Share:

JOHN R over I-75

Map

Coordinates:
+42.34089, -83.05032
42°20'27" N, 83°03'01" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:JOHN R over I-75
Structure number:000000000011781
Old structure number:82182195000S260 (from 1992 edition)
Location:IN DETROIT
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:85.0 ft. [25.9 m]
Total length:159.8 ft. [48.7 m]
Roadway width between curbs:60.4 ft. [18.4 m]
Deck width edge-to-edge:85.0 ft. [25.9 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Owner:State Highway Agency [01]
Year built:1970
Year reconstructed:1998
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:2
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: May 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:18,000 [as of 1985]
Truck traffic:3% of total traffic
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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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]
Sufficiency rating:80.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2016FairGoodFairSatisfactory1800080.9
May 2014FairGoodFairSatisfactory1800080.9
May 2012FairGoodFairSatisfactory1800080.9
May 2010FairVery GoodFairSatisfactory1800080.9
May 2008FairVery GoodFairSatisfactory1800080.9
May 2006FairGoodFairSatisfactory1800083.0
May 2004FairVery GoodFairSatisfactory1800083.0
May 2002FairVery GoodFairSatisfactory1800083.0
May 2000FairVery GoodFairSatisfactory1800083.0
August 1998PoorPoorFairFair1800076.8
August 1996PoorPoorFairSatisfactory790082.6
August 1994PoorPoorGoodGood790093.7
July 1992FairFairGoodGood790095.8
June 1990FairFairGoodVery Good790095.8