Share:

US-12 over I-75 NB

Map

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

Facts

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)
Location:IN DETROIT
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 2016

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:Very Good [8 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 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, 2018 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Steel Girder/Beamlinear ft.8,7598,6619800
Deck
Reinforced Concrete Decksq. ft.273,199272,76843100
Superstructure
Steel Pin or Pin & Hangar Assemblyeach32161600
Substructure
Reinforced Concrete Columneach2417700
Reinforced Concrete Abutmentlinear ft.1,0991,0207900
Reinforced Concrete Pier Caplinear ft.1,09996898330
Joints
Strip Seal Jointlinear ft.1,8501,066330751
Pourable Jointlinear ft.1,0991,0336600
Bearings
Movable Bearingeach3232000
Fixed Bearingeach3232000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.1,5031,503000
Reinforced Concrete Bridge Raillinear ft.1,50284665600