M-28 (9 MILE RD) over I-75


+46.37456, -84.41392
46°22'28" N, 84°24'50" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:M-28 (9 MILE RD) over I-75
Structure number:000000000001581
Old structure number:17117033000S080 (from 1992 edition)
Location:@I-75, M-28 JCT
Purpose:Carries highway over highway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:84.0 ft. [25.6 m]
Total length:231.0 ft. [70.4 m]
Roadway width between curbs:47.9 ft. [14.6 m]
Deck width edge-to-edge:50.2 ft. [15.3 m]
Vertical clearance below bridge:13.1 ft. [4.0 m]
Skew angle:12°
Owner:State Highway Agency [01]
Year built:1963
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:4
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: June 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:2,956 [as of 2007]
Truck traffic:15% of total traffic
Deck condition:Satisfactory [6 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:Superior to present desirable criteria [9]
Underclearances appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Scour condition:Bridge not over waterway. [N]
Sufficiency rating:99.0
Recommended work:Bridge deck replacement with only incidental widening. [37]

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2018FairSatisfactoryGoodSatisfactory295699.0
June 2016FairGoodGoodSatisfactory295699.0
June 2014FairGoodSatisfactorySatisfactory295699.0
June 2012FairGoodGoodSatisfactory295699.0
June 2010FairGoodGoodSatisfactory295699.0
June 2008FairGoodGoodSatisfactory295699.0
June 2006GoodGoodGoodGood140499.0
June 2004GoodGoodGoodGood420099.0
June 2002GoodGoodGoodGood420099.0
June 2000GoodGoodVery GoodGood420099.0
October 1998GoodGoodVery GoodGood420097.0
July 1996FairSatisfactorySatisfactoryGood150097.0
October 1994FairSatisfactoryGoodFair230086.0
July 1992FairSatisfactoryGoodFair230086.0
October 1990FairSatisfactoryGoodFair230086.0

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.2,3102,3001000
Steel Protective Coatingsq. ft.17,00016,830150200
Reinforced Concrete Decksq. ft.11,65011,36328700
Wearing Surfacessq. ft.11,65011,36328700
Concrete Protective Coatingsq. ft.11,65001,16510,4850
Steel Pin or Pin & Hangar Assemblyeach1010000
Reinforced Concrete Columneach126600
Reinforced Concrete Abutmentlinear ft.152146600
Reinforced Concrete Pier Caplinear ft.1541035100
Strip Seal Jointlinear ft.156156000
Pourable Jointlinear ft.102010200
Movable Bearingeach3025500
Fixed Bearingeach4035500
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.46243121100