Pelton Round Butte Hydroelectric Project

Columbia River Basin; Deschutes River, Jefferson County, Oregon

Project Profile

The Pelton Round Butte Hydroelectric Project blocked access to nearly 200 miles of steelhead and Chinook habitat, inundated about 35 miles of river habitat, and affected water quality for anadromous fish in the lower river. This 465-megawatt project consists of three developments: Round Butte, Pelton, and the Re-regulating facilities. The licensees collect juvenile salmonids at Round Butte Dam and move them to a point downstream of the Reregulating Dam. They collect returning adults at a trap below the Reregulating Dam, and either release them above Round Butte Dam or hold them at the Round Butte Hatchery.

Listed Species

Middle Columbia River steelhead


Portland General Electric Company and Confederated Tribes of the Warm Springs Reservation of Oregon

FERC Relicensing Status

The parties agreed to a settlement in 2004, NOAA Fisheries completed a biological opinion in 2005, and FERC issued a new federal license in 2005. These actions resulted in reintroduction of spring Chinook salmon and ESA-listed steelhead into historic habitat above the project. The licensees are actively collecting, marking and releasing juvenile steelhead and Chinook below the project, and are conducting studies and monitoring the reintroduction effort.


Federal Energy Regulatory Commission

FERC eLibrary: Docket #P-2030

NOAA Fisheries Biological Opinion

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