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I-75N-I94W RAMP over I-75 & RAMP

Map 

Coordinates:
+42.36826, -83.05869
42°22'06" N, 83°03'31" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts 

Name:I-75N-I94W RAMP over I-75 & RAMP
Structure number:000000000011826
Old structure number:82182251000S250 (from 1992 edition)
Location:IN DETROIT
Purpose:Carries highway overpass over highway
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:107.9 ft. [32.9 m]
Total length:772.0 ft. [235.3 m]
Roadway width between curbs:25.9 ft. [7.9 m]
Deck width edge-to-edge:29.2 ft. [8.9 m]
Vertical clearance below bridge:29.9 ft. [9.1 m]
Skew angle:99°
Owner:State Highway Agency [01]
Year built:1964
Year reconstructed:2002
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:9
Main spans material:Steel [3]
Main spans 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 

Status:Open, no restriction [A]
Average daily traffic:10,110 [as of 1982]
Truck traffic:10% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Satisfactory [6 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:Equal to present desirable criteria [8]
Underclearances appraisal:Basically intolerable requiring high priority of corrrective action [3]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Operating rating:70.6 tons [64.2 metric tons]
Inventory rating:42.5 tons [38.6 metric tons]
Evaluation:Functionally obsolete [2]
Sufficiency rating:83.0

Previous Inspections 

DateSuff. ratingEvaluationDeckSuper.Sub.ADT
March 201683.0Functionally obsoleteVery GoodSatisfactoryFair10110
March 201494.0Functionally obsoleteVery GoodSatisfactorySatisfactory10110
April 201294.0Functionally obsoleteVery GoodSatisfactorySatisfactory10110
June 201094.0Not deficientVery GoodSatisfactorySatisfactory10110
December 200794.0Not deficientVery GoodSatisfactorySatisfactory10110
December 200594.0Not deficientExcellentSatisfactorySatisfactory10110
October 200396.0Not deficientExcellentSatisfactorySatisfactory10110
November 200193.0Not deficientPoorSatisfactorySatisfactory10110
January 200168.0Structurally deficientFairSatisfactoryPoor10110
September 199936.0Structurally deficientFairSatisfactoryCritical10110
November 199849.0Structurally deficientFairGoodSerious10110
December 199749.0Structurally deficientFairGoodSerious10110
September 199654.0Structurally deficientSatisfactoryGoodSerious10110
September 199471.0Structurally deficientGoodVery GoodPoor10110
July 199286.0Not deficientGoodVery GoodFair10110
June 199086.0Not deficientGoodVery GoodFair10110