Fish Passage Technologies: Protection at Hydropower Facilities

Publication Date



fish passage, protection, Hydropower, entrainment, turbine mortality, mortality, fish protection, Columbia River, irrigation, diversion, California, dams

Report number


Publication place

Washington D.C.


U.S. Government Printing Office


None supplied. From executive summary: The focus of this report is technologies for fish passage around hydropower generation facilities and protection against entrainment and turbine mortality. Emphasis is given to Federal Energy Regulatory Commission (FERC)-licensed hydropower projects where fish protection is a subject of controversy and congressional interest due to the Federal Power Act (FPA) and the Electric Consumers Protection Act (ECPA). Thus insitutional issues related to the FERC-relicensing are also discussed. (Major points of controversy are highlighted in box 1-1.) Federal hydropower projects, especially in the Columbia River Basin, and irrigation water diversions in the Pacific Northwest and California are included to the extent that they provide information on fish passage technologies (see table 1-1). Many of the technologies discussed are applicable to other types of dams and water diversions. In fact, there are many more obstructions to fish passage that are not covered by FERC-licensing requirements, than are (approximately 76,000 dams versus 1,825 FERC-licensed facilities).

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