ROSA PARKS (12TH) over I-75


+42.33342, -83.07318
42°20'00" N, 83°04'23" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:ROSA PARKS (12TH) over I-75
Structure number:000000000011761
Old structure number:82182195000S020 (from 1992 edition)
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Minor Arterial (Urban) [16]
Length of largest span:63.0 ft. [19.2 m]
Total length:284.8 ft. [86.8 m]
Roadway width between curbs:73.8 ft. [22.5 m]
Deck width edge-to-edge:88.9 ft. [27.1 m]
Vertical clearance below bridge:15.1 ft. [4.6 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:6
Main spans material:Steel continuous [4]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: May 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:9,270 [as of 1978]
Truck traffic:3% of total traffic
Deck condition:Fair [5 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:Equal to present minimum criteria [6]
Underclearances appraisal:Meets minimum tolerable limits to be left in place as is [4]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:59.5 tons [54.1 metric tons]
Inventory rating:34.2 tons [31.1 metric tons]
Sufficiency rating:95.2

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
May 201595.2FairFairGoodGood-9270
May 201395.2FairFairGoodGood-9270
May 201195.7FairFairGoodGood-9270
May 200992.7FairFairGoodGood-9270
July 200792.7FairFairGoodGood-9270
August 200592.7FairFairGoodGood-9270
August 200392.7FairFairGoodGood-9270
August 200192.6FairFairGoodGood-9270
May 200092.6FairFairGoodGood-9270
September 199992.6FairFairGoodGood-9270
August 199828.2PoorSeriousFairCritical-9270
June 199784.4FairFairSatisfactoryFair-9270
August 199493.5PoorPoorSatisfactoryGoodSD9270
July 199293.5PoorPoorGoodGoodSD9270
June 199093.5PoorPoorGoodSatisfactorySD9270