Descaling and orifice passage efficiency studies at McNary Dam, 1995

Details

• Personal Author:
  McComas, R. L. ; Sandford, Benjamin P. ; Dey, Douglas B.
• Corporate Authors:
  Northwest Fisheries Science Center (U.S.). Coastal Zone and Estuarine Studies Division. ; United States. Army. Corps of Engineers. Walla Walla District.
• NOAA Program & Office:
  NMFS (National Marine Fisheries Service) ; NWFSC (Northwest Fisheries Science Center)
• Description:
  Extended-length submersible bar screens (ESBSs) have been tested at McNary Dam since 1991 as alternatives to standard-length submersible traveling screens (STSs) for guiding downstream migrating juvenile salmonids out of turbine intakes. During the 1995 spring and summer outmigration periods, the National Marine Fisheries Service conducted studies to evaluate the gatewell orifice passage efficiency (OPE) for chinook salmon and steelhead using an ESBS with a newly designed vertical barrier screen and an inlet flow vane. An auxiliary study compared juvenile fish descaling associated with two beam extension modifications in gatewells equipped with these new guidance devices.
• Keywords:
  Effect Of Dams On Evaluation Fish Screens Migratory Fishes Effect Of Dams On Fish Screens Migratory Fishes
• Format:
  PDF
• Document Type:
  Non-series Report
• Funding:
  Contract no. E86910060
• Place as Subject:
  McNary Dam (Or. and Wash.)
• License:
  https://creativecommons.org/publicdomain/zero/1.0/
• Rights Information:
  CC0 Public Domain
• Compliance:
  Library
• Main Document Checksum:
  urn:sha256:f40c6e75cb5e2d458ff86be5a51dd481bcdee146ad22d946b0866c42c3bc148b
• Download URL:
  https://repository.library.noaa.gov/view/noaa/56351/noaa_56351_DS1.pdf
• File Type:
  [PDF - 11.78 MB ]