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Mansfield Covered Bridge : ウィキペディア英語版 | Mansfield Covered Bridge
The Mansfield Covered Bridge is a Double Burr Arch double span truss bridge located on Mansfield Rd. (historic) and Big Raccoon Creek in Mansfield southeast of Rockville in Parke County, Indiana. Built by Joseph J. Daniels in 1867 at a cost of $12,200. At 279 feet it is the longest covered bridge left in Parke County. 〔(【引用サイトリンク】title=Mansfield Covered Bridge )〕 ==History==
Built for a time where only wagons, horses and pedestrians whould have used the bridge the Mansfield Bridge has a 10-ton load limit. The bridge had been used for State Route 59 and in one recorded story, three loaded oil trucks approached the bridge together. The first truck stalled out just before leaving the bridge, and all three trucks came to a stop on the two spans. There was no apparent damage to the strong structure. The arches combined with the truss are able to support more weight than needed so the limit is in the decking and material used for it.〔 Mansfield Bridge was closed in 1980 for repair to the abutments, roof and decking. The roof and decks were replaced again in October of 1990 by the Parke County Highway Department.
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「Mansfield Covered Bridge」の詳細全文を読む
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