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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 2014 

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: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:96.3 tons [87.5 metric tons]
Inventory rating:57.4 tons [52.2 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:90.0

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
May 201490.0Functionally obsoleteFairGoodGood17730
May 201290.0Functionally obsoleteFairGoodGood17730
May 201090.0Functionally obsoleteFairGoodGood17730
July 200991.0Functionally obsoleteSatisfactoryGoodGood17730
July 200791.0Functionally obsoleteSatisfactoryGoodGood17730
July 200591.0Functionally obsoleteSatisfactoryGoodGood17730
July 200381.0Structurally deficientPoorSatisfactoryFair17730
September 200181.0Structurally deficientPoorSatisfactoryFair17730
June 200079.0Structurally deficientSeriousSatisfactoryFair17730
September 199881.0Structurally deficientPoorFairFair17730
October 199684.0Not deficientGoodGoodFair17730
October 199495.0Not deficientGoodGoodSatisfactory17730
August 199295.0Not deficientGoodGoodSatisfactory17730
July 199095.0Not deficientGoodVery GoodGood17730