Hydroelectric Projects
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Rock Island: Columbia River, WA
The Rock Island Hydroelectric Project is located near the geographical center of Washington state on the Columbia River. Development began in January, 1930; four generating units were operational in 1933. Six additional generating units were added to the…
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Rocky Reach: Columbia River, WA
The Rocky Reach Project is located in mid-Washington state on the Columbia River, about seven miles upstream from the city of Wenatchee. By river, the dam is 215 miles below the Canadian border and 473 miles above the…
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Roza: Yakima River, WA
Roza Diversion Dam, located 10 miles north of Yakima, diverts water from the Yakima River. The dam is a concrete weir, movable crest structure, 486 feet long at the crest, 67 feet high, and contains 21,700 cubic yards of concrete.
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