I40 over I40 VIADUCT/ 7 RTS-CR-RR


+35.96861, -83.92750
35°58'07" N, 83°55'39" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I40 over I40 VIADUCT/ 7 RTS-CR-RR
Structure number:47I00400061
Purpose:Carries highway over highway, waterway, and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:115.2 ft. [35.1 m]
Total length:2719.0 ft. [828.7 m]
Roadway width between curbs:167.7 ft. [51.1 m]
Deck width edge-to-edge:169.6 ft. [51.7 m]
Vertical clearance below bridge:15.1 ft. [4.6 m]
Skew angle:14°
Owner:State Highway Agency [01]
Year built:1964
Year reconstructed:2006
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:31
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: November 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:100,610 [as of 2017]
Truck traffic:14% 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: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]
Scour condition:Bridge foundations (including piles) on dry land well above flood water elevations. [9]
Operating rating:48.5 tons [44.1 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:86.3

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
November 201686.3GoodGoodGoodGood-100610
November 201486.3GoodGoodGoodGood-100610
November 201286.3GoodGoodGoodGood-100610
December 201086.3GoodGoodGoodGood-100610
May 200986.3GoodGoodGoodGood-100610
January 200753.0PoorPoorPoorFairSD94000
January 200553.0PoorPoorPoorFairSD94510
March 200353.0PoorPoorPoorFairSD102830
March 200172.0FairSatisfactorySatisfactoryFair-95020
October 19980.0-----18710
January 199765.0PoorPoorSatisfactoryFairSD81000
December 199468.0FairSatisfactorySatisfactoryFairFO90000
November 199279.0FairSatisfactorySatisfactoryGoodFO68300
November 199079.0FairSatisfactorySatisfactoryGoodFO68300