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NFA B242 (SA 4528) over I81

Map

Coordinates:
+36.13361, -83.29417
36°08'01" N, 83°17'39" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:NFA B242 (SA 4528) over I81
Structure number:45I00810017
Location:7.1 MI NE JCT I40&I81
Purpose:Carries highway over highway
Route classification:Minor Collector (Rural) [08]
Length of largest span:72.5 ft. [22.1 m]
Total length:254.3 ft. [77.5 m]
Roadway width between curbs:24.3 ft. [7.4 m]
Deck width edge-to-edge:28.9 ft. [8.8 m]
Vertical clearance below bridge:17.7 ft. [5.4 m]
Skew angle:23°
Owner:State Highway Agency [01]
Year built:1966
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 13.5 / HS 15 [3]
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:Bituminous [6]

Latest Available Inspection: June 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:990 [as of 2017]
Truck traffic:21% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Meets minimum tolerable limits to be left in place as is [4]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:36.6 tons [33.3 metric tons]
Inventory rating:22.8 tons [20.7 metric tons]
Sufficiency rating:64.5
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$386,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
June 201664.5FairSatisfactorySatisfactorySatisfactory-990
June 201464.5FairSatisfactorySatisfactorySatisfactory-990
June 201264.5FairSatisfactorySatisfactorySatisfactory-990
July 201063.5FairSatisfactorySatisfactorySatisfactory-990
June 200863.5FairSatisfactorySatisfactorySatisfactory-990
June 200663.5FairSatisfactorySatisfactorySatisfactory-1010
July 200463.3FairSatisfactorySatisfactoryGood-1420
May 200263.6FairSatisfactorySatisfactorySatisfactory-890
May 200061.6FairSatisfactorySatisfactorySatisfactory-850
July 199863.6FairSatisfactorySatisfactorySatisfactory-780
June 199671.8FairSatisfactorySatisfactorySatisfactory-400
August 199470.8FairSatisfactoryGoodSatisfactory-400
June 199270.8FairSatisfactoryGoodSatisfactory-300
August 199076.4FairSatisfactoryGoodSatisfactory-300