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M-77 over E BR FOX RIVER

Schoolcraft County, Michigan

Map

Coordinates:
+46.40545, -85.94790
46°24'20" N, 85°56'52" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:M-77 over E BR FOX RIVER
Structure number:000000000009688
Old structure number:75175052000B010 (from 1992 edition)
Location:4.1 MI N OF M-28
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:59.7 ft. [18.2 m]
Total length:59.7 ft. [18.2 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:33.1 ft. [10.1 m]
Skew angle:45°
Owner:State Highway Agency [01]
Year built:1953
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Bituminous [6]

Latest Available Inspection: September 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:406 [as of 2007]
Truck traffic:14% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 out of 9]
Structural appraisal:Better than present minimum criteria [7]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present minimum criteria [6]
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 the assessed or calculated scour condition. [8]
Sufficiency rating:93.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2017FairSatisfactoryGoodGood40693.0
September 2015FairSatisfactoryGoodGood40693.0
September 2013FairSatisfactoryGoodGood40693.0
September 2011FairSatisfactoryGoodGood40693.0
September 2009FairSatisfactoryGoodGood40693.0
September 2007FairFairGoodGood60691.5
September 2005FairSatisfactoryGoodGood60692.5
September 2003GoodGoodGoodGood51092.7
September 2001GoodGoodGoodGood51092.7
October 1999GoodGoodGoodGood51097.8
July 1997GoodGoodGoodGood51092.7
August 1995GoodGoodGoodGood50092.7
September 1993GoodGoodGoodGood50092.7
September 1991GoodGoodGoodGood50092.7