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


+35.05194, -85.31389
35°03'07" N, 85°18'50" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I124 SBL over W. 4TH ST (SR 389)
Structure number:33I01240018
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:38.1 ft. [11.6 m]
Deck width edge-to-edge:44.0 ft. [13.4 m]
Vertical clearance below bridge:16.4 ft. [5.0 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:Poor
Status:Open, no restriction [A]
Average daily traffic:74,400 [as of 2015]
Truck traffic:5% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 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:38.6 tons [35.1 metric tons]
Inventory rating:22.8 tons [20.7 metric tons]
Sufficiency rating:50.4
Recommended work:Widening of existing bridge with deck rehabilitation or replacement. [34]
Estimated cost of work:$964,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201650.4PoorPoorSatisfactorySatisfactorySD74400
August 201454.0FairFairSatisfactorySatisfactoryFO71020
August 201253.2FairFairSatisfactorySatisfactoryFO80380
August 201068.6FairFairSatisfactorySatisfactoryFO82480
September 200855.6FairFairFairFairFO79870
August 200658.7FairFairFairFairFO68750
September 200459.8FairFairFairFairFO68100
September 200257.3FairFairFairFairFO61700
October 200062.0FairFairFairFairFO55100
October 199860.0FairFairFairFairFO59080
August 199662.0FairFairFairFairFO63650
January 199573.0FairFairSatisfactorySatisfactoryFO71850
December 199290.0FairFairSatisfactorySatisfactory-47150
April 199190.0FairFairSatisfactorySatisfactory-47150