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M-68 over RAINY RIVER

Map

Coordinates:
+45.35749, -84.16904
45°21'27" N, 84°10'09" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:M-68 over RAINY RIVER
Structure number:000000000008952
Old structure number:71171021000B010 (from 1992 edition)
Location:4.0 MI E OF CHEBOYGAN COL
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:40.0 ft. [12.2 m]
Total length:117.8 ft. [35.9 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:33.1 ft. [10.1 m]
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:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: May 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:3,382 [as of 2007]
Truck traffic:3% 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:Meets minimum tolerable limits to be left in place as is [4]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Equal to present minimum criteria [6]
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 is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:79.4

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2017FairFairGoodSatisfactory338279.4
August 2015FairFairGoodSatisfactory338279.4
August 2013FairFairGoodSatisfactory338279.4
August 2011FairSatisfactoryGoodSatisfactory338280.4
August 2009FairSatisfactoryGoodSatisfactory338280.4
August 2007FairSatisfactoryGoodSatisfactory362880.2
August 2005FairSatisfactoryGoodSatisfactory362880.2
August 2003FairSatisfactoryGoodSatisfactory320080.6
October 2001FairSatisfactoryGoodSatisfactory320080.6
November 1999FairSatisfactoryGoodSatisfactory320080.6
October 1997FairSatisfactoryGoodSatisfactory320078.6
August 1995FairSatisfactoryGoodGood310078.7
July 1993FairSatisfactoryGoodGood310078.7
April 1991GoodGoodGoodGood310078.7