3 votes

Chicago Avenue Bridge


Counter Weight Trunion Rack And Pinion And Counterweight

Photo taken by Historic American Engineering Record

View photos at Library of Congress

BH Photo #118241


Street View 


Bascule bridge over North Branch Chicago River on Chicago Avenue in Chicago
Chicago, Cook County, Illinois
Open to traffic
Future prospects
Slated for demolition and replacement.
Built 1914
- Byrne Brothers Dredging & Engineering Co. of Chicago, Illinois
- Ketler-Elliot Erection Co. of Chicago, Illinois
Bascule Pony truss
Length of largest span: 188.9 ft.
Total length: 290.9 ft.
Deck width: 36.0 ft.
Approximate latitude, longitude
+41.89667, -87.64417   (decimal degrees)
41°53'48" N, 87°38'39" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/446565/4638503 (zone/easting/northing)
Quadrangle map:
Chicago Loop
Inventory numbers
IL 016-6008 (Illinois bridge number)
BH 15110 (Bridgehunter.com ID)
Inspection (as of 09/2011)
Deck condition rating: Poor (4 out of 9)
Superstructure condition rating: Serious (3 out of 9)
Substructure condition rating: Poor (4 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 4.0 (out of 100)
Average daily traffic (as of 2010)

Update Log 

  • November 23, 2015: New photos from Royce and Bobette Haley
  • September 12, 2013: New Street View added by Douglas Butler
  • September 1, 2013: Updated by Nathan Holth: This bridge is now doomed.
  • May 9, 2010: New photos from J.R. Manning
  • March 4, 2010: Updated by Robert Stephenson: Updated design type


  • HAER IL-144 - Chicago Avenue Bridge, Spanning North Branch of Chicago River at West Chicago Avenue, Chicago, Cook County, IL
  • James Baughn - webmaster [at] bridgehunter [dot] com
  • Robert Stephenson - seinfeld99 [at] yahoo [dot] com
  • J.R. Manning - thekitchenguy [at] sbcglobal [dot] net
  • Douglas Butler
  • Nathan Holth
  • Royce and Bobette Haley - roycehaley111 [at] yahoo [dot] com