Bessemer and Lake Erie Railroad Bridge (Allegheny River)
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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.[citation needed] The original north trestle approach was buried in slag dumped from an adjacent temporary filling trestle.[2]
Bessemer & Lake Erie Railroad Bridge | |
|---|---|
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| Coordinates | 40°32′15″N 79°49′15″W / 40.5376°N 79.8209°W |
| Carries | Canadian National Railway Bessemer and Lake Erie Railroad division |
| Crosses | Allegheny River |
| Locale | Plum, Pennsylvania and Harmar Township, Pennsylvania |
| Characteristics | |
| Design | Truss bridge |
| Total length | 2,327 feet (709 m) |
| Longest span | 520 feet (160 m)[1] |
| Clearance below | 89 feet (27 m) |
| History | |
| Opened | 1918 |
| Location | |
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See also
editReferences
edit- ^ Movable and Long-Span Steel Bridges 1943
- ^ 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.
External links
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Wikimedia Commons has media related to Bessemer and Lake Erie Railroad Bridge.
- Historic American Engineering Record (HAER) No. PA-508, "Bessemer & Lake Erie Railroad, Allegheny River Bridge, Spanning Allegheny River, East of Pennsylvania Turnpike (I-76), Oakmont, Allegheny County, PA", 9 photos, 2 color transparencies, 5 data pages, 2 photo caption pages