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MADISON AVE RAMPS over I-375

Map 

Coordinates:
+42.34013, -83.04206
42°20'24" N, 83°02'31" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:MADISON AVE RAMPS over I-375
Structure number:000000000011800
Old structure number:82182251000S020 (from 1992 edition)
Location:IN DETROIT
Purpose:Carries highway over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:107.0 ft. [32.6 m]
Total length:361.9 ft. [110.3 m]
Roadway width between curbs:67.6 ft. [20.6 m]
Deck width edge-to-edge:69.9 ft. [21.3 m]
Vertical clearance below bridge:14.4 ft. [4.4 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1964
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 [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: June 2015 

Status:Open, no restriction [A]
Average daily traffic:3,784 [as of 2010]
Truck traffic:3% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Superior to present desirable criteria [9]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Meets minimum tolerable limits to be left in place as is [4]
Scour condition:Bridge not over waterway. [N]
Operating rating:85.6 tons [77.8 metric tons]
Inventory rating:51.4 tons [46.7 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:82.0

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
June 201582.0Functionally obsoleteFairGoodFair3784
June 201381.0Functionally obsoleteFairGoodFair3784
March 201181.0Functionally obsoleteFairGoodFair11900
March 201049.4Structurally deficientFairSeriousFair11900
March 200794.4Functionally obsoleteVery GoodGoodGood11900
December 200593.4Functionally obsoleteFairGoodGood11900
September 200493.4Functionally obsoleteFairGoodGood11900
October 200393.4Functionally obsoleteFair-Good11900
July 200266.4Structurally deficientFairPoorFair11900
July 200162.4Structurally deficientSeriousPoorFair11900
May 200062.4Structurally deficientSeriousPoorFair11900
September 199962.4Structurally deficientSeriousPoorSatisfactory11900
August 199862.4Structurally deficientSeriousPoorPoor11900
July 199763.4Structurally deficientSeriousPoorPoor11900
September 199667.4Structurally deficientFairPoorSatisfactory11900
August 199468.2Structurally deficientSatisfactoryPoorSatisfactory11900
August 199268.2Structurally deficientSatisfactoryPoorSatisfactory11900
June 199068.2Structurally deficientSatisfactoryPoorSatisfactory11900