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Smith Mountain Dam is a concrete arch dam located on the Roanoke River in Virginia, creating Smith Mountain Lake. The dam was built by Appalachian Power (a division of American Electric Power) between 1960 and 1963 for the purposes of hydroelectricity via pumped-storage hydroelectricity. The dam created Smith Mountain Lake as its reservoir, where recreation and real estate have become popular.〔(Smith Mountain Lake in Virginia )〕〔(Smith Mountain Lake: How it Works )〕 ==History== In the late 1920s, Appalachian Power began purchasing land and planning for a hydroelectricity dam within the Smith Mountain Gorge that is split by the Roanoke River. After several delays and the completion of engineering studies, construction began in 1960. Construction on the smaller Leesville Dam also began downstream at this time as well. Concrete pouring began in 1961 and in 1962, the re-construction of roads and bridges that would be affected by the reservoir was complete. Filling of the reservoir, Smith Mountain Lake, began on September 24, 1963. In 1964, the first four hydro-electrical generators were installed. The first commercial saturation dives were performed by Westinghouse to replace faulty trash racks at on the dam in 1965. On March 7, 1966, the reservoir was full. In 1979, a fifth hydro-electrical generator was installed, increasing the generation capacity to .〔(【引用サイトリンク】url=http://www.industcards.com/ps-usa.htm )〕〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Smith Mountain Dam」の詳細全文を読む スポンサード リンク
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