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Great Falls Dam (Tennessee) : ウィキペディア英語版 | Great Falls Dam (Tennessee)
Great Falls Dam is a hydroelectric dam on the Caney Fork, straddling the county line between White County and Warren County in the U.S. state of Tennessee. It is the only dam outside the Tennessee River watershed owned and operated by the Tennessee Valley Authority. The dam impounds the Great Falls Lake, and its tailwaters feed into Center Hill Lake.〔Tennessee Valley Authority, (Great Falls Reservoir ). Retrieved: 29 January 2009.〕 The completion of Great Falls Dam in 1917 was an engineering triumph, marking the first successful attempt to impound the volatile and flood-prone Caney Fork. The dam is also notable for its design, utilizing a mostly underground conduit to carry water from the reservoir via a tributary to the Power House downstream from the dam.〔Tennessee Valley Authority, ''Design of TVA Projects Volume 3: Mechanical Design of Hydro Plants'', Technical Report No. 24 (Washington, D.C.: Tennessee Valley Authority, 1952), pp. 301-302.〕〔Distance measured from and 〕 Great Falls Dam is named for the rapids and waterfalls on the Caney Fork downstream from the dam. The section of river below the Power House is world-renowned for whitewater kayaking. The dam and its tailwaters are surrounded by Rock Island State Park.〔 ==Location==
Great Falls Dam is located approximately above the mouth of the Caney Fork, immediately downstream from the Caney Fork's confluence with the Collins River. The confluence of these two rivers (the Collins flowing from the southwest and the Caney Fork from the east) creates a peninsula. The two rivers nearly meet at the ''Narrows'', a "land bridge" connecting the peninsula to the mainland. Two tunnels deliver water from the Collins River section of the Great Falls Reservoir to the dam's powerhouse located on the Caney Fork downstream from the dam. Great Falls Reservoir stretches behind the dam for along the Caney Fork and for roughly along the lower Collins River. The lake also includes a small stretch of the lower Rocky River, which empties into the Caney Fork about a mile east of the dam.
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