I-75 SBL over I75 NB TO I24 WB


+35.00278, -85.21194
35°00'10" N, 85°12'43" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-75 SBL over I75 NB TO I24 WB
Structure number:33I00750013
Location:I-24 JUNCTION
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:50.9 ft. [15.5 m]
Total length:148.0 ft. [45.1 m]
Roadway width between curbs:29.9 ft. [9.1 m]
Deck width edge-to-edge:36.4 ft. [11.1 m]
Vertical clearance below bridge:17.1 ft. [5.2 m]
Skew angle:46°
Owner:State Highway Agency [01]
Year built:1959
Historic significance:Historical significance is not determinable at this time [4]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:3
Main spans material:Prestressed concrete [5]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Other [9]
Wearing surface:Bituminous [6]

Latest Available Inspection: July 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:107,770 [as of 2015]
Truck traffic:20% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Underclearances appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Operating rating:98.0 tons [89.1 metric tons]
Inventory rating:35.6 tons [32.4 metric tons]
Sufficiency rating:72.5
Recommended work:Widening of existing bridge or other major structure without deck rehabilitation or replacement [33]
Estimated cost of work:$2,000

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
July 201672.5FairSatisfactorySatisfactoryGoodFO107770
July 201472.5FairSatisfactorySatisfactorySatisfactoryFO108370
July 201272.5FairSatisfactorySatisfactorySatisfactoryFO108430
July 201072.5FairSatisfactorySatisfactorySatisfactoryFO108050
July 200871.7FairSatisfactorySatisfactorySatisfactoryFO121400
July 200672.4FairSatisfactorySatisfactorySatisfactoryFO109090
August 200473.0FairSatisfactorySatisfactorySatisfactoryFO100160
August 200273.2FairGoodSatisfactorySatisfactoryFO96390
September 200061.0FairGoodSatisfactorySatisfactoryFO87140
September 199859.0FairGoodSatisfactorySatisfactoryFO86630
August 199661.0FairGoodSatisfactorySatisfactoryFO83820
November 199461.0FairGoodSatisfactorySatisfactoryFO77210
October 199266.0FairGoodSatisfactorySatisfactoryFO54840
November 199066.0FairGoodSatisfactorySatisfactoryFO54840