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With the 2011 destruction of the Old Blenheim Bridge, the Bridgeport Covered Bridge is the undisputed longest-span wooden covered bridge still surviving. Historically, the longest single-span covered bridge on record was Pennsylvania's McCall's Ferry Bridge with a claimed clear span of 360 feet (110 m) (built 1814–15, destroyed by ice jam 1817).
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.
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.
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 ...
Only bridge in the US using this design [6] Pisgah Community Covered Bridge [1] Randolph: Pisgah: ca. 1910: 51 feet (16 m) Upper branch of the Little River Private: Modified queen: Will Henry Stevens Covered Bridge [7]: 61 Macon: Highlands
The bridge housing included flared board-and-batten siding, arched portals, ribbon daylighting and wooden flooring; The bridge has long been closed to vehicular traffic but served pedestrian traffic up until quite recently when the approaches were removed; delisted from the NRHP; by tradition the oldest covered span in Oregon, thought its ...
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The bridge is covered by a metal roof, which extends on the east side over a walkway on the outside of the eastern truss. The bridge was built in 1833, and is at least the second-oldest covered bridge (after only the Pulp Mill Covered Bridge, which may have been built at a later date). It is also the state's longest single-span Burr truss bridge.