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M-102 8 MILE RD over I-75

Map

Coordinates:
+42.44708, -83.09496
42°26'49" N, 83°05'42" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:M-102 8 MILE RD over I-75
Structure number:000000000011850
Old structure number:82182252000S100 (from 1992 edition)
Location:IN DETROIT OVER I-75 SERV
Purpose:Carries highway over highway
Route classification:Other Principal Arterial (Urban) [14]
Length of largest span:134.8 ft. [41.1 m]
Total length:1068.3 ft. [325.6 m]
Roadway width between curbs:86.0 ft. [26.2 m]
Deck width edge-to-edge:92.2 ft. [28.1 m]
Vertical clearance below bridge:20.0 ft. [6.1 m]
Owner:State Highway Agency [01]
Year built:1969
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:11
Main spans material:Steel continuous [4]
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: March 2017

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:68,056 [as of 2007]
Truck traffic:5% of total traffic
Deck condition:Poor [4 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Poor [4 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
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:73.0 tons [66.4 metric tons]
Inventory rating:43.9 tons [39.9 metric tons]
Sufficiency rating:68.0
Recommended work:Bridge deck replacement with only incidental widening. [37]

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
March 201768.0PoorPoorSatisfactoryPoorSD68056
March 201668.0PoorPoorSatisfactoryPoorSD68056
March 201568.0PoorPoorSatisfactoryPoorSD68056
April 201397.0FairFairSatisfactorySatisfactory-68056
April 201286.0FairFairGoodFair-68056
July 201087.0FairSatisfactoryGoodFair-68056
June 200987.0FairSatisfactoryGoodFair-68056
July 200798.0FairSatisfactoryGoodSatisfactory-76362
July 200598.0FairSatisfactoryGoodSatisfactory-76362
March 200471.0PoorSatisfactoryGoodPoorSD63000
December 200271.0PoorSatisfactoryGoodPoorSD63000
September 200171.0PoorSatisfactoryGoodPoorSD63000
June 200071.0PoorSatisfactoryGoodPoorSD63000
September 199871.0PoorSatisfactoryGoodPoorSD63000
October 199685.0FairSatisfactoryGoodFair-96200
September 199685.0FairSatisfactoryGoodFair-63000
October 199485.0FairGoodGoodFair-96200
August 199285.0FairGoodGoodFair-96200
July 199085.0FairGoodVery GoodFair-96200

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Superstructure
Steel Girder/Beamlinear ft.10,69910,44925000
Steel Protective Coatingsq. ft.127,966127,966000
Deck
Reinforced Concrete Decksq. ft.98,42156,62130,00011,8000
Superstructure
Steel Pin or Pin & Hangar Assemblyeach3529600
Substructure
Reinforced Concrete Columneach64154180
Reinforced Concrete Abutmentlinear ft.1871622500
Reinforced Concrete Pier Caplinear ft.8305741501006
Joints
Strip Seal Jointlinear ft.3680358100
Pourable Jointlinear ft.18474100100
Bearings
Movable Bearingeach802930201
Fixed Bearingeach60322521
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.4,2722,1361,0681,0680
Reinforced Concrete Bridge Raillinear ft.2,1368541,0682140