skip to main content

Title: Fish passage mitigation of impacts from hydroelectric power projects in the United States

Obstruction of fish movements by dams continues to be the major environmental issue facing the hydropower industry in the US. Dams block upstream migrations, which can cut off adult fish form their historical spawning grounds and severely curtail reproduction. Conversely, downstream-migrating fish may be entrained into the turbine intake flow and suffer turbine-passage injury or mortality. Hydroelectric projects can interfere with the migrations of a wide variety of fish. Maintenance, restoration or enhancement of populations of these species may require the construction of facilities to allow for upstream and downstream fish passage. The Federal Energy Regulatory Commission (FERC), by law, must give fish and wildlife resources equal consideration with power production in its licensing decisions, must be satisfied that a project is consistent with comprehensive plans for a waterway (including fisheries management plans), and must consider all federal and state resource agency terms and conditions for the protection of fish and wildlife. As a consequence, FERC often requires fish passage mitigation measures as a condition of the hydropower license when such measures are deemed necessary for the protection of fish. Much of the recent research and development efforts of the US Department of Energy`s Hydropower Program have focused on themore » mitigation of impacts to upstream and downstream fish passage. This paper descries three components of that effort: (1) a survey of environmental mitigation measures at hydropower sites across the country; (2) a critical review of the effectiveness of fish passage mitigation measures at 16 case study sites; and (3) ongoing efforts to develop new turbine designs that minimize turbine-passage mortality.« less
Authors:
 [1]
  1. Oak Ridge National Lab., TN (United States). Environmental Sciences Div.
Publication Date:
OSTI Identifier:
392793
Report Number(s):
CONF-9609257--1
ON: DE97000152; TRN: 97:000048
DOE Contract Number:
AC05-96OR22464
Resource Type:
Conference
Resource Relation:
Conference: International conference on fish migration and fish bypass channels, Vienna (Austria), 24-26 Sep 1996; Other Information: PBD: [1996]
Research Org:
Oak Ridge National Lab., TN (United States)
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
13 HYDRO ENERGY; HYDROELECTRIC POWER PLANTS; ENVIRONMENTAL IMPACTS; FISHES; MIGRATION; FISH PASSAGE FACILITIES; HABITAT; FISHERIES; RESOURCE MANAGEMENT