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 2014 

Status:Open, no restriction [A]
Average daily traffic:100,610 [as of 2015]
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. ratingEvaluationDeckSuper.Sub.ADT
November 201486.3Not deficientGoodGoodGood100610
November 201286.3Not deficientGoodGoodGood100610
December 201086.3Not deficientGoodGoodGood100610
May 200986.3Not deficientGoodGoodGood100610
January 200753.0Structurally deficientPoorPoorFair94000
January 200553.0Structurally deficientPoorPoorFair94510
March 200353.0Structurally deficientPoorPoorFair102830
March 200172.0Not deficientSatisfactorySatisfactoryFair95020
October 19980.0Not applicable---18710
January 199765.0Structurally deficientPoorSatisfactoryFair81000
December 199468.0Functionally obsoleteSatisfactorySatisfactoryFair90000
November 199279.0Functionally obsoleteSatisfactorySatisfactoryGood68300
November 199079.0Functionally obsoleteSatisfactorySatisfactoryGood68300