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

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.16,43416,434000
Steel Protective Coatingsq. ft.222,67469,02986,84366,8020
Reinforced Concrete Decksq. ft.108,81238,08443,52527,2030
Steel Pin or Pin & Hangar Assemblyeach4040000
Reinforced Concrete Columneach683126110
Reinforced Concrete Abutmentlinear ft.2642343000
Reinforced Concrete Pier Caplinear ft.1,4608061265280
Strip Seal Jointlinear ft.95282006666
Pourable Jointlinear ft.264002640
Movable Bearingeach120595290
Fixed Bearingeach1408233250
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.2,4662,191752000