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Title: Velocity Measurements at Three Fish Screening Facilities in the Yakima Basin, Washington : Summer 1989 Annual Report.

Technical Report ·
DOI:https://doi.org/10.2172/6121079· OSTI ID:6121079

The Pacific Northwest Laboratory (PNL) measured the velocity conditions at three fish screening facilities in the Yakima River Basin: Wapato, Chandler, and Easton Screens. The measurement objectives were different at the three screens. At Wapato, approach and sweep velocities were measured to evaluate the effect of rearing pens in the screen forebay. A complete survey was performed at the Chandler Screens. At Easton, velocity was measured behind the screens to provide information for the installation of porosity boards to balance flow through the screens. Salmon-rearing pens used at the Wapato Canal had a minimal effect on the magnitude of approach and sweep velocities at the face of the drum screens, although the pens caused increased turbulence and variability in water velocities. The net pens did not appear to affect flows through the three fish bypasses. 8 refs., 17 figs., 5 tabs.

Research Organization:
Pacific Northwest Laboratory., Richland, WA (USA)
Sponsoring Organization:
US Bonneville Power Administration
DOE Contract Number:
AC06-76RL01830
OSTI ID:
6121079
Report Number(s):
DOE/BP-01830-10; ON: DE91009711
Country of Publication:
United States
Language:
English