The 33rd Street Railroad Bridge is a

truss bridge A truss bridge is a bridge whose load-bearing superstructure is composed of a truss, a structure of connected elements, usually forming triangular units. The connected elements, typically straight, may be stressed from tension, compression, or ...

that carries the Allegheny Valley Railroad on the P&W Subdivision over the

Allegheny River The Allegheny River ( ; ; ) is a tributary of the Ohio River that is located in western Pennsylvania and New York (state), New York in the United States. It runs from its headwaters just below the middle of Pennsylvania's northern border, nor ...

that connects downtown

Pittsburgh Pittsburgh ( ) is a city in Allegheny County, Pennsylvania, United States, and its county seat. It is the List of municipalities in Pennsylvania#Municipalities, second-most populous city in Pennsylvania (after Philadelphia) and the List of Un ...

Pennsylvania Pennsylvania, officially the Commonwealth of Pennsylvania, is a U.S. state, state spanning the Mid-Atlantic (United States), Mid-Atlantic, Northeastern United States, Northeastern, Appalachian, and Great Lakes region, Great Lakes regions o ...

to Herrs Island, Pittsburgh, United States.

History

The

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

References

{{Authority control Railroad bridges in Pennsylvania Bridges in Pittsburgh Bridges over the Allegheny River Former CSX Transportation bridges Baltimore and Ohio Railroad bridges Bridges completed in 1921 1921 establishments in Pennsylvania Steel bridges in the United States

History

See also

References