Title

Pool-and-Chute Fishways

Authors

K Bates

Publication Date

1991

Notes

ISBN 0-913235-72-5

Publication Title

Fisheries Bioengineering Symposium: American Fisheries Society Symposium 10

Start Page

268

End Page

277

Editors

Colt J;White RJ;

Publication Place

Bethesda, MD

Publisher

American Fisheries Society

Abstract

The pool-and-chute fishway is an economical means of providing fish passage over constructed barriers. Pool-and-chute fishways resemble pool-and-weir fishways at low flows and become baffled chutes at moderate to high flows. The economy of the concept is achieved by exceeding the usual criteria of fishway pool volume based on energy dissipation in each pool. The size and complexity of the structure are thus reduced. Design guidelines covering appropriate application and geometry ensure hydraulic conditions that allow fish passage. Cost comparisons based on actual and estimated construction costs of pool-and-chute and other styles of fishways verify the economic benefit of the concept.

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