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The Fort Randall Dam is an earth embankment dam impounding the Missouri River in South Dakota, United States and forming Lake Francis Case. It is one of six Missouri River dams, four being located in South Dakota. The dam was authorized by the Flood Control Act of 1944 and plays a key role in the Pick-Sloan Plan for development of water resources in the Missouri River basin. The Corps of Engineers began construction of Fort Randall Dam in 1946, and it was the first Pick-Sloan dam completed by the Omaha District. President Dwight D. Eisenhower threw the switch that started the first power generating unit in 1954. When completed in 1956, Fort Randall Dam and the Lake Francis Case Project cost approximately $200 million. The eight generating units of the Fort Randall Dam are capable of generating 40 megawatts of electricity each, with an annual production of 1.727 billion kilowatt hours. The combined maximum capacity of 320 megawatts is enough to supply 245,000 households, according to the Corps of Engineers. The river behind the dam drains an area of 263,480 mi² (682,410 km²). Its reservoir, Lake Francis Case, has a surface area of at maximum operating pool, coinciding with a volume of . The Fort Randall Dam is located in southeast South Dakota within sight of its namesake Fort Randall at (GNIS); by Pickstown, South Dakota on the east bank of the river; west of Wagner, South Dakota, and northeast of Spencer, Nebraska, on US 18/US 281. In June 2011, in response to the 2011 Missouri River Floods, the dam was releasing over , which greatly exceeded its previous record release of set in 1997. ==Visitor Center== The Fort Randall Visitor Center is located on the western edge of Pickstown, South Dakota along U.S. Highway 281 and 18.〔(【引用サイトリンク】url=http://www.nwo.usace.army.mil/Missions/DamandLakeProjects/MissouriRiverDams/FortRandall.aspx )〕 Open from Memorial Day through Labor Day, the visitor center offers a view of Fort Randall Dam, Lake Francis Case and the Missouri River. Exhibits highlight the dam's construction, area natural and cultural history and paleontology. There is also a freshwater aquarium with fish species found in the Missouri River. 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「Fort Randall Dam」の詳細全文を読む スポンサード リンク
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