Event Title

Concurrent Sessions B: Columbia River Passage: Arturo Leon - The Development Process of Designing a Fish Bypass at a Hydroelectric Dam on the Columbia River

Location

Agriculture Production Theater, Oregon State University

Start Date

25-6-2013 3:30 PM

End Date

25-6-2013 3:50 PM

Description

Large volumes of spill at a hydroelectric dam, for the purpose of salmonid smolt passage, can be a potential source of elevated total dissolved gas levels, possible fish injuries and lost power generation for the Utility. To still safely pass out-migrating salmonid smolts via a non-turbine passage route, but address the negative aspects of large-volume spill, was the goal of Grant County PUD. Through the assemblage of a Bypass Design Team, made up of engineers, biologist, hydrologist and computer modelers, with the approach of looking at a multitude of disciplines –CDF work, acoustic fish studies, scaled hydraulic models of the dam, ect. –a fish bypass design was developed, constructed, and tested with amazing results. This presentation will be a case study review of that bypass design process used for both the fish bypass at Wanapum Dam and also Priest Rapids Dam.

Comments

Curtis Dotson has been the Fisheries Dept. of Grant County P.U.D for 17 years. Have worked primarily with salmonid smolt passage issues -ranging from turbine passage, bypass designs, survival studies and predation concern.

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Jun 25th, 3:30 PM Jun 25th, 3:50 PM

Concurrent Sessions B: Columbia River Passage: Arturo Leon - The Development Process of Designing a Fish Bypass at a Hydroelectric Dam on the Columbia River

Agriculture Production Theater, Oregon State University

Large volumes of spill at a hydroelectric dam, for the purpose of salmonid smolt passage, can be a potential source of elevated total dissolved gas levels, possible fish injuries and lost power generation for the Utility. To still safely pass out-migrating salmonid smolts via a non-turbine passage route, but address the negative aspects of large-volume spill, was the goal of Grant County PUD. Through the assemblage of a Bypass Design Team, made up of engineers, biologist, hydrologist and computer modelers, with the approach of looking at a multitude of disciplines –CDF work, acoustic fish studies, scaled hydraulic models of the dam, ect. –a fish bypass design was developed, constructed, and tested with amazing results. This presentation will be a case study review of that bypass design process used for both the fish bypass at Wanapum Dam and also Priest Rapids Dam.