVIVAL CANNOT BE INCREASED BY DRAWDOWN OF SNAKE RIVER HYDROELECTRIC PROJECTS TO SPILLWAY CREST.
Underlying assumptions or critical constraints
Brief schedule of activities
Summary of expected outcome
Dependencies/opportunities for cooperation
Risks associated with some tests are extremely high. Most cannot be addressed without a test drawdown during periods when smolts and/adults are actively migrating, thus placing large numbers of salmon at risk if problems are encountered.
|Historic costs||FY 1996 budget data*||Current and future funding needs|
|(none)||New project - no FY96 data available||1997: 0|
* 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 System Policy
Recommendation Tier 2 - fund when funds available
Recommended funding level $0