Rating:
1 vote

Washington Crossing Bridge

Share:

Photos 

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

View photos at Library of Congress

Map 

Street View 

Description 

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.

- HAER

Facts 

Overview
Three-span steel arch bridge over Allegheny River on Fortieth Street (Route 2124) in Pittsburgh
Location
Pittsburgh, Allegheny County, Pennsylvania
Status
Open to traffic
History
Built 1923-24
Builders
- All-Steel Equipment Co.
- Benno Janssen of St. Louis, Missouri
- Charles S. Davis
- H.P. Converse Co.
- McClintic-Marshall Co. of Chicago, Illinois & Pittsburgh, Pennsylvania
Design
Steel arch
Dimensions
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.
Recognition
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
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 (as of 05/2009)
Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 50.3 (out of 100)
Average daily traffic (as of 2010)
26,849

Update Log 

  • 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

Sources 

  • 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
  • Bridgemapper.com - by Todd Wilson and Lauren Winkler
  • Dave King - DKinghawkfan [at] hotmail [dot] com
  • HABS PA-1179 - Washington Crossing Bridge, Fortieth Street, Pittsburgh, Allegheny County, PA