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


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


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)
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
Steel Girder/Beamlinear ft.3122971500
Steel Protective Coatingsq. ft.2,3592,359000
Reinforced Concrete Decksq. ft.1,7011,701000
Reinforced Concrete Abutmentlinear ft.112112000
Pourable Jointlinear ft.112872500
Movable Bearingeach88000
Fixed Bearingeach88000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.118118000