columbia river basin fish and wildlife program annual ...

3.13.1 ALTERNATIVE CONDUIT SYSTEM FOR JUVENILE FISH(Test and Evaluate: November 15, 1987; Report January 1988)403(d)(2)Test and evaluate an alternative conduit system for efficientlyconveying juvenile fish from hydroelectric powerhouse intakes tothe tailwater. This study shall test a design with potentialfor broad application at dams where turbine intake deflectorsare in use or under consideration.ACTION ITEM ACTIVITY SUMMARY:Objectives:To test and evaluate alternative conduit systems for bypassingjuvenile salmon and steelhead around dams.Background and Progress to Date:Plans:Projects:As juvenile salmon and steelhead migrate downstream past dams, theymay be injured by pressurized conduit bypass systems used at mostdams. A past study performed by the U.S. Army Corps of Engineers(USACE) and Idaho Cooperative Fish and Wildlife Research Unit(ICFWRU) demonstrated that an open flume has potential for minimizinginjury to fish. BPA contracted with these two agencies to design andtest different types of flumes to help pass fish safely around dams.The project was completed in March 1988. Results were used in thedesign of the new smolt bypass system at Little Goose Dam.Action Item 3.1 has been completed.None.43