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Pacific Northwest National Laboratory's culvert test bed holds full-scale models of culvert systems. Scientists can change the culvert's water flow and slope settings to measure hydraulic conditions that may affect juvenile salmon. The test bed facility is located at the Washington Department of Fish and Wildlife Skookumchuck Hatchery near Tenino, Washington.

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Document Title: Culvert Technology
Category: Environmental Remediation, Marine Science, Wildlife and Environmental Studies
Media Type: Photos
Date of Image/Photo: March 2002
Background: Roadway culverts present a major obstacle to juvenile salmon trying to reach prime habitat. To find more fish friendly designs, the Washington State Department of Transportation, representing a consortium of West Coast transportation agencies, engaged PNNL to create a full-scale culvert test bed. The one-of-a-kind facility is providing scientifically sound information for use in improving designs for new and retrofitted culverts in the Northwest and elsewhere. Test bed experiments measure water conditions under hundreds of slope and flow situations, and quickly relate these measures to fish-passage success at all life stages. According to U.S. Representative Norm Dicks, ?Decisions made based on research at this facility will benefit us for decades to come.?
URL of this page: http://picturethis.pnl.gov/picturet.nsf/by+id/AMER-5UAPR7

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