I40 over I40 / OLD WEST HILLS I/C


+35.92889, -84.03917
35°55'44" N, 84°02'21" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I40 over I40 / OLD WEST HILLS I/C
Structure number:47I00400021
Location:.8 M SE OF SR1
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:59.1 ft. [18.0 m]
Total length:147.6 ft. [45.0 m]
Roadway width between curbs:108.3 ft. [33.0 m]
Deck width edge-to-edge:110.6 ft. [33.7 m]
Owner:State Highway Agency [01]
Year built:1959
Year reconstructed:2002
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
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: November 2014 

Status:Open, no restriction [A]
Average daily traffic:179,850 [as of 2014]
Truck traffic:18% 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:Equal to present minimum criteria [6]
Deck geometry appraisal:Superior to present desirable criteria [9]
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:33.7 tons [30.6 metric tons]
Sufficiency rating:84.2

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
November 201484.2Not deficientSatisfactorySatisfactorySatisfactory179850
November 201284.2Not deficientSatisfactorySatisfactorySatisfactory177680
November 201084.2Not deficientSatisfactorySatisfactorySatisfactory172200
January 200984.2Not deficientSatisfactorySatisfactorySatisfactory172680
November 200684.2Not deficientSatisfactorySatisfactorySatisfactory146430
February 200584.2Not deficientSatisfactorySatisfactorySatisfactory145640
November 200284.2Not deficientSatisfactorySatisfactorySatisfactory145780
November 200083.2Not deficientSatisfactorySatisfactorySatisfactory135940
October 199883.2Not deficientSatisfactorySatisfactorySatisfactory149510
October 199684.0Not deficientSatisfactorySatisfactorySatisfactory143140
November 199486.2Functionally obsoleteSatisfactoryGoodGood99460
October 199286.0Not deficientGoodGoodGood102020
October 199086.0Not deficientGoodGoodGood102020