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DAVISON RAMP(M-8) over I-75

Map 

Coordinates:
+42.40888, -83.07941
42°24'32" N, 83°04'46" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:DAVISON RAMP(M-8) over I-75
Structure number:000000000011868
Old structure number:82182252000S330 (from 1992 edition)
Location:IN DETROIT OVER I-75 RAMP
Purpose:Carries highway overpass (third level) over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:135.8 ft. [41.4 m]
Total length:659.2 ft. [200.9 m]
Roadway width between curbs:24.3 ft. [7.4 m]
Deck width edge-to-edge:28.2 ft. [8.6 m]
Vertical clearance below bridge:22.0 ft. [6.7 m]
Owner:State Highway Agency [01]
Year built:1969
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:6
Main spans material:Steel continuous [4]
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 2016 

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:17,730 [as of 1982]
Truck traffic:3% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
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:96.3 tons [87.5 metric tons]
Inventory rating:57.4 tons [52.2 metric tons]
Sufficiency rating:90.0

Previous Inspections 

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
May 201690.0FairFairGoodSatisfactoryFO17730
May 201490.0FairFairGoodGoodFO17730
May 201290.0FairFairGoodGoodFO17730
May 201090.0FairFairGoodGoodFO17730
July 200991.0FairSatisfactoryGoodGoodFO17730
July 200791.0FairSatisfactoryGoodGoodFO17730
July 200591.0FairSatisfactoryGoodGoodFO17730
July 200381.0PoorPoorSatisfactoryFairSD17730
September 200181.0PoorPoorSatisfactoryFairSD17730
June 200079.0PoorSeriousSatisfactoryFairSD17730
September 199881.0PoorPoorFairFairSD17730
October 199684.0FairGoodGoodFair-17730
October 199495.0FairGoodGoodSatisfactory-17730
August 199295.0FairGoodGoodSatisfactory-17730
July 199095.0GoodGoodVery GoodGood-17730