I124 SBL over W.12TH ST (FAU 4425)


+35.04250, -85.31444
35°02'33" N, 85°18'52" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I124 SBL over W.12TH ST (FAU 4425)
Structure number:33I01240012
Location:4.2 MI S OF TN RIVER
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:64.0 ft. [19.5 m]
Total length:148.0 ft. [45.1 m]
Roadway width between curbs:47.9 ft. [14.6 m]
Deck width edge-to-edge:49.2 ft. [15.0 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1963
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
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: August 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:72,110 [as of 2015]
Truck traffic:5% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:57.4 tons [52.2 metric tons]
Inventory rating:34.7 tons [31.5 metric tons]
Sufficiency rating:71.4
Recommended work:Widening of existing bridge with deck rehabilitation or replacement. [34]
Estimated cost of work:$1,240,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201671.4FairGoodSatisfactoryGoodFO72110
August 201471.5FairGoodSatisfactoryGoodFO69530
August 201258.9FairSatisfactoryFairFairFO79600
August 201061.1FairSatisfactoryFairFairFO81010
September 200858.0PoorPoorFairFairSD78650
August 200658.7PoorPoorFairFairSD68800
September 200458.7PoorPoorFairFairSD69580
September 200288.6PoorPoorSatisfactorySatisfactorySD69220
October 200078.5PoorPoorGoodFairSD60470
September 199876.3FairFairGoodFairFO62630
August 199686.5FairSatisfactoryGoodGood-68000
January 199588.2FairSatisfactoryGoodGood-62840
December 199290.1FairSatisfactoryGoodGood-38350
February 199190.1FairSatisfactoryGoodGood-38350