+45.21461, -85.01155
45°12'53" N, 85°00'42" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:M-75 over BOYNE RIVER
Structure number:000000000001475
Old structure number:15115071000B010 (from 1992 edition)
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:56.8 ft. [17.3 m]
Total length:56.8 ft. [17.3 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:35.8 ft. [10.9 m]
Skew angle:45°
Owner:State Highway Agency [01]
Year built:1974
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Prestressed concrete [5]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Epoxy Overlay [5]

Latest Available Inspection: August 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:6,546 [as of 2007]
Truck traffic:3% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Very Good [8 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]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:Bank protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Scour condition:Bridge with "unknown" foundation that has not been evaluated for scour. [U]
Sufficiency rating:79.9

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2017FairGoodVery GoodSatisfactory654679.9
August 2015FairGoodVery GoodSatisfactory654680.2
August 2013FairGoodVery GoodSatisfactory654680.2
May 2011FairGoodVery GoodSatisfactory654680.2
May 2009FairGoodVery GoodSatisfactory654680.2
May 2007FairGoodVery GoodSatisfactory790280.1
May 2005FairSatisfactoryVery GoodSatisfactory500082.4
May 2003FairSatisfactoryVery GoodSatisfactory500082.4
June 2001FairSatisfactoryVery GoodSatisfactory500082.4
July 1999FairSatisfactoryVery GoodSatisfactory500082.4
July 1997GoodGoodVery GoodGood500082.4
October 1995GoodGoodVery GoodGood260091.2
October 1993GoodGoodVery GoodGood260091.2
November 1991GoodVery GoodVery GoodGood260091.2