I124 NBL over I-124-RL / W. 9TH ST.


+35.04611, -85.31389
35°02'46" N, 85°18'50" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I124 NBL over I-124-RL / W. 9TH ST.
Structure number:33I01240013
Location:3 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:198.2 ft. [60.4 m]
Roadway width between curbs:38.1 ft. [11.6 m]
Deck width edge-to-edge:49.2 ft. [15.0 m]
Vertical clearance below bridge:18.7 ft. [5.7 m]
Skew angle:26°
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:Prestressed concrete [5]
Main spans design:Box beam or girders - Multiple [05]
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:72,110 [as of 2015]
Truck traffic:5% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:64.4 tons [58.5 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:43.4
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$2,554,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
August 201643.4PoorGoodPoorSatisfactorySD72110
August 201443.7PoorGoodPoorSatisfactorySD69530
August 201270.1FairGoodSatisfactorySatisfactoryFO79600
August 201073.0FairGoodSatisfactorySatisfactoryFO81010
January 201059.2FairSatisfactoryFairFairFO78650
September 200860.0FairSatisfactoryFairFairFO68430
August 200662.0FairSatisfactoryFairFairFO68750
September 200461.0FairSatisfactoryFairFairFO68100
September 200261.1FairSatisfactoryFairFairFO65850
October 200068.0FairSatisfactoryFairFairFO59620
October 199866.0FairSatisfactoryFairFairFO60040
August 199676.0FairGoodSatisfactorySatisfactoryFO68000
January 199576.0GoodGoodGoodGoodFO62840
December 199276.0GoodGoodGoodGoodFO38350
April 199176.0GoodGoodGoodGoodFO38350