This report describes research done to evaluate the Prototype Surface Collector at Bonneville Dam, Powerhouse I, on the Columbia River. The surface collector is being evaluated as a means for bringing downstream migrating salmon and steelhead through the powerhouse while avoiding the turbines. The report describes evaluations conducted by PNNL, National Marine Fisheries Service, and various contractors using radio telemetry, hydroacoustics, and computational fluid dynamics models. The evaluation will provide information to the U.S. Army Corps of Engineers for their 2001 decision on whether to use surface flow bypass or extended-length submersible bar screens for long-term smolt passage at Bonneville Dam.
Revised: September 30, 2009 |
Published: June 1, 2001