|Document Type:||Contract Report|
|Title:||Studies to evaluate the effectiveness of extended-length screens at The Dalles Dam, 1993|
|Author/Editor:||Dean A. Brege, R. F. Absolon, Benjamin P. Sandford, Douglas B. Dey|
|Publisher:||National Marine Fisheries Service|
|Contracting Agency:||U.S. Army Corps of Engineers. Portland, Oregon|
At The Dalles Dam in 1993, we evaluated fish guidance efficiency (FGE) of a prototype extended-length submersible bar screen and extended-length submersible traveling screen. We also assessed the effects of these extended screens and other system components on fish condition. Results from these evaluations were compared to concurrently obtained values with a standard traveling screen and are enumerated below.