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I-75 NB OFF RAMP over RR AND MAINT RD

Map

Coordinates:
+42.28298, -83.14804
42°16'59" N, 83°08'53" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:I-75 NB OFF RAMP over RR AND MAINT RD
Structure number:000000000011717
Old structure number:82182194000B015 (from 1992 edition)
Location:IN DETROIT
Purpose:Carries highway over highway and railroad
Route classification:Principal Arterial - Interstate (Urban) [11]
Length of largest span:83.0 ft. [25.3 m]
Total length:533.2 ft. [162.5 m]
Roadway width between curbs:23.0 ft. [7.0 m]
Deck width edge-to-edge:26.2 ft. [8.0 m]
Vertical clearance below bridge:14.4 ft. [4.4 m]
Owner:State Highway Agency [01]
Year built:1967
Year reconstructed:1989
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:12
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 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:13,350 [as of 1982]
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Very Good [8 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:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Scour condition:Bridge not over waterway. [N]
Operating rating:67.3 tons [61.2 metric tons]
Inventory rating:40.3 tons [36.6 metric tons]
Sufficiency rating:91.0

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
May 201591.0FairSatisfactoryVery GoodGood-13350
May 201391.0FairSatisfactoryVery GoodGood-13350
May 201191.0FairSatisfactoryVery GoodGood-13350
May 200991.0FairSatisfactoryGoodSatisfactory-13350
June 200791.0FairSatisfactoryGoodGood-13350
June 200591.0FairSatisfactoryGoodGood-13350
June 200391.0FairSatisfactorySatisfactoryGood-13350
August 200279.4FairSatisfactoryFairGood-13350
August 200079.4FairSatisfactoryFairGood-13350
September 199891.0FairSatisfactorySatisfactoryGood-13350
August 199691.0GoodGoodGoodGood-13350
August 199490.7GoodGoodGoodGood-13350
July 199290.7GoodGoodGoodGood-13350
November 199090.7GoodGoodGoodGood-13350

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.2,4052,405000
Steel Protective Coatingsq. ft.34,79134,791000
Deck
Reinforced Concrete Decksq. ft.15,88815,77875350
Wearing Surfacessq. ft.15,88815,8137500
Superstructure
Steel Pin or Pin & Hangar Assemblyeach4040000
Substructure
Reinforced Concrete Columneach2521400
Reinforced Concrete Abutmentlinear ft.2626000
Reinforced Concrete Pier Caplinear ft.335335000
Joints
Strip Seal Jointlinear ft.155155000
Pourable Jointlinear ft.53270260
Bearings
Movable Bearingeach2824400
Fixed Bearingeach2424000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.1,2011,1710300