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A covered bridge is a timber-truss bridge with a roof, decking, and siding, which in most covered bridges create an almost complete enclosure. [1] The purpose of the covering is to protect the wooden structural members from the weather.
Media related to Thomas Mill Covered Bridge at Wikimedia Commons; Historic American Buildings Survey (HABS) No. PA-19, "Covered Bridge, Thomas Mill Road (Spanning Wissahickon Creek), Philadelphia, Philadelphia County, PA", 2 photos, 1 color transparency, 2 measured drawings, 2 photo caption pages
The Brown truss enjoyed a brief period of favor in the 1860s, and is known to have been used in four covered bridges in Michigan, the Ada Covered Bridge, the Fallasburg Bridge, Whites Bridge and one other. The design did not appear to gain wide acceptance as modern bridges tend to be Howe, Pratt, bowstring or Warren trusses.
Covered bridges are timber-truss bridges with a roof and siding which, in most covered bridges, create an almost complete enclosure. [1]The purpose of the covering is to keep snow from accumulating—winter snow accumulation could easily collapse a bridge, and the steep roof would tend to shed snow to either side.
More than 100 pages use this file. The following list shows the first 100 pages that use this file only. A full list is available.. Andøy Bridge; Attap dwelling; Aursund Bridge
The bridge has remained despite the development of the surrounding countryside. Landis Mill Covered Bridge crosses the Little Conestoga Creek just a block west of Park City Mall. Built in 1873, this covered bridge uses the Kingpost Truss, no arch, and at only 53 feet long, it is the shortest covered bridge in Lancaster county.
The Barrackville Covered Bridge spans 145 feet (44 m) in a single span across Buffalo Creek near Barrackville, West Virginia. Built in 1853 by local bridge builder Lemuel Chenoweth , the structure is a modified arched Burr truss , with siding added twenty years after the bridge's construction.
Knecht's Covered Bridge is a historic covered bridge in Springfield Township, Bucks County, Pennsylvania. It crosses Cooks Creek on Knecht Bridge Road south of Springtown. Built in 1873 in the town truss style, the bridge is 110 feet long and 15 feet wide. [2] [3] It was added to the National Register of Historic Places on December 1, 1980. [1]
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