1 vote

Washington Crossing Bridge


Photo taken Summer 1997 by Joseph Elliott for the Historic American Engineering Record

View photos at Library of Congress

BH Photo #151338

Street View 


Significance: The bridge is an outstanding example of a long-span metal deck arch bridge. Its unique architectural details, forged in a successful collaboration between architects and engineers in the design and construction of the bridge, add to its significance. The bridge is also significant because its construction was the culmination of a conflict over Allegheny River bridge heights between the U.S. War Department and local governments.



Three-span steel arch bridge over Allegheny River on Fortieth Street (Route 2124) in Pittsburgh
Pittsburgh, Allegheny County, Pennsylvania
Open to traffic
Built 1923-24
- All-Steel Equipment Co.
- Benno Janssen of St. Louis, Missouri
- Charles S. Davis
- H.P. Converse Co. of Boston, Massachusetts
- McClintic-Marshall Co. of Chicago, Illinois & Pittsburgh, Pennsylvania
Steel arch
Length of largest span: 379.9 ft.
Total length: 2,364.0 ft. (0.4 mi.)
Deck width: 39.0 ft.
Vertical clearance above deck: 15.8 ft.
Posted to the National Register of Historic Places on June 22, 1988
Also called
Fortieth Street Bridge
Approximate latitude, longitude
+40.47350, -79.96969   (decimal degrees)
40°28'25" N, 79°58'11" W   (degrees°minutes'seconds")
Approximate UTM coordinates
17/587336/4480822 (zone/easting/northing)
Quadrangle map:
Pittsburgh East
Average daily traffic (as of 2017)
Inventory numbers
NRHP 88000820 (National Register of Historic Places reference number)
PA 02 2124 0010 0255 (Pennsylvania Bridge Management System number)
PANBI 01674 (Pennsylvania BRKEY bridge number on the 2011 NBI)
BH 30321 (Bridgehunter.com ID)
Inspection report (as of May 2017)
Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Deck condition rating: Good (7 out of 9)
Sufficiency rating: 48.3 (out of 100)
View more at BridgeReports.com

Update Log 

  • October 31, 2019: New photo from Geoff Hubbs
  • March 1, 2014: New Street View added by Dave King
  • October 29, 2010: New photos from Jason Smith
  • January 1, 2010: Posted HAER photos
  • September 11, 2006: Posted HAER photo


  • HAER PA-447 - Washington Crossing Bridge, Spanning Allegheny River at Fortieth Street (State Route 2124), Pittsburgh, Allegheny County, PA
  • Jason Smith - flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com
  • Todd Wilson
  • Dave King - DKinghawkfan [at] hotmail [dot] com
  • HABS PA-1179 - Washington Crossing Bridge, Fortieth Street, Pittsburgh, Allegheny County, PA
  • Geoff Hubbs