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Chicago Avenue Bridge

Cook County, Illinois
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Photos 

Counter Weight Trunion Rack And Pinion And Counterweight

Photo taken by Historic American Engineering Record

View photos at Library of Congress

Map 

View Uglybridges.com report

Facts 

Overview
Bascule bridge over North Branch Chicago River on Chicago Avenue in Chicago
Location
Chicago, Cook County, Illinois
Status
Open to traffic
History
Built 1914
Builders
- Byrne Brothers Dredging & Engineering Co.
- Ketler & Elliot Co.
Design
Bascule Pony truss
Dimensions
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)
USGS topographic 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)
22,600

Categories 

Bascule (559)
Built 1914 (532)
Built during 1910s (6,729)
Byrne Brothers Dredging & Engineering Co. (1)
Chicago River Movable Bridges (42)
Chicago, Illinois (98)
Cook County, Illinois (167)
HAER documented (781)
Illinois (2,499)
 Ketler & Elliot Co. (8)
Movable (1,355)
Navigable waterway (1,448)
Open (28,304)
Owned by city (3,048)
Span length 175-250 feet (1,483)
Structurally deficient (16,677)
Total length 250-500 feet (3,371)

Update Log 

  • May 9, 2010: New photos from J.R. Manning
  • March 4, 2010: Updated by Robert Stephenson: Updated design type

Sources 

  • 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

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