- Clark Canyon Dam
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Coordinates: 45°00′00″N 112°51′25″W / 45°N 112.85694°W Clark Canyon Dam is an earthfill dam located in Beaverhead County, Montana, about 20 miles (30 km) south of the county seat of Dillon. The dam impounds the waters of the Beaverhead River, creating a body of water known as Clark Canyon Reservoir. The structure was constructed in 1961-1964 by the United States Bureau of Reclamation, to hold water for downstream irrigation and for flood-control purposes.
Clark Canyon Dam has a crest length of 2,950 feet (899 m), and a maximum height of 147 feet (45 m). The dam contains 1,970,000 cubic yards (1,510,000 m³) of material. The elevation of the dam crest is 5,578 feet (1,700 m). The reservoir has a total capacity of 257,152 acre feet (317,192,000 m3), and when full has a surface area of 5,903 acres (24 km²).
Construction of the dam and reservoir required the relocation of U.S. Route 91 (rebuilt as Interstate 15) and a main line of the Union Pacific Railroad. The reservoir inundated the former site of the small community of Armstead, Montana, and the site of Camp Fortunate, where the Lewis and Clark Expedition camped from August 17 to 22, 1805 and held negotiations with the Shoshone.[1]
References
- ^ Ambrose, S.E. (1996) Undaunted Courage ISBN 0-684-82697-6 p.277
External links
Main stem Fort Peck Dam · Garrison Dam · Oahe Dam · Big Bend Dam · Fort Randall Dam · Gavins Point Dam · Fort Peck Lake · Lake Sakakawea · Lake Oahe · Lake Sharpe · Lake Francis Case · Lewis and Clark LakeTributary dams Bear Creek Dam · Bowman-Haley Dam · Boysen Dam · Buffalo Bill Dam · Canyon Ferry Dam · Chatfield Dam · Cherry Creek Dam · Clark Canyon Dam · Coldbrook Dam · Cottonwood Dam · Glendo Dam · Heart Butte Dam · Jamestown Dam · Keyhole Dam · Pactola Dam · Papio Creek Dams · Pipestem Dam · Salt Creek Dams · Shadehill Dam · Tiber Dam (R) · Yellowtail DamState of Montana Helena (capital) Topics Index · History · Governors · People · Geography · State Government · Delegations · Visitor Attractions
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Categories:- Buildings and structures in Beaverhead County, Montana
- Dams in Montana
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