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 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:4,350 [as of 2017]
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. RatingConditionDeckSuperstructureSubstructureSD/FOADT
January 201776.9GoodGoodGoodGood-4350
January 201576.9GoodGoodGoodGood-4350
January 201376.9GoodGoodGoodGood-4350
January 201176.9GoodGoodGoodGood-4350
January 200976.9GoodGoodGoodGood-4350
January 200778.9GoodGoodGoodGood-4350
December 200477.9GoodGoodGoodGood-4350
March 200377.9GoodGoodGoodGood-4350
March 200190.6GoodGoodGoodGood-2000
December 199892.6GoodGoodGoodGood-2000
February 199784.5GoodGoodGoodGoodFO2000
January 199584.5GoodGoodGoodGoodFO2000
January 199384.5GoodGoodGoodGoodFO2000
November 199084.5GoodGoodGoodGoodFO2000