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Title: A fisheries evaluation of the Wapato, Sunnyside, and Toppenish Creek canal fish screening facilities, spring 1988

Technical Report ·
DOI:https://doi.org/10.2172/6568753· OSTI ID:6568753

The Bonneville Power Administration, the United States Bureau of Reclamation, and the Washington State Department of Ecology are funding the construction and evaluation of fish passage and protection facilities at irrigation and hydroelectric diversions in the Yakima River Basin, Washington State. The programs provide offsite enhancement to compensate for fish and wildlife losses caused by hydroelectric development throughout the Columbia River Basin and address natural propagation of salmon to help mitigate the impact of irrigation in the Yakima River Basin. The Wapato, Sunnyside, and Toppenish Creek Screens are three of the facilities in the basin. This report evaluates the effectiveness of the screens in intercepting and returning juvenile salmonids unharmed to the river from which they were diverted. We evaluated the effectiveness of new screening facilities at the Toppenish Creek, Wapato, and Sunnyside canals in southcentral Washington State. Screen integrity tests indicated that fish released in front of the screens were prevented from entering the canal behind the screens. We conducted descaling tests at the Toppenish Creek Screens. We measured the time required for fish to move through the screen facilities. Methods used in 1988 were the same as those used at Sunnyside in 1985 and in subsequent years at Richland. Toppenish/Satus, and Wapato. 11 refs., 11 figs., 14 tabs.

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
DOE/AD
DOE Contract Number:
AC06-76RL01830
OSTI ID:
6568753
Report Number(s):
DOE/BP/01830-T1; ON: DE91000203
Country of Publication:
United States
Language:
English