I40 over I40 / HOLSTON R. &SR 168


+36.00778, -83.82833
36°00'28" N, 83°49'42" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I40 over I40 / HOLSTON R. &SR 168
Structure number:47I00400099
Location:2.4 M SE OF HAMMER RD
Purpose:Carries highway over highway and waterway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:240.2 ft. [73.2 m]
Total length:1194.0 ft. [363.9 m]
Roadway width between curbs:107.0 ft. [32.6 m]
Deck width edge-to-edge:108.9 ft. [33.2 m]
Vertical clearance below bridge:36.7 ft. [11.2 m]
Owner:State Highway Agency [01]
Year built:1971
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:7
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: November 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:70,030 [as of 2015]
Truck traffic:26% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 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:Superior to present desirable criteria [9]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:53.5 tons [48.6 metric tons]
Inventory rating:31.7 tons [28.8 metric tons]
Sufficiency rating:68.8
Recommended work:Bridge deck rehabilitation with only incidental widening. [36]
Estimated cost of work:$7,718,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201668.8FairSatisfactoryFairSatisfactory-70030
December 201468.8FairSatisfactoryFairSatisfactory-66140
December 201268.8FairSatisfactoryFairSatisfactory-72040
January 201168.8FairSatisfactoryFairSatisfactory-84110
September 200968.8FairSatisfactoryFairSatisfactory-90900
February 200979.8FairSatisfactorySatisfactorySatisfactory-70400
December 200680.8FairSatisfactorySatisfactorySatisfactory-69160
November 200469.8FairSatisfactoryFairSatisfactory-69900
February 200354.8PoorSatisfactoryPoorSatisfactorySD75160
December 200154.8PoorSatisfactoryPoorSatisfactorySD76950
February 200170.8FairSatisfactoryFairSatisfactory-77310
November 199870.8FairSatisfactoryFairSatisfactory-69460
December 199632.5PoorSatisfactorySeriousSatisfactorySD60450
December 199432.5PoorSatisfactorySeriousSatisfactorySD41940
January 199332.5PoorSatisfactorySeriousSatisfactorySD50800
November 199032.5PoorFairSeriousSatisfactorySD50800