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I75 Exit 2 Interchange Bridge (S)

Map 

Street View 

Facts 

Overview
Prestressed beam bridge over I-75 Northbound to I-24 Westbound Ramp on I-75 Southbound
Location
Chattanooga, Hamilton County, Tennessee
Status
Open to traffic
History
Built 1959; portion of railing collapsed April 1, 2019
Design
Prestressed beam
Dimensions
Length of largest span: 50.9 ft.
Total length: 148.0 ft.
Deck width: 29.9 ft.
Approximate latitude, longitude
+35.00320, -85.21213   (decimal degrees)
35°00'12" N, 85°12'44" W   (degrees°minutes'seconds")
Approximate UTM coordinates
16/663148/3874858 (zone/easting/northing)
Average daily traffic (as of 2015)
107,770
Inventory numbers
TN 33I00750013 (Tennessee bridge number)
BH 84867 (Bridgehunter.com ID)
Inspection report (as of July 2016)
Overall condition: Fair
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Good (7 out of 9)
Deck condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 72.5 (out of 100)
View more at BridgeReports.com

Update Log 

  • April 1, 2019: Updated by Roger Deschner: Added category "Doomed" - whole interchange about to be rebuilt
  • April 1, 2019: New Street View added by Dana and Kay Klein
  • April 1, 2019: Added by James Baughn

Comments 

I75 Exit 2 Interchange Bridge (S)
Posted April 1, 2019, by Roger Deschner (rogerdeschner [at] gmail [dot] com)

Bridge is doomed because a contract has been let to rebuild the whole interchange.

The bents on this 60 year old bridge are of a distinctive style, different from later concrete beam bridges. It's also interesting that this bridge consists entirely of beams. There is no deck between beams, just beams laid right next to one another.

The July 2018 inspection report is interesting, pointing out a tree growing from a bent cap. It contains a cautionary note about removing it to prevent concrete splitting. So I wonder if that tree had anything to do with this beam collapse? The report contains lots of good photos of a bridge that is actually now historic, and doomed, as well as damaged.

https://WRCB.images.worldnow.com/library/52d21583-4388-4f82-... (This is a pdf.)

I-75 SB over I-75 NB to I-24 WB Overpass
Posted April 1, 2019, by Dana and Kay Klein

Not Surprised, LOOK at street view.