Photos
 |
Overview Photo taken by Bill Burmaster |
 |
view looking east Photo taken by Kim Harvey in September 2009 |
Facts
- Overview
- Cable-stayed bridge over I-70 on Fairmont Lane in Collinsville
- Location
- Madison County, Illinois
- Status
- Open to traffic
- History
- Built 1960; rehabilitated 1984
- Design
- Cable-stayed
- Dimensions
-
Length of largest span: 78.0 ft.
Total length: 266.0 ft.
Deck width: 23.9 ft.
- Recognition
- Eligible for the National Register of Historic Places
- Approximate latitude, longitude
- +38.66944, -90.04201 (decimal degrees)
38°40'10" N, 90°02'31" W (degrees°minutes'seconds") - Approximate UTM coordinates
- 15/757350/4284247 (zone/easting/northing)
- USGS topographic map
- Monks Mound
- Inventory numbers
- IL 060-0170 (Illinois bridge number)
BH 15492 (Bridgehunter.com ID) - Inspection (as of 12/2007)
- Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Good (7 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 73.1 (out of 100) - Average daily traffic (as of 2006)
- 1,000
Update Log
- March 9, 2010: Updated by Kim Harvey: street view
- September 25, 2009: New photo from Kim Harvey
- January 23, 2006: Posted photo from Bill Burmaster
Comments
I think the original bridge type is actually a concrete curved t-beams. Curved t-beams were built on freeways in a number of states. Not to brag, but my state of Michigan has beautiful curved t-beam overpasses because they include Michigan's attractive R4 railing design.
The 1960 construction date for this bridge is well within the milieu of curved t-beam overpass construction. One of the reasons for their use on limited access highways was increased under-bridge clearance.
This was a stringer bridge originally but when they wanted to widen the freeway it passes over, rather than rebuilding they made the extensions at either end and left the middle of the bridge as it was. There is an overpass on I-465 on the east side of Indianapolis which has had a similar treatment.