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Buffalo Bill Dam
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Buffalo Bill Dam is a concrete arch-gravity dam on the Shoshone River in the U.S. state of Wyoming. It is named after the famous Wild West figure William "Buffalo Bill" Cody, who founded the nearby town of Cody and owned much of the land now covered by the reservoir formed by its construction. The dam is part of the Shoshone Project, successor to several visionary schemes promoted by Cody to irrigate the Bighorn Basin and turn it from a semi-arid sagebrush-covered plain to productive agricultural land.〔(【引用サイトリンク】url=http://www.usbr.gov/projects/Facility.jsp?fac_Name=Buffalo%20Bill%20Dam )〕 Known at the time of its construction as Shoshone Dam, it was renamed in 1946 to honor Cody.〔(【引用サイトリンク】url=http://www.usbr.gov/projects/Project.jsp?proj_Name=Shoshone%20Project&pageType=ProjectHistoryPage )〕
The high structure was designed by engineer Daniel Webster Cole〔(【引用サイトリンク】url=http://www.bbdvc.com/Buffalo_Bill_Dam_History.php )〕 and built between 1905 and 1910. At the time of its completion it was the tallest dam in the world.〔 It was listed on the National Register of Historic Places in 1971〔 and named a National Civil Engineering Landmark in 1973.〔(【引用サイトリンク】url=http://www.asce.org/landmarksearch.aspx?id=9310#results )〕 The land around the reservoir is maintained as Buffalo Bill State Park.
==Description==
The dam is a concrete arch-gravity dam, wide at the base and wide at the crest, with an original height of . The concrete structure measures deep at the base, tapering to at the crest, with a volume of of concrete.〔(【引用サイトリンク】url=http://www.usbr.gov/projects/Facility.jsp?fac_Name=Buffalo+Bill+Dam&groupName=Dimensions )〕 It is anchored into Pre-Cambrian granitic rock on either side. The spillway is an uncontrolled overflow weir on the south side, wide, dropping through a tunnel in the left abutment.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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