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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.
Name Image County Location Built Length Crosses Ownership Truss Notes Ashland Covered Bridge [1]: New Castle: Ashland: ca. 1860: 52 feet (16 m) Red Clay Creek
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.
A report by the U.S. Department of the Interior states that the Bridgeport Covered Bridge (HAER No. CA-41) has clear spans of 210 feet (64 m) on one side and 208 feet (63 m) on the other, while Blenheim Bridge (HAER No. NY-331) had a documented clear span of 210 feet (64 m) in the middle (1936 HABS drawings). In August 2003, measurements of ...
This 86.5-foot-long (26.4 m), 18.66-foot-wide (5.69 m), Howe truss bridge was built in 1855. It was renovated by the Works Progress Administration in 1939, and by the city of Philadelphia in 2000. [2] It is the only remaining covered bridge in Philadelphia and is the only covered bridge in a major US city.
Langley Covered Bridge, built in 1877, straddles the St. Joseph River and is the longest covered bridge in the state. It was originally projected to re-open by Dec. 25.
This list of Oregon covered bridges contains the 51 historic covered bridges remaining in the U.S. state of Oregon. Most covered bridges in Oregon were built between 1905 and 1925. At the height of their use, there were an estimated 450 covered bridges in Oregon, which had dwindled to 56 by 1977. [1] As of 2021, there were only 49 remaining.
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