Washington Phase II Fish Diversion Screen Evaluations in the Yakima River Basin, 2003 Annual Report.

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Description

In 2003, the Pacific Northwest National Laboratory (PNNL) evaluated 23 Phase II fish screen sites in the Yakima River Basin as part of a multi-year project for the Bonneville Power Administration on the effectiveness of fish screening devices. PNNL collected data to determine whether velocities in front of the screens and in the bypasses met the National Oceanic and Atmospheric Administration Fisheries (NOAA Fisheries, formerly the National Marine Fisheries Service [NMFS]) criteria to promote safe and timely fish passage. In addition, PNNL conducted underwater video surveys to evaluate the environmental and operational conditions of the screen sites with respect to ... continued below

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75 pages

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Vucelick, J.; McMichael, G. & Chamness, M. (Pacific Northwest National Laboratory) May 1, 2004.

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Description

In 2003, the Pacific Northwest National Laboratory (PNNL) evaluated 23 Phase II fish screen sites in the Yakima River Basin as part of a multi-year project for the Bonneville Power Administration on the effectiveness of fish screening devices. PNNL collected data to determine whether velocities in front of the screens and in the bypasses met the National Oceanic and Atmospheric Administration Fisheries (NOAA Fisheries, formerly the National Marine Fisheries Service [NMFS]) criteria to promote safe and timely fish passage. In addition, PNNL conducted underwater video surveys to evaluate the environmental and operational conditions of the screen sites with respect to fish passage. Based on evaluations in 2003, PNNL concluded that: (1) In general, water velocity conditions at the screen sites met fish passage criteria set by the NOAA Fisheries. (2) Conditions at most facilities would be expected to provide for safe juvenile fish passage. (3) Conditions at some facilities indicate that operation and/or maintenance should be modified to improve juvenile fish passage conditions. (4) Automated cleaning brushes generally functioned properly; chains and other moving parts were typically well greased and operative. (5) Removal of sediment buildup and accumulated leafy and woody debris could be improved at some sites.

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75 pages

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  • Report No.: DOE/BP-00000652-16
  • Grant Number: 652 REL 17
  • DOI: 10.2172/962128 | External Link
  • Office of Scientific & Technical Information Report Number: 962128
  • Archival Resource Key: ark:/67531/metadc931480

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  • May 1, 2004

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 2, 2016, 6:18 p.m.

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Vucelick, J.; McMichael, G. & Chamness, M. (Pacific Northwest National Laboratory). Washington Phase II Fish Diversion Screen Evaluations in the Yakima River Basin, 2003 Annual Report., report, May 1, 2004; Portland, Oregon. (digital.library.unt.edu/ark:/67531/metadc931480/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.