US-12 over I-75 NB


+42.33148, -83.08456
42°19'53" N, 83°05'04" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US-12 over I-75 NB
Structure number:000000000011748
Old structure number:82182194000S190 (from 1992 edition)
Purpose:Carries highway and pedestrian walkway over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:107.0 ft. [32.6 m]
Total length:229.0 ft. [69.8 m]
Roadway width between curbs:93.8 ft. [28.6 m]
Deck width edge-to-edge:113.2 ft. [34.5 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:48°
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:3
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 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:13,147 [as of 2007]
Truck traffic:10% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
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]
Sufficiency rating:75.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2018FairGoodSatisfactorySatisfactory1314775.0
May 2016FairVery GoodSatisfactorySatisfactory1314775.0
May 2014FairVery GoodSatisfactorySatisfactory1314775.0
May 2012FairVery GoodSatisfactorySatisfactory1314775.0
June 2010FairVery GoodSatisfactorySatisfactory1314775.0
June 2008FairVery GoodSatisfactorySatisfactory1314775.0
June 2006FairVery GoodSatisfactorySatisfactory1132675.0
June 2004FairSatisfactorySatisfactorySatisfactory1200075.0
June 2002FairVery GoodSatisfactorySatisfactory1200075.0
May 2000FairVery GoodSatisfactorySatisfactory1200075.0
August 1998FairFairFairFair1200062.0
August 1996FairSatisfactoryGoodGood4610063.3
August 1994PoorPoorGoodGood4610060.0
July 1992PoorPoorVery GoodGood4610060.0
June 1990PoorPoorVery GoodGood4610060.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.2,6702,6403000
Reinforced Concrete Decksq. ft.25,38125,3414000
Steel Pin or Pin & Hangar Assemblyeach32161600
Reinforced Concrete Columneach2417700
Reinforced Concrete Abutmentlinear ft.3353112400
Reinforced Concrete Pier Caplinear ft.33529530100
Strip Seal Jointlinear ft.398151124231
Pourable Jointlinear ft.3383182000
Movable Bearingeach3232000
Fixed Bearingeach3232000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.458458000
Reinforced Concrete Bridge Raillinear ft.45825820000