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7 MI RD SB LFT TRN over I-75

Map

Coordinates:
+42.43247, -83.09492
42°25'57" N, 83°05'42" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:7 MI RD SB LFT TRN over I-75
Structure number:000000000011848
Old structure number:82182252000S080 (from 1992 edition)
Location:IN DETROIT
Purpose:Carries highway over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:73.5 ft. [22.4 m]
Total length:216.2 ft. [65.9 m]
Roadway width between curbs:20.7 ft. [6.3 m]
Deck width edge-to-edge:24.0 ft. [7.3 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Owner:State Highway Agency [01]
Year built:1967
Year reconstructed:2003
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:4
Main spans material:Prestressed concrete [5]
Main spans design:Box Beam or girders - Single or Spread [06]
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:Good
Status:Open, no restriction [A]
Average daily traffic:4,900 [as of 2007]
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
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]
Operating rating:73.8 tons [67.1 metric tons]
Inventory rating:43.9 tons [39.9 metric tons]
Sufficiency rating:95.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
May 201695.0GoodVery GoodVery GoodGoodFO4900
May 201494.0GoodVery GoodVery GoodGoodFO4900
May 201294.0GoodVery GoodVery GoodGoodFO4900
July 201094.0GoodVery GoodVery GoodGood-4900
August 200892.0GoodVery GoodVery GoodGood-4900
May 200792.0GoodVery GoodVery GoodGood-4900
May 200594.0GoodVery GoodVery GoodGood-4900
February 200494.0GoodExcellentExcellentGood-4900
June 200249.0PoorPoorFairSerious-4900
September 200149.0PoorPoorFairSeriousSD4900
June 200066.0PoorFairFairPoorSD4900
September 199881.0FairFairFairFair-4900
October 199668.0FairFairGoodFair-4900
September 199681.0FairFairGoodFair-4900
October 199493.0FairSatisfactoryGoodSatisfactory-4900
August 199293.0FairSatisfactoryGoodSatisfactory-4900
July 199094.0FairSatisfactoryGoodSatisfactory-4900