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The Colossus Bridge – also known as Fairmount Bridge, Colossus of Fairmount or Upper Ferry Bridge (and formally as the Lancaster Schuylkill Bridge) – was a record-setting timber bridge across the Schuylkill River near Philadelphia. It was built in 1812 by Louis Wernwag, and was considered his finest bridge design. It had a clear span of (contemporary US Record) and was the first long span bridge to use iron rods. The bridge was destroyed September 1, 1838, by fire. The bridge was succeeded by Charles Ellet, Jr.'s wire suspension bridge and then the Callowhill Street truss bridge. The modern bridge at this site is the Spring Garden Street Bridge. The bridge was located near . File:Fairmount Waterworks 1835 (cropped).jpg|"Schuylkill Waterworks" (1835), with "The Colossus" in the background. File:A View of Fairmount and the Waterworks by John Rubens Smith 1835.jpg|"A View of Fairmount and the Waterworks" (1835) by John Rubens Smith. File:AmCyc Bridge - Schuylkill Bridge.jpg|Diagram with section showing internals. ==References== 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「Colossus Bridge」の詳細全文を読む スポンサード リンク
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