4 votes

Chicago & Alton Railroad Bridge


General View Of Bridge, Looking North; At The Top Of The Photograph Are The Steel Stringers Of The I-55 Bridge Crossing The South Fork Of The South Branch Of The Chicago River

Photo taken for the Historic American Engineering Record

View photos at Library of Congress

BH Photo #222901


Street View 


The Chicago & Alton Railroad bridge was the first Page bascule erected for railroad use. Patented by John W. Page, a Chicago engineer, the Page bascule was not as extensively built as other patented systems such as the Strauss-Trunnion bascule. This Chicago & Alton bridge may be the only one of its kind in existence.

-- Historic American Engineering Record

With the demolition of the Hohman Avenue Railroad Bridge http://bridgehunter.com/in/lake/bh51551/ by illegal scrappers in 2015, this bridge is now the last of its kind.


Moveable warren through truss with no verticals bridge over Bubbly Creek (South Fork of South Branch of Chicago River) on Chicago & Alton Railroad
Chicago, Cook County, Illinois
Open to traffic
Built 1906
- American Bridge Co. of New York (Superstructure)
- Kelly-Atkinson Construction Co. of Chicago, Illinois (Substructure)
- Page & Schnable of Chicago, Illinois
- William M. Hughes of Chicago, Illinois (Designer)
- Amtrak (AMTK)
- Canadian National Railway (CN)
- Chicago & Alton Railroad (C&A)
- Metra (METX)
Warren through truss with no verticals
Also called
C&A - South Fork South Branch Chicago River Bridge
CN - South Fork South Branch Chicago River Bridge
Approximate latitude, longitude
+41.84002, -87.66442   (decimal degrees)
41°50'24" N, 87°39'52" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/444836/4632227 (zone/easting/northing)
Quadrangle map:
Inventory number
BH 50841 (Bridgehunter.com ID)

Update Log 

  • May 6, 2017: New Street View added by Douglas Butler
  • April 13, 2017: New photos from Dave King
  • February 15, 2016: Updated by Roger Deschner: Added category "Metra"
  • January 26, 2016: New photo from Douglas Butler
  • December 31, 2015: Updated by Roger Deschner: Added categories "Amtrak", "Last of its kind"
  • November 30, 2015: New Street View added by Douglas Butler
  • January 6, 2012: Updated by J.P.: Added categories "Chicago & Alton Railroad", "HAER documented", "Navigable waterway", "Riveted"


  • J.P. - wildcatjon2000 [at] gmail [dot] com
  • HAER IL-104 - Chicago & Alton Railroad Bridge, Spanning South Branch of Chicago River, Chicago, Cook County, IL
  • Historicbridges.org - by Nathan Holth
  • Douglas Butler
  • Forgotten Chicago - Bridgeport's Chicago & Alton Railroad Bridge
  • Dave King - DKinghawkfan [at] hotmail [dot] com