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CB&Q - Fox River Bridge (Aurora)

Photos 

Photo taken by Steve Conro in October 2011

Enlarge

BH Photo #219131

Map 

Street View 

Facts 

Overview
Deck Girder Bridge over Fox River in Aurora on Abandoned Chicago, Burlington & Quincy Railroad
Location
Aurora, Kane County, Illinois
Status
Derelict/abandoned
History
Built 1900
Railroad
- Chicago, Burlington & Quincy Railroad (CBQ)
Design
Deck plate girder
Dimensions
Length of largest span: 80.0 ft.
Total length: 445.0 ft.
Approximate latitude, longitude
+41.75377, -88.32181   (decimal degrees)
41°45'14" N, 88°19'19" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/390108/4623282 (zone/easting/northing)
Quadrangle map:
Aurora North
Inventory number
BH 49963 (Bridgehunter.com ID)

Update Log 

  • October 22, 2015: Updated by John Marvig: Built 1900
  • August 18, 2015: Updated by John Marvig: to become a trail
  • July 17, 2014: New Street View added by Ralph Demars
  • March 6, 2012: Updated by Steve Conro: Added categories "Chicago, Burlington & Quincy Railroad", "Fox River (Illinois)"
  • October 30, 2011: Added by Steve Conro

Sources 

Comments 

CB&Q Fox River Bridge
Posted March 15, 2012, by Robert Thompson
CB&Q Fox River Bridge
Posted March 6, 2012, by Matt Lohry

I agree with Roberts assessment-it looks like the stone piers had about a foot of concrete added to the tops after the removal of the previous bridge (probably a large truss), and intermediate concrete piers designed for two side-by-side bridges were added. It looks like the second bridge was never added, though, as it appears that the concrete surfaces have anchor bolts installed, but are otherwise unscarred.

CB&Q Fox River Bridge
Posted March 6, 2012, by Robert Thompson (rkt [dot] engineering [at] gmail [dot] com)

There is a similar situation in Marinette WI / Menominee MI at a railroad bridge crossing the Menominee River - old stone piers, with newer concrete piers between them. I don't have any historical photos, but my guess is that the stone piers were built for an earlier truss bridge with longer spans. When the railroad upgraded the crossing to carry heavier loads, they opted for short plate girder spans with additional piers as a cheaper alternative.

CB&Q Fox River Bridge
Posted October 31, 2011, by Luke Harden (lmharden [at] iastate [dot] edu)

There may have been another girder bridge, but that line fell into disuse, and the railroad found another place where it could use the girders.

CB&Q Fox River Bridge
Posted October 31, 2011, by Clark Vance (cvance [at] dogmail [dot] com)

An interesting story suggested by the piers. It looks as if there are a couple of older stone piers. The concrete piers look wide enough for a larger bridge. This plate girder probably wasn't the original.