+34.70917, -86.60972
34°42'33" N, 86°36'35" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:US 231; SR 53 over SERVICE ROAD LOOP
Structure number:010056
Location:2 MI S JCT US 431 * SR 53
Purpose:Carries highway over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:81.0 ft. [24.7 m]
Total length:286.1 ft. [87.2 m]
Roadway width between curbs:81.7 ft. [24.9 m]
Deck width edge-to-edge:89.2 ft. [27.2 m]
Vertical clearance below bridge:16.1 ft. [4.9 m]
Owner:State Highway Agency [01]
Year built:1969
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:4
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: October 2016 

Status:Open, no restriction [A]
Average daily traffic:100,360 [as of 2015]
Truck traffic:3% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Operating rating:87.3 tons [79.4 metric tons]
Inventory rating:52.3 tons [47.5 metric tons]
Sufficiency rating:93.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$6,513,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
October 201693.0Not deficientSatisfactoryGoodGood100360
October 201493.0Not deficientSatisfactoryGoodGood100730
October 201292.0Not deficientSatisfactoryGoodGood94920
October 201092.0Not deficientSatisfactoryGoodGood89220
October 200892.0Not deficientSatisfactoryGoodGood91410
October 200693.0Not deficientSatisfactoryGoodGood100230
October 200493.0Not deficientSatisfactoryGoodGood93350
October 200292.0Not deficientSatisfactoryGoodGood86710
October 200089.0Not deficientSatisfactoryGoodGood67710
October 199889.0Not deficientSatisfactoryGoodGood82850
October 199689.0Not deficientSatisfactoryGoodGood77570
October 199489.0Not deficientSatisfactoryGoodGood67890
October 199276.0Functionally obsoleteGoodGoodGood67190