Round Butte Dam

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Round Butte Dam
Location Jefferson County, Oregon, USA
Coordinates 44°36′11″N 121°16′40″W / 44.60306°N 121.27778°W / 44.60306; -121.27778Coordinates: 44°36′11″N 121°16′40″W / 44.60306°N 121.27778°W / 44.60306; -121.27778[1]
Opening date 1964[2]
Construction cost $62 million
Operator(s) Portland General Electric Co[2]
Dam and spillways
Impounds Deschutes River
Height 440 feet (130 m)[2]
Length 1,450 feet (442 m)[2]
Width (base) 1,570 feet (480 m)
Reservoir
Creates Lake Billy Chinook
Total capacity 535,000 acre feet (0.660 km3)[2]
Catchment area 7,514 square miles (19,500 km2)[2]
Surface area 4,000 acres (16.2 km2)[2]
Power station
Installed capacity 367 MW

Round Butte Dam is a rockfill-type hydroelectric dam on the Deschutes River, in the U.S. state of Oregon.

Located in Jefferson County and owned by the power company Portland General Electric, its reservoir is called Lake Billy Chinook.

The dam was completed in 1965 after three years of construction. More than 10 million tons of earth-fill were used to create this 440-foot tall, 1,320-foot wide, and 1,570-foot thick at the base storage dam.[3]

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