I-75 over FORT ST


+42.27836, -83.15341
42°16'42" N, 83°09'12" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I-75 over FORT ST
Structure number:000000000011734
Old structure number:82182194000S060 (from 1992 edition)
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:123.0 ft. [37.5 m]
Total length:821.9 ft. [250.5 m]
Roadway width between curbs:125.7 ft. [38.3 m]
Deck width edge-to-edge:132.6 ft. [40.4 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Skew angle:66°
Owner:State Highway Agency [01]
Year built:1967
Year reconstructed:1981
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:10
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Latex Concrete or similar additive [3]

Latest Available Inspection: May 2015

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:100,492 [as of 2007]
Truck traffic:12% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:57.0 tons [51.8 metric tons]
Inventory rating:34.2 tons [31.1 metric tons]
Sufficiency rating:78.5
Recommended work:Bridge deck replacement with only incidental widening. [37]

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
May 201578.5PoorPoorSatisfactoryFairSD100492
May 201378.5PoorPoorSatisfactoryFairSD100492
May 201191.5FairFairSatisfactorySatisfactory-100492
May 200991.5FairFairSatisfactorySatisfactory-100492
June 200791.5FairFairSatisfactorySatisfactory-103000
June 200591.5FairFairSatisfactorySatisfactory-99000
April 200391.5FairFairSatisfactorySatisfactory-99000
April 200191.5FairFairSatisfactorySatisfactory-99000
May 199996.5FairFairSatisfactorySatisfactory-99000
July 199792.0FairFairSatisfactorySatisfactory-99000
August 199666.0PoorSatisfactorySatisfactoryPoorSD84000
August 199466.0PoorSatisfactoryVery GoodPoorSD93000
June 199266.0PoorSatisfactoryVery GoodPoorSD93000
May 199066.0PoorGoodVery GoodPoorSD93000