ROSA PARKS (12TH) over I-75


+42.33314, -83.07301
42°19'59" 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: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: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 2017

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:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
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]
Sufficiency rating:95.2

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2017FairFairGoodSatisfactory927095.2
May 2015FairFairGoodGood927095.2
May 2013FairFairGoodGood927095.2
May 2011FairFairGoodGood927095.7
May 2009FairFairGoodGood927092.7
July 2007FairFairGoodGood927092.7
August 2005FairFairGoodGood927092.7
August 2003FairFairGoodGood927092.7
August 2001FairFairGoodGood927092.6
May 2000FairFairGoodGood927092.6
September 1999FairFairGoodGood927092.6
August 1998PoorSeriousFairCritical927028.2
June 1997FairFairSatisfactoryFair927084.4
August 1994PoorPoorSatisfactoryGood927093.5
July 1992PoorPoorGoodGood927093.5
June 1990PoorPoorGoodSatisfactory927093.5

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.4,1374,0578000
Steel Pin or Pin & Hangar Assemblyeach56381800
Reinforced Concrete Columneach3630510
Reinforced Concrete Abutmentlinear ft.1771176000
Reinforced Concrete Pier Caplinear ft.4464093070
Corrugated or Orthotropic Decksq. ft.25,32225,322000
Strip Seal Jointlinear ft.177017700
Compression Jointlinear ft.88286000
Other Jointlinear ft.285002850
Movable Bearingeach56451100
Fixed Bearingeach4234800
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.57046510050