+46.76219, -89.57387
46°45'44" N, 89°34'26" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:M-64 over MINERAL RIVER
Structure number:000000000008465
Old structure number:66166012000B030 (from 1992 edition)
Location:4.6 MI S OF M-107
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:69.9 ft. [21.3 m]
Total length:170.0 ft. [51.8 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:35.1 ft. [10.7 m]
Skew angle:30°
Owner:State Highway Agency [01]
Year built:1954
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:3
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: August 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:948 [as of 2007]
Truck traffic:8% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present minimum criteria [6]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:84.6

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2018FairSatisfactorySatisfactoryGood94884.6
August 2016FairSatisfactoryGoodGood94884.6
August 2014GoodGoodGoodGood94884.6
August 2012GoodGoodGoodGood94884.6
August 2010GoodGoodGoodGood94829.8
August 2008GoodGoodGoodGood94884.6
August 2006GoodGoodGoodGood81584.9
August 2004GoodGoodGoodGood93084.7
August 2002GoodGoodGoodGood93084.7
August 2000GoodGoodGoodGood93084.7
October 1998FairSatisfactorySatisfactoryGood93089.8
October 1996FairSatisfactorySatisfactoryGood93084.7
October 1992FairSatisfactorySatisfactoryGood130081.9
September 1990PoorSatisfactoryPoorFair130053.4