Bessemer & Lake Erie Railroad Bridge

The Bessemer & Lake Erie Railroad Bridge is a truss bridge that carries the Canadian National Railway's Bessemer and Lake Erie Railroad division across the Allegheny River between the Pittsburgh suburbs of Plum and Harmar Township, Pennsylvania. In 1897, a single-track trestle and viaduct was built on this site; in 1918, the original piers were doubled in width, the current double-tracked structure built alongside, and then slid into place.[2] The original north trestle approach was buried in slag dumped from an adjacent temporary filling trestle.[3]

Bessemer & Lake Erie Railroad Bridge
Coordinates40.5376°N 79.8209°W / 40.5376; -79.8209
CarriesCanadian National Railway Bessemer and Lake Erie Railroad division
CrossesAllegheny River
LocalePlum, Pennsylvania and Harmar Township, Pennsylvania
Characteristics
DesignTruss bridge
Total length2,327 feet (709 m)
Longest span520 feet (160 m)[1]
Clearance below89 feet (27 m)
History
Opened1918
Location

See also

References
  1. Movable and Long-Span Steel Bridges 1943
  2. "PGHBridges.com - Bessemer and Lake Erie RR Bridge". March 21, 2003. Retrieved 1 February 2010.
  3. Spivey, Justin M. (April 2000). "Bessemer & Lake Erie Railroad, Allegheny River Bridge" (PDF). Historic American Engineering Record. Washington, D.C.: Library of Congress. p. 3. Archived from the original (PDF) on February 3, 2014. Retrieved February 1, 2014.
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