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The truss configuration is the design patented by Bollman as the "Bollman suspension truss" in 1852. Each span is 79.5 feet (24.2 m) long, 25.5 feet (7.8 m) wide and about 21 feet (6.4 m) tall. The Bollman truss suspends the deck from a network of tension members, while the top chord resists compressive forces.
A steel Pratt truss and plate girder bridge was built in 1894 to carry the B&O Valley Line (now the CSX Shenandoah Subdivision) toward Winchester, Virginia, along the Shenandoah River. This was complemented in 1930–1931 with a deck plate girder bridge that carried the B&O Main Line (now the CSX Cumberland Subdivision) to Martinsburg, West ...
Boundary Map of the Union Mills Homestead Historic District, Carroll County, at Maryland Historical Trust Union Mills Homestead Historic American Engineering Record (HAER) No. md-170, " Bollman Truss Bridge, Union Mills Homestead Park, 3311 Littlestown Pike, Westminster, Carroll County, MD ", 1 photo, 1 photo caption page
Bollman Truss Bridge (abutments) [1] CSX: Harper's Ferry / Washington County Virginia / Maryland Sandy Hook Bridge: US 340: ... Bridge Route Location Coordinates
Location County Type ... Bollman Truss Bullfrog Road Bridge: 1908 ... Burr Arch Through Truss LeGore Bridge: 1898-1900 September 18, 1978: Woodsboro
Name Image Built Listed Location County Type Bridge in Athens Township: 1913 June 22, 1988 removed August 22, 2012: Athens: Bradford: Pennsylvania (petit) truss Highway Bridges Owned by the Commonwealth of Pennsylvania, Department of Transportation TR
[16] [17] The Thomas Viaduct at Relay, Maryland, was the longest bridge in the United States upon its completion in 1835. It also remains in use. The B&O made extensive use of the Bollman iron truss bridge design in the mid-19th century. Its durability and ease of assembly aided faster railroad construction.
The line's bridges cross: Tuscarora Creek. Originally a Bollman truss iron bridge, replaced with a girder bridge in 1904. Monocacy River. Originally a 700-foot-long (210 m) Bollman truss, replaced with a seven-span girder bridge in 1904. Little Monocacy River. Originally a 500-foot wood trestle, replaced by a 331-foot stone arch viaduct in 1906.