Angled Screens and Louvers for Diverting Fish at Power Plants

by Edward P. Taft, III, Ecologist; Environmental Engrg. Div., Stone & Webster Engrg. Corp., Boston, Mass.,
Yusuf G. Mussalli, (M.ASCE), Consultant; Environmental Engrg. Div., Stone & Webster Engrg. Corp., Boston, Mass.,


Serial Information: Journal of the Hydraulics Division, 1978, Vol. 104, Issue 5, Pg. 623-634


Document Type: Journal Paper

Abstract: Angled screens and louvers have been experimentally evaluated and developed for diverting fish to bypass within cooling water intake structures. Louvers have been shown to be greater than 90% effective in diverting a variety of fish species in both laboratory and prototype studies. Recent studies with angled traveling screens have shown them to be 100% effective in guiding fish to bypasses. Angled screen and fish transportation systems are presently under construction at two large power plants on Lake Ontario.

Subject Headings: Power plants | Fish management | Water intakes | Laboratory tests | Construction management | Lakes | Temperature effects | Cooling (wastewater treatment) | Lake Ontario

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