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OLD M-107 over UNION RIVER

Ontonagon County, Michigan

Map

Coordinates:
+46.81834, -89.61927
46°49'06" N, 89°37'09" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:OLD M-107 over UNION RIVER
Structure number:000000000008508
Old structure number:66266061000B010 (from 1992 edition)
Location:2.5 MI W OF SILVER CITY
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:74.8 ft. [22.8 m]
Total length:74.8 ft. [22.8 m]
Roadway width between curbs:40.0 ft. [12.2 m]
Deck width edge-to-edge:42.3 ft. [12.9 m]
Owner:County Highway Agency [02]
Year built:1976
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 18 / H 20 [4]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: October 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:831 [as of 2007]
Truck traffic:5% of total traffic
Deck condition:Fair [5 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Equal to present minimum criteria [6]
Deck geometry appraisal:Equal to present desirable criteria [8]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:92.5

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2017FairFairGoodSatisfactory83192.5
November 2015FairFairGoodSatisfactory83192.5
November 2013FairFairVery GoodVery Good83186.2
November 2011FairSatisfactoryVery GoodVery Good83187.2
November 2009FairSatisfactoryVery GoodVery Good83193.6
December 2008GoodGoodVery GoodVery Good83193.6