+46.83409, -89.54942
46°50'03" N, 89°32'58" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:M-64 over MINERAL RIVER
Structure number:000000000008468
Old structure number:66166013000B010 (from 1992 edition)
Location:1.0 MI NE OF M-107
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:40.0 ft. [12.2 m]
Total length:80.1 ft. [24.4 m]
Roadway width between curbs:33.1 ft. [10.1 m]
Deck width edge-to-edge:38.4 ft. [11.7 m]
Skew angle:35°
Owner:State Highway Agency [01]
Year built:1941
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Number of main spans:2
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:875 [as of 2013]
Truck traffic:11% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Better than present minimum criteria [7]
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 with "unknown" foundation that has not been evaluated for scour. [U]
Sufficiency rating:81.5
Recommended work:Bridge deck replacement with only incidental widening. [37]
Estimated cost of work:$96,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2018FairGoodFairGood87581.5
August 2016FairGoodFairGood87581.5
August 2014FairGoodFairSatisfactory87581.5
November 2013FairGoodFairSatisfactory87581.5
August 2012PoorSatisfactoryPoorSatisfactory103256.1
August 2010FairSatisfactorySatisfactorySatisfactory103284.5
August 2008FairSatisfactorySatisfactorySatisfactory103284.5
August 2006FairSatisfactorySatisfactorySatisfactory97485.6
August 2004FairSatisfactorySatisfactorySatisfactory93085.7
August 2002FairSatisfactorySatisfactoryGood93085.7
August 2000FairSatisfactoryGoodGood93085.7
October 1998FairSatisfactoryGoodGood93090.8
October 1996FairSatisfactoryGoodGood93083.7
November 1994PoorPoorGoodGood120078.7
September 1992GoodGoodGoodGood120087.9
September 1991FairSatisfactoryGoodGood120087.9