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33rd Street Railroad Bridge

Coordinates: 40°27′57″N 79°58′25″W / 40.4657°N 79.9736°W / 40.4657; -79.9736
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33rd Street Railroad Bridge
The downstream side of the 33rd Street Railroad Bridge.
Coordinates40°27′57″N 79°58′25″W / 40.4657°N 79.9736°W / 40.4657; -79.9736
CarriesAllegheny Valley Railroad (P&W Subdivision)
CrossesAllegheny River
LocalePittsburgh, Pennsylvania
Other name(s)B&O Railroad Bridge at 33rd Street and Herr's Island
DesignTruss bridge
Longest span400 feet (120 m)
Clearance below44.9 feet (13.7 m)

The 33rd Street Railroad Bridge is a truss bridge that carries the Allegheny Valley Railroad on the P&W Subdivision over the Allegheny River that connects downtown Pittsburgh, Pennsylvania to Herrs Island, Pittsburgh, United States.



The Allegheny River was first crossed at this point by a railroad bridge built in 1884[1] by the Iron City Bridge Works, which moved to Pittsburgh from Cincinnati in 1856.[2]

This was replaced by the B&O bridge in 1921.[3]

See also


List of crossings of the Allegheny River


  1. ^ "Baltimore and Ohio Magazine". 1920.
  2. ^ Cushing (1889). History of Allegheny County. Chicago: A. Warner Co.
  3. ^ "Bridges & Tunnels of Allegheny County and Pittsburgh, PA - 33rd street railroad bridge". August 31, 2001. Retrieved March 5, 2010.