NFA B120 over MURRAY RD. / I75


+36.01639, -83.98583
36°00'59" N, 83°59'09" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:NFA B120 over MURRAY RD. / I75
Structure number:47I00750035
Location:S OF SR131-I75 EXIT
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Local (Urban) [19]
Length of largest span:66.3 ft. [20.2 m]
Total length:221.5 ft. [67.5 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:40.4 ft. [12.3 m]
Vertical clearance below bridge:15.4 ft. [4.7 m]
Skew angle:10°
Owner:State Highway Agency [01]
Year built:1969
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 continuous [2]
Main spans design:Tee beam [04]
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:Fair
Status:Open, no restriction [A]
Average daily traffic:2,320 [as of 2017]
Truck traffic:2% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:61.4 tons [55.8 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:84.5

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
January 201784.5FairVery GoodSatisfactoryGoodFO2320
January 201584.5FairVery GoodSatisfactoryGoodFO2320
January 201384.5FairVery GoodSatisfactoryGoodFO2320
January 201184.5FairVery GoodSatisfactoryGoodFO2320
January 200984.5FairVery GoodSatisfactoryGoodFO2320
January 200779.4PoorPoorSatisfactoryGoodSD2320
December 200480.4PoorPoorSatisfactoryGoodSD2320
March 200380.4PoorPoorSatisfactoryGoodSD2320
March 200187.1FairFairSatisfactoryGood-1000
December 199889.1FairFairSatisfactoryGood-1000
February 199784.0FairFairSatisfactoryGood-1000
February 199584.1FairSatisfactoryGoodGood-1000
January 199384.1FairSatisfactoryGoodGood-1000
November 199084.1FairSatisfactoryGoodGood-1000