Title

Development and Refinement of Turbine Intake Screen Technology on the Columbia River

Publication Date

1993

Publication Title

Fish Passage Policy and Technology: Proceedings of a Symposium

Start Page

123

End Page

128

Editors

Bates K;

Publisher

American Fisheries Society

Abstract

None. First paragraph: Numerous dams and locks constructed within the Columbia River basin over the past 60 years provide substantial flood control, power generation, navigation, irrigation, and recreation benefits to the United States Pacific Northwest region. However, these multiple purpose projects also form partial or complete barriers to migrations of highly valued anadromous salmonid species. Most mainstem projects provide passage facilities for both juvenile and adult migrants as a means to reduce adverse impacts. Mechanical bypass screens, located at turbine intakes, have been utilized extensively to improve passage survival for juvenile downstream migrants. This paper describes the development and continuing refinement of screen technology at the eight mainstem projects constructed and operated by the U.S. Army Corps of Engineers on the Columbia and lower Snake Rivers.

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