Rating:
4 votes

Liberty Bridge

Photos 

Photo taken by Jason Smith

Enlarge

BH Photo #187466

Map 

Street View 

Description 

This was the longest and most expensive bridge built in Allegheny County when it was completed in 1928. The bridge links Pittsburgh's downtown area with the Liberty Tunnels, built through Mt. Washington in 1924. The opening of the tunnels and the bridge were instrumental in the development of Pittsburgh's South Hills suburbs...

-- Historic American Engineering Record

Facts 

Overview
Deck truss bridge over Monongahela River, many city streets and I-376 on Liberty Bridge
Location
Pittsburgh, Allegheny County, Pennsylvania
Status
Open to traffic
History
Built 1928; rehabilitated 1983
Design
Riveted Warren deck truss bridge
Dimensions
Length of largest span: 470.2 ft.
Total length: 2,663.2 ft. (0.5 mi.)
Deck width: 56.1 ft.
Approximate latitude, longitude
+40.43256, -79.99614   (decimal degrees)
40°25'57" N, 79°59'46" W   (degrees°minutes'seconds")
Approximate UTM coordinates
17/585146/4476253 (zone/easting/northing)
Quadrangle map:
Pittsburgh East
Inventory numbers
PA 02 3069 0110 0135 (Pennsylvania Bridge Management System number)
PANBI 01808 (Pennsylvania BRKEY bridge number on the 2011 NBI)
BH 47035 (Bridgehunter.com ID)
Inspection (as of 04/2009)
Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 42.7 (out of 100)
Average daily traffic (as of 2007)
20,913

Update Log 

  • July 9, 2016: New photos from Royce and Bobette Haley
  • March 1, 2014: New Street View added by Dave King
  • March 24, 2012: HAER photos posted by Jason Smith
  • November 18, 2010: Added by Jason Smith

Related Bridges 

Sources 

  • Jason Smith - flensburg [dot] bridgehunter [dot] av [at] googlemail [dot] com
  • HAER PA-448 - Liberty Bridge, Spanning Monongahela River, East Carson Street & Second Avenue at State Route 3069, Pittsburgh, Allegheny County, PA
  • Historicbridges.org - by Nathan Holth
  • Historicbridges.org - by Nathan Holth
  • Bridgemapper.com - by Todd Wilson and Lauren Winkler
  • Dave King - DKinghawkfan [at] hotmail [dot] com
  • Royce and Bobette Haley - roycehaley111 [at] yahoo [dot] com

Comments 

Liberty Bridge
Posted September 2, 2016, by Clark Vance (cvance [at] dogmail [dot] com)