Share:

M-28 over SO BR ONTONAGON RIVER

Map

Coordinates:
+46.53473, -89.27625
46°32'05" N, 89°16'35" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:M-28 over SO BR ONTONAGON RIVER
Structure number:000000000008488
Old structure number:66166022000B030 (from 1992 edition)
Location:4.7 MI W OF US-45 (EWEN)
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:106.0 ft. [32.3 m]
Total length:310.1 ft. [94.5 m]
Roadway width between curbs:47.9 ft. [14.6 m]
Deck width edge-to-edge:51.2 ft. [15.6 m]
Owner:State Highway Agency [01]
Year built:1990
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 22.5 / HS 25 [9]
Number of main spans:3
Main spans material:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: August 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:2,398 [as of 2007]
Truck traffic:11% of total traffic
Deck condition:Good [7 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:Superior to present desirable criteria [9]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Bridge foundations determined to be stable for assessed or calculated scour condition. [5]
Sufficiency rating:92.7
Recommended work:Bridge deck replacement with only incidental widening. [37]

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2018GoodGoodVery GoodGood239892.7
August 2016GoodGoodVery GoodGood239892.7
August 2014GoodGoodVery GoodGood239892.7
August 2012GoodGoodVery GoodGood239892.7
August 2010GoodGoodVery GoodGood239891.6
August 2008GoodGoodVery GoodGood239891.6
August 2006GoodGoodVery GoodGood274190.6
August 2004GoodGoodVery GoodGood160094.0
August 2002GoodGoodVery GoodGood160094.0
August 2000GoodGoodVery GoodGood160094.0
September 1998GoodGoodVery GoodGood160094.0
September 1996GoodGoodVery GoodGood160089.0
September 1994GoodVery GoodExcellentExcellent274085.5
October 1992GoodGoodExcellentExcellent274085.5
September 1991GoodExcellentVery GoodExcellent274085.5

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
ElementUnitsQuantity1-Good2-Fair3-Poor4-Serious
Superstructure
Prestressed Concrete Girder/Beamlinear ft.2,4802,478200
Deck
Reinforced Concrete Decksq. ft.15,81015,70011000
Concrete Protective Coatingsq. ft.15,81011,0674,74300
Substructure
Reinforced Concrete Columneach66000
Reinforced Concrete Abutmentlinear ft.158148640
Reinforced Concrete Pier Caplinear ft.102102000
Bearings
Elastomeric Bearingeach4848000
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.6205507000