NFA B150 over TILLERY RD. / I75


+36.00306, -83.96250
36°00'11" N, 83°57'45" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:NFA B150 over TILLERY RD. / I75
Structure number:47I00750029
Purpose:Carries highway over highway
Route classification:Local (Urban) [19]
Length of largest span:143.1 ft. [43.6 m]
Total length:286.1 ft. [87.2 m]
Roadway width between curbs:29.9 ft. [9.1 m]
Deck width edge-to-edge:40.4 ft. [12.3 m]
Vertical clearance below bridge:16.7 ft. [5.1 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1981
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:2
Main spans material:Steel continuous [4]
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: January 2015 

Status:Open, no restriction [A]
Average daily traffic:4,350 [as of 2015]
Truck traffic:2% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
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:75.2 tons [68.4 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:76.9
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$373,000

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
January 201576.9Not deficientGoodGoodGood4350
January 201376.9Not deficientGoodGoodGood4350
January 201176.9Not deficientGoodGoodGood4350
January 200976.9Not deficientGoodGoodGood4350
January 200778.9Not deficientGoodGoodGood4350
December 200477.9Not deficientGoodGoodGood4350
March 200377.9Not deficientGoodGoodGood4350
March 200190.6Not deficientGoodGoodGood2000
December 199892.6Not deficientGoodGoodGood2000
February 199784.5Functionally obsoleteGoodGoodGood2000
January 199584.5Functionally obsoleteGoodGoodGood2000
January 199384.5Functionally obsoleteGoodGoodGood2000
November 199084.5Functionally obsoleteGoodGoodGood2000