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Odeh, M. and C. Orvis (1998). Downstream fish passage design considerations and developments at hydroelectric projects in the north-east USA. Pages 267-280 in M. Jungwirth, S. Schmutz and S. Weiss, eds. Fish Migration and Fish Bypasses, Fishing News Books, Vienna (Austria).
As water wheels at mills in the north-eastern United States have been replaced with more modern turbine generators, the need to protect downstream migrating fishes has increased. To protect and guide fish from entrainment, devices such as closely spaced bar racks (angled or straight), louvres, curtain walls and netting have been used. Breaches, weirs, notches, chutes, pipes, multiple entrances and plunge pools are other features considered in the design development of downstream fish passage facilities. Critical elements of the design process include flow approach, attraction flow, behavioural guidance devices, bypass location, conveyance mechanism and plunge pool conditions. This chapter discusses the developments in design criteria for downstream fish passage facilities at hydroelectric sites in the north-east part of the USA. Targeted anadromous species include Atlantic salmon Salmo salar, American shad Alosa sapidissima, blueback herring Alosa aestivalis, and alewife Alosa pseudoharengus. Bioengineering perspectives on the design criteria, type of fish protection used and examples of existing facilities are offered.
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.umesc.usgs.gov/URL: http://www.umesc.usgs.gov/data_library/fisheries/fish_passage/odeh.html
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