33rd Street Railroad Bridge

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33rd Street Railroad Bridge
33rd St. RR Bridge.JPG
The downstream side of the 33rd Street Railroad Bridge.
Other name(s) B&O Railroad Bridge at 33rd Street and Herr's Island
Carries Allegheny Valley Railroad (P&W Subdivision)
Crosses Allegheny River
Locale Pittsburgh, Pennsylvania
Design Truss bridge
Material steel
Longest span 400 feet (120 m)
Clearance below 44.9 feet (13.7 m)
Opened 1921
Coordinates 40°27′57″N 79°58′25″W / 40.4657°N 79.9736°W / 40.4657; -79.9736Coordinates: 40°27′57″N 79°58′25″W / 40.4657°N 79.9736°W / 40.4657; -79.9736

The 33rd Street Railroad Bridge is a truss bridge that carries the Allegheny Valley Railroad on the P&W Subdivision over the Allegheny River in downtown Pittsburgh, Pennsylvania, USA.


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

This was replaced by the B&O bridge in 1921.[2]

See also[edit]

List of crossings of the Allegheny River


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