Share:

M-3 EB CONN over I-375 & I-75 RAMP

Map 

Coordinates:
+42.34014, -83.04133
42°20'25" N, 83°02'29" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:M-3 EB CONN over I-375 & I-75 RAMP
Structure number:000000000011810
Old structure number:82182251000S093 (from 1992 edition)
Location:IN DETROIT OVER I-375 NW
Purpose:Carries highway over highway
Route classification:Principal Arterial - Other Freeways or Expressways (Urban) [12]
Length of largest span:38.7 ft. [11.8 m]
Total length:38.7 ft. [11.8 m]
Roadway width between curbs:53.2 ft. [16.2 m]
Deck width edge-to-edge:56.8 ft. [17.3 m]
Vertical clearance below bridge:17.4 ft. [5.3 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1964
Year reconstructed:1998
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: March 2016 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:22,748 [as of 2007]
Deck condition:Good [7 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Equal to present minimum criteria [6]
Underclearances appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Better than present minimum criteria [7]
Scour condition:Bridge not over waterway. [N]
Inventory rating:66.9 tons [60.8 metric tons]
Sufficiency rating:89.0

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
March 201689.0FairGoodFairSatisfactory-22748
March 201489.0FairGoodFairSatisfactory-22748
March 201289.0FairGoodFairSatisfactory-22748
March 201089.0FairGoodFairSatisfactory-22748
May 2008100.0FairVery GoodSatisfactorySatisfactory-22748
May 200698.0FairVery GoodSatisfactorySatisfactory-14166
May 200498.0FairVery GoodSatisfactorySatisfactory-14360
May 200298.0FairVery GoodSatisfactorySatisfactory-14360
May 200098.0FairVery GoodSatisfactorySatisfactory-14360
August 199883.0FairFairFairSatisfactory-14360
September 199697.0FairSatisfactoryGoodSatisfactory-14360
August 199498.0FairSatisfactoryVery GoodSatisfactory-14360
August 199298.0FairSatisfactoryVery GoodSatisfactory-14360
June 199098.0GoodGoodVery GoodGood-14360