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CN - State Street Bridge


CN State Street Bridge


Photo taken by John Marvig in December 2018


BH Photo #441254


This bridge is in very poor condition, and even the recent shoring with wooden blocks has begun to fail. It is the stone abutments that are the worst failing component, though there are other deteriorated elements.


Pony/through plate girder bridge over State Street on Canadian National Railway
Chicago, Cook County, Illinois
Replaced by a new bridge
Built 1899; Replaced 2020-2021
- Detroit Bridge & Iron Works of Detroit, Michigan
- Amtrak (AMTK)
- Canadian National Railway (CN)
- Chicago & Western Indiana Railroad (CWI)
- Illinois Central Railroad (IC; ICG (1972-1988))
- St. Charles Air Line Railroad
Pony plate girder
Length of largest span: 65.0 ft.
Total length: 106.0 ft.
Approximate latitude, longitude
+41.86069, -87.62724   (decimal degrees)
41°51'38" N, 87°37'38" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/447939/4634498 (zone/easting/northing)
Inventory number
BH 83940 (Bridgehunter.com ID)

Update Log 

  • December 2, 2021: Updated by John Marvig: added builder
  • June 6, 2021: Updated by John Marvig: Replacement complete
  • April 14, 2019: Updated by Roger Deschner: Added photos, categories, description
  • January 6, 2019: New photos from John Marvig
  • December 31, 2018: Added by John Marvig

Related Bridges 



CN - State Street Bridge
Posted October 1, 2019, by John Marvig (marvigj27 [at] gmail [dot] com)


While not nearly as important today, when the St. Charles airline was built, it was a very important rail connection in Chicago. While these bridges are not overly significant on any scale, Iím glad we were able to document them for future generations, especially considering their significance to Chicago 100 years ago.

CN - State Street Bridge
Posted September 30, 2019, by Roger Deschner (rogerdeschner [at] gmail [dot] com)

Demolition of this bridge is underway now. I'm glad I was able to photograph it back in April.

State Street underneath it is closed to traffic until October 5, 2019. I have not heard how rail traffic is affected.

CN - State Street Bridge
Posted January 6, 2019, by John Marvig (marvigj27 [at] gmail [dot] com)

Not hard to see why these five bridges (Clark, Dearborn, State, Wabash, Michigan) will be replaced this year. The State Street bridge is probably in the worst immediately visible condition, with a massive sag in the west abutment. To counter this, temporary timber cribbing has been added under the girders, but is beginning to fail. All five bridges have advanced pier and deck deterioration, and most have had additional cribbing and bracing added.