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 2014 

Status:Open, no restriction [A]
Average daily traffic:69,530 [as of 2014]
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]
Evaluation:Structurally deficient [1]
Sufficiency rating:43.7
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$809,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
August 201443.7Structurally deficientGoodPoorSatisfactory69530
August 201270.1Functionally obsoleteGoodSatisfactorySatisfactory79600
August 201073.0Functionally obsoleteGoodSatisfactorySatisfactory81010
January 201059.2Functionally obsoleteSatisfactoryFairFair78650
September 200860.0Functionally obsoleteSatisfactoryFairFair68430
August 200662.0Functionally obsoleteSatisfactoryFairFair68750
September 200461.0Functionally obsoleteSatisfactoryFairFair68100
September 200261.1Functionally obsoleteSatisfactoryFairFair65850
October 200068.0Functionally obsoleteSatisfactoryFairFair59620
October 199866.0Functionally obsoleteSatisfactoryFairFair60040
August 199676.0Functionally obsoleteGoodSatisfactorySatisfactory68000
January 199576.0Functionally obsoleteGoodGoodGood62840
December 199276.0Functionally obsoleteGoodGoodGood38350
April 199176.0Functionally obsoleteGoodGoodGood38350