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7 MI RD over I-75

Map

Coordinates:
+42.43248, -83.09465
42°25'57" N, 83°05'41" W
Source: National Bridge Inventory
Information not verified. Use at your own risk.

Facts

Name:7 MI RD over I-75
Structure number:000000000011847
Old structure number:82182252000S070 (from 1992 edition)
Location:IN DETROIT
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:74.8 ft. [22.8 m]
Total length:219.8 ft. [67.0 m]
Roadway width between curbs:47.9 ft. [14.6 m]
Deck width edge-to-edge:70.2 ft. [21.4 m]
Vertical clearance below bridge:14.8 ft. [4.5 m]
Skew angle:
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 / HS 20 [5]
Number of main spans:4
Main spans material:Steel [3]
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 2016

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:16,738 [as of 2010]
Deck condition:Very Good [8 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:Basically intolerable requiring high priority of replacement [2]
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:44.2 tons [40.2 metric tons]
Sufficiency rating:77.0
Recommended work:Bridge deck replacement with only incidental widening. [37]

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
May 201677.0GoodVery GoodGoodGoodFO16738
May 201477.0GoodVery GoodGoodGoodFO16738
May 201277.0GoodVery GoodGoodGoodFO16738
July 201077.0GoodVery GoodGoodGood-19430
August 200877.0GoodVery GoodGoodGood-19430
August 200679.0GoodVery GoodGoodGood-19430
May 200577.0GoodVery GoodVery GoodGood-19430
February 200447.0PoorSeriousPoorPoor-19430
August 200247.0PoorSeriousPoorPoor-19430
November 200147.0PoorSeriousPoorPoorSD19430
May 200132.0PoorSeriousSeriousPoorSD19430
September 199947.0PoorSeriousPoorPoorSD19430
August 199847.0PoorSeriousPoorPoorSD19430
July 199747.0PoorSeriousPoorPoorSD19430
September 199649.0PoorPoorPoorPoorSD19430
October 199450.0PoorSatisfactoryPoorSatisfactorySD19430
August 199250.0PoorSatisfactoryPoorSatisfactorySD19430
July 199050.0PoorSatisfactoryPoorSatisfactorySD19430