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

Map

Coordinates:
+42.34333, -83.04450
42°20'36" N, 83°02'40" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:M-3 WB CONN over I-375 & I-75 RAMP
Structure number:000000000011811
Old structure number:82182251000S094 (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:41.3 ft. [12.6 m]
Deck width edge-to-edge:44.9 ft. [13.7 m]
Vertical clearance below bridge:15.1 ft. [4.6 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:Better than present minimum criteria [7]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Inventory rating:66.9 tons [60.8 metric tons]
Sufficiency rating:87.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
March 201687.0FairGoodFairSatisfactory-22748
March 201487.0FairGoodFairSatisfactory-22748
March 201287.0FairGoodFairSatisfactory-22748
March 201087.0FairGoodFairSatisfactory-22748
May 200897.0FairGoodSatisfactorySatisfactory-22748
May 200697.0FairGoodSatisfactorySatisfactory-14166
June 200497.0FairVery GoodSatisfactorySatisfactory-14360
May 200297.0FairVery GoodSatisfactorySatisfactory-14360
May 200097.0FairVery GoodSatisfactorySatisfactory-14360
August 199877.0FairFairFairSatisfactory-14360
September 199697.0FairSatisfactoryGoodGood-14360
August 199497.0FairSatisfactoryVery GoodGood-14360
August 199297.0FairSatisfactoryVery GoodSatisfactory-14360
June 199097.0GoodGoodVery GoodGood-14360

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.3122971500
Steel Protective Coatingsq. ft.2,3592,359000
Deck
Reinforced Concrete Decksq. ft.1,7011,701000
Substructure
Reinforced Concrete Abutmentlinear ft.112112000
Joints
Pourable Jointlinear ft.112872500
Bearings
Movable Bearingeach88000
Fixed Bearingeach88000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.118118000