I640 LL over I640-LL (WB) / I275


+36.00000, -83.95833
36°00'00" N, 83°57'30" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I640 LL over I640-LL (WB) / I275
Structure number:47I02750020
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:52.8 ft. [16.1 m]
Total length:180.8 ft. [55.1 m]
Roadway width between curbs:54.5 ft. [16.6 m]
Deck width edge-to-edge:56.8 ft. [17.3 m]
Vertical clearance above deck:18.4 ft. [5.6 m]
Vertical clearance below bridge:16.4 ft. [5.0 m]
Skew angle:
Owner:State Highway Agency [01]
Year built:1962
Year reconstructed:1981
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:4
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: April 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:76,230 [as of 2015]
Truck traffic:10% 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:Equal to present minimum criteria [6]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:90.1 tons [81.9 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:86.5

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
April 201686.5FairSatisfactorySatisfactorySatisfactoryFO76230
April 201486.6FairSatisfactorySatisfactorySatisfactoryFO75150
April 201286.6FairSatisfactorySatisfactorySatisfactoryFO74810
April 201087.2GoodGoodGoodGoodFO68940
March 200887.1GoodGoodGoodGoodFO70350
December 200686.8GoodGoodGoodGoodFO73730
November 200486.6GoodVery GoodGoodGoodFO75230
September 200286.9FairSatisfactoryGoodGoodFO72460
September 200087.3FairSatisfactoryGoodGoodFO67830
December 199887.5FairSatisfactoryGoodGoodFO66490
September 199687.8FairSatisfactoryGoodGoodFO62640
November 199489.6FairSatisfactoryGoodGoodFO55980
August 199289.7FairSatisfactoryGoodGoodFO54800
October 199089.7FairSatisfactoryGoodGoodFO54800