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Roosevelt Dam

(Encyclopedia)Roosevelt Dam: see Salt River valley. ...

Ross Dam

(Encyclopedia)Ross Dam, Wash.: see Skagit, river. ...

Elephant Butte Dam

(Encyclopedia)Elephant Butte Dam, main unit of the Rio Grande project of the U.S. Bureau of Reclamation on the Rio Grande, SW N.Mex.; completed 1916. The dam, with its large reservoir, is used for flood control, hy...

Hungry Horse Dam

(Encyclopedia)Hungry Horse Dam, 564 ft (172 m) high and 2,115 ft (645 m) long, NW Mont. on the southern fork of the Flathead River. A major unit in the development program for the Columbia River basin, it was built...

Grand Coulee Dam

(Encyclopedia)Grand Coulee Dam ko͞oˈlē [key], 550 ft (168 m) high and 4,173 ft (1,272 m) long, on the Columbia ...

Glen Canyon Dam

(Encyclopedia)Glen Canyon Dam, 710 ft (216 m) high, 1,560 ft (475 m) long, NE Ariz., on the Colorado River. The key unit of the U.S. Bureau of Reclamation's Colorado River storage project, it is one of the world's ...

Grand River Dam

(Encyclopedia)Grand River Dam: see Pensacola Dam. ...

Fort Peck Dam

(Encyclopedia)Fort Peck Dam, 21,430 ft (6,531 m) long and 250 ft (76 m) high, on the Missouri River, NE Mont.; one of the world's largest earth-filled dams. The dam was built (1933–40) by the U.S. Army Corps of E...

Flaming Gorge Dam

(Encyclopedia)Flaming Gorge Dam, in a deep canyon of the Green River, NE Utah; built 1958–63 by the U.S. Bureau of Reclamation as a major unit in the Colorado River storage project. The dam regulates the flow of ...

John Day Dam

(Encyclopedia)John Day Dam, 219 ft (67 m) high and 5,640 ft (1,719 m) long, on the Columbia River between Oregon and Wash.; built between 1959 and 1968 by the U.S. Army Corps of Engineers. It is an extremely large ...