Canyon Ferry Dam
Template:Short description Script error: No such module "Type in location".Script error: No such module "Infobox".Template:Template otherScript error: No such module "Check for unknown parameters".Expression error: Unexpected < operator. Canyon Ferry Dam is a concrete gravity dam in a narrow valley of the Missouri River, United States, where the Big Belt Mountains and the Spokane Hills merge, approximately Script error: No such module "convert". downstream from the confluence of the Gallatin, Madison, and Jefferson rivers, and about Script error: No such module "convert". east of the city of Helena, Montana. The dam is for flood control, irrigation, recreation and hydroelectric power. The building of the dam created a reservoir known as Canyon Ferry Lake.
Background
In 1941, the first study for the dam was carried out by the Bureau of Reclamation, the Montana Water Board and Montana Power Company. The dam and power plant were part of the Pick-Sloan Plan and approved by the Flood Control Act of 1944 which was signed on December 22. Known as the Canyon Ferry Unit, construction began on May 24, 1949, and was completed on June 23, 1954. On December 18, 1953, the power plant's first generator became operational and the other two went online in 1954.[1]
The 1949 structure replaced the original Canyon Ferry Dam Script error: No such module "convert". upstream. The original dam was constructed between 1896 and 1898 by the Helena Water and Electric Power Company. It was a timber crib dam with rock-fill and was Script error: No such module "convert". high and Script error: No such module "convert". long.[2]
Design
The dam is a Script error: No such module "convert". tall concrete gravity type and has a length of Script error: No such module "convert".. The crest of the dam is Script error: No such module "convert". while the base is Script error: No such module "convert".. The dam structure compromises a total of Script error: No such module "convert". of concrete. The dam's spillway is located on its central portion and is controlled by four radial gates. It has a maximum discharge of Script error: No such module "convert".. Adjacent to the spillway is the dam's power plant which contains three 16.5 MW Francis turbine generators for an installed capacity of 50 MW. Each turbine is fed with water by a Script error: No such module "convert". diameter penstock. At a normal elevation of Script error: No such module "convert"., the reservoir contains Script error: No such module "convert". of water.[1]
References
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External links
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- U.S. Reclamation website: Canyon Ferry Unit
- Canyon Ferry Dam and Visiting Center website
- Helena History website
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- Pages with script errors
- Pages with broken file links
- Dams in Montana
- Buildings and structures in Lewis and Clark County, Montana
- Hydroelectric power plants in Montana
- Gravity dams
- United States Bureau of Reclamation dams
- Energy infrastructure completed in 1954
- Dams completed in 1954
- Dams on the Missouri River
- 1954 establishments in Montana