I124 NBL over W. 4TH ST (SR 389)


+35.05194, -85.31361
35°03'07" N, 85°18'49" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I124 NBL over W. 4TH ST (SR 389)
Structure number:33I01240017
Location:1 MI S OF TN RIVER
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:42.0 ft. [12.8 m]
Total length:160.1 ft. [48.8 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:32.2 ft. [9.8 m]
Vertical clearance below bridge:23.6 ft. [7.2 m]
Skew angle:10°
Owner:State Highway Agency [01]
Year built:1958
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:4
Main spans material:Concrete [1]
Main spans design:Tee beam [04]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: August 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:74,400 [as of 2015]
Truck traffic:5% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Operating rating:39.6 tons [36.0 metric tons]
Inventory rating:23.8 tons [21.6 metric tons]
Sufficiency rating:44.9
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$746,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201644.9FairGoodGoodFairFO74400
August 201445.3FairGoodGoodFairFO71020
August 201255.0FairSatisfactorySatisfactorySatisfactoryFO80380
August 201067.3FairSatisfactorySatisfactorySatisfactoryFO82480
September 200854.1FairFairFairFairFO79870
August 200657.3FairFairFairFairFO68750
September 200454.3FairFairFairFairFO68100
September 200254.8FairFairFairFairFO61700
October 200059.8FairFairFairFairFO55100
October 199857.8FairFairFairFairFO59080
August 199670.8FairFairSatisfactorySatisfactoryFO63650
January 199573.0FairFairGoodGoodFO71850
December 199271.0FairFairGoodGoodFO47150
April 199171.0FairFairGoodGoodFO47150