I640 over I640 / SR33


+36.01861, -83.92222
36°01'07" N, 83°55'20" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I640 over I640 / SR33
Structure number:47I06400013
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:93.5 ft. [28.5 m]
Total length:178.5 ft. [54.4 m]
Roadway width between curbs:120.1 ft. [36.6 m]
Deck width edge-to-edge:126.0 ft. [38.4 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:27°
Owner:State Highway Agency [01]
Year built:1970
Year reconstructed:2003
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:2
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: April 2014 

Status:Open, no restriction [A]
Average daily traffic:75,150 [as of 2014]
Truck traffic:14% of total traffic
Deck condition:Good [7 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]
Underclearances appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:57.4 tons [52.2 metric tons]
Inventory rating:34.7 tons [31.5 metric tons]
Sufficiency rating:97.7

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
April 201497.7Not deficientGoodSatisfactorySatisfactory75150
April 201297.7Not deficientVery GoodVery GoodGood74810
April 201097.7Not deficientVery GoodVery GoodVery Good68940
March 200897.7Not deficientVery GoodVery GoodVery Good70350
December 200697.7Not deficientVery GoodVery GoodVery Good58980
December 200497.7Not deficientVery GoodVery GoodVery Good56850
May 200397.7Not deficientExcellentExcellentVery Good56550
September 200295.7Not deficientSatisfactorySatisfactoryGood52100
September 200092.7Functionally obsoleteSatisfactorySatisfactoryGood44350
December 199893.0Functionally obsoleteSatisfactorySatisfactoryGood54880
September 199693.0Functionally obsoleteSatisfactorySatisfactoryGood45290
November 199494.0Functionally obsoleteSatisfactorySatisfactoryGood45200
August 199294.0Functionally obsoleteSatisfactorySatisfactoryGood29100
October 199094.0Functionally obsoleteSatisfactorySatisfactoryGood29100