I-75 N TO I-375 N over I-375


+42.34233, -83.04340
42°20'32" N, 83°02'36" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.


Name:I-75 N TO I-375 N over I-375
Structure number:000000000011801
Old structure number:82182251000S030 (from 1992 edition)
Location:IN DETROIT OVER I-375
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:118.8 ft. [36.2 m]
Total length:398.0 ft. [121.3 m]
Roadway width between curbs:34.5 ft. [10.5 m]
Deck width edge-to-edge:38.4 ft. [11.7 m]
Vertical clearance below bridge:15.1 ft. [4.6 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1964
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:5
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: March 2014 

Status:Open, no restriction [A]
Average daily traffic:43,796 [as of 2007]
Truck traffic:15% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Better than present minimum criteria [7]
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:67.0 tons [60.9 metric tons]
Inventory rating:40.3 tons [36.6 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:96.0

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
March 201496.0Functionally obsoleteSatisfactoryGoodGood43796
March 201296.0Functionally obsoleteSatisfactoryGoodGood43796
April 201096.0Functionally obsoleteSatisfactoryGoodGood43796
March 200996.0Functionally obsoleteGoodGoodGood43796
August 200786.0Not deficientFairFairFair39301
July 200586.0Not deficientFairFairFair39301
July 200386.0Not deficientFairFairFair12200
July 200186.0Not deficientFairFairFair12200
May 200070.0Structurally deficientFairFairPoor12200
August 199866.0Structurally deficientSatisfactoryFairPoor12200
September 199696.0Not deficientSatisfactorySatisfactorySatisfactory12200
August 199496.0Not deficientSatisfactorySatisfactorySatisfactory12200
August 199296.0Not deficientSatisfactoryGoodSatisfactory12200
June 199096.0Not deficientSatisfactoryGoodSatisfactory12200