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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Bosher Dam ： ウィキペディア英語版 Bosher Dam Bosher Dam is a historic but unnatural feature in the James River just west of Richmond, Virginia. A lowhead dam, also called a weir, is what paddlers ruefully call a "drowning machine," this 12-foot-high stone structure 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. ==History== The structure dates to 1835 at the location of an earlier dam designed to catch fish between slats. The current iteration was part of construction of the James River and Kanawha Canal, a major 19th Century transportation project whose emphasis in 1835 was getting boat traffic around the Falls of the James, the boulder-strewn whitewater that blocked river transport for at least ten miles around Richmond. The dam may have provided power for nearby gristmills and provided sufficient water depth to the Canal flowing on what eventually became a 22-mile pathway as it weaves above the north shore of the James around the Falls. 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「Bosher Dam」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.