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CN - Dearborn Street Bridge

Cook County, Illinois

Photos 

CN Dearborn Street Bridge

Overview

Photo taken by John Marvig in December 2018

Enlarge

BH Photo #441302

Map 

Description 

Badly deteriorated bridge over Dearborn Street on St. Charles Air Line. Shoring to supplement bent posts, and for deteriorating stone abutments, appears to be inadequate. Construction to replace this bridge is underway now, closing Dearborn Street and the east pedestrian walkway. The west pedestrian walkway, under the west approach span, remains open.

Facts 

Overview
Pony/through plate girder bridge over Dearborn Street on Canadian National Railway
Location
Chicago, Cook County, Illinois
Status
Open to train traffic on top; Dearborn Street closed underneath
Future prospects
To be replaced 2019. Construction is underway.
History
Built 1899
Railroads
- Amtrak (AMTK)
- Canadian National Railway (CN)
- Chicago & Western Indiana Railroad (CWI)
- Illinois Central Railroad (IC; ICG (1972-1988))
- St. Charles Air Line Railroad
Design
Pony plate girder
Dimensions
Length of largest span: 40.0 ft.
Total length: 72.0 ft.
Approximate latitude, longitude
+41.86067, -87.62881   (decimal degrees)
41°51'38" N, 87°37'44" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/447809/4634498 (zone/easting/northing)
Inventory number
BH 83938 (Bridgehunter.com ID)

Categories 

19th Century (7,631)
Amtrak (536)
Built 1899 (400)
Built during 1890s (2,996)
Canadian National Railway (518)
Chicago & Western Indiana Railroad (14)
Chicago, Illinois (334)
Cook County, Illinois (461)
Deck girder (5,778)
Doomed (1,091)
Girder (10,301)
 Illinois (4,687)
Illinois Central Railroad (588)
Open (39,986)
Owned by railroad (12,504)
Plate girder (7,985)
Railroad (15,607)
Span length 25-50 feet (15,711)
St. Charles Air Line Railroad (9)
Through girder (3,843)
Total length 50-75 feet (9,318)

Update Log 

  • April 14, 2019: Updated by Roger Deschner: New photos, description, categories
  • January 6, 2019: New photos from John Marvig
  • December 31, 2018: Added by John Marvig

Sources 

  • John Marvig - marvigj27 [at] gmail [dot] com
  • Roger Deschner - rogerdeschner [at] gmail [dot] com

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