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Swiftwater Covered Bridge : ウィキペディア英語版 | Swiftwater Covered Bridge
The Swiftwater Covered Bridge is a historic covered bridge which carries Valley Road over the Wild Ammonoosuc River in Bath, New Hampshire. The bridge, the fourth on the site, was built in 1849, and is a locally distinctive single-span Paddleford truss design, with laminated arches and steel beam reinforcements added in the 20th century. The bridge has an overall length of 173'8" and two clear spans of 77'6" and 57'6". The roadbed is 14'6" wide, with a vertical clearance of 12'9". It rests on lightly-mortared split granite abutments topped with concrete footings. The roof is made of corrugated metal, and the sides are sheathed in vertical planking to a height of eight feet. The bridge is said to have survived the use of explosives to clear logjams in the area.〔(【引用サイトリンク】title=NRHP nomination for Swiftwater Covered Bridge )〕〔(【引用サイトリンク】title=Swiftwater Bridge )〕 The bridge was added to the National Register of Historic Places in 1976.〔 ==See also==
*List of New Hampshire covered bridges *List of bridges on the National Register of Historic Places in New Hampshire *National Register of Historic Places listings in Grafton County, New Hampshire
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「Swiftwater Covered Bridge」の詳細全文を読む
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