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The upper and lower reservoirs are created by earth and rock-filled embankment dams.The upper reservoir dam is 460 feet (140 m) high, 2,200 feet (670 m) long and has a structural volume of 18,000,000 cubic yards (14,000,000 m 3).
The Bedford Hydropower Project (Snowden) is a hydroelectric generation facility on the James River near the community of Big Island, Virginia.The project includes a low head structure completely spanning the river; river flow is split into a concrete canal leading to the hydroelectric generation facility and the natural river course.
Bosher's Dam is a historic low head dam (also called a weir) built upon the James River just west of Richmond, Virginia.It is a 12-foot-high stone structure which interrupts the natural flow of Virginia's largest self-contained river by spanning the waterway between suburban Tuckahoe in Henrico County and the western part of Richmond just west of the Edward E. Willey Bridge.
The dam produces hydro-electric power mostly during hours of peak demand on the American Electric Power system. Water passes from Smith Mountain Lake through generators to Leesville Lake, producing power. In times of low demand, the generators are used as pumps to reverse the flow and return the water to Smith Mountain Lake.
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The dam serves flood control and recreational purposes and is operated by the U.S. Army Corps of Engineers. [2] The Gathright Dam's intake tower contains nine portals that allow it to release water between reservoir depths of 12 to 87 feet (3.7 to 26.5 m). This allows the dam to manage the temperature and flow of water released downstream. [3]
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The project was constructed and began generating electric power in 1930 at the site of a former dam constructed in the 1820's and reconstructed in the 1850's known as Cushaw Falls Dam. [2] The Cushaw Project consists of a 1,550-foot-long, 27-foot-high reinforced concrete dam, with a 1,500-foot-long spillway extending diagonally across the James ...