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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 East Bloomsburg Bridge ： ウィキペディア英語版 East Bloomsburg Bridge The East Bloomsburg Bridge was a bridge in Bloomsburg, Pennsylvania, in the United States. It carried the traffic of Pennsylvania Route 487,〔 which is known as Ferry Road at that point.〔 The bridge crossed the Susquehanna River. It was built in 1894 and torn down in 1987. The East Bloomsburg Bridge is on the Historic American Engineering Record and the Historic American Buildings Survey, as of 1992. == Description == The East Bloomsburg Bridge was long. Prior to its demolition and reconstruction, the bridge was made up of six pin-connected through-truss spans. Each of these spans is long. Each of the spans consisted of ten panels that were each long. The panels were made of wrought iron and steel. The pins on the bridge were made of steel. The floor of the bridge was made of 2.5-inch (6 centimeter) oak. The original design of the bridge was such that it could support a static load of per linear foot and a rolling load of per linear foot. The bridge's original weight limit was 13 tons, but this was later decreased to 10 tons.〔 Shortly before its demolition, the bridge had two lanes of . It had a clearance of at the beginning of the bridge and at the center.〔 The East Bloomsburg Bridge crosses the Susquehanna River between Bloomsburg and Catawissa Township.〔 The bridge is located in the U.S.G.S. Catawissa Quadrangle.〔 The East Bloomsburg Bridge was constructed with Pennsylvania-style trusses, also known as Petit trusses. These were based on a Pratt truss, but had several modifications. These included converting the top chord to a polygonal shape and dividing and deepening the panels.〔 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「East Bloomsburg Bridge」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.