+42.27431, -85.08118
42°16'28" N, 85°04'52" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:M-311 (11 MILE RD) over KALAMAZOO RIVER
Structure number:000000000001322
Old structure number:13113016000B020 (from 1992 edition)
Location:1.8 MI S OF I-94
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:54.8 ft. [16.7 m]
Total length:109.9 ft. [33.5 m]
Roadway width between curbs:25.6 ft. [7.8 m]
Deck width edge-to-edge:31.2 ft. [9.5 m]
Owner:State Highway Agency [01]
Year built:1959
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 13.5 / H 15 [2]
Number of main spans:2
Main spans material:Prestressed concrete [5]
Main spans design:Box beam or girders - Multiple [05]
Deck type:Not applicable [N]
Wearing surface:Bituminous [6]

Latest Available Inspection: July 2018

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:2,342 [as of 2007]
Truck traffic:2% of total traffic
Deck condition:Serious [3 out of 9]
Superstructure condition:Serious [3 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Basically intolerable requiring high priority of corrrective action [3]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Bank protection is being eroded. River control devices and/or embankment have major damage. Trees and rush restrict the channel. [5]
Scour condition:Bridge is scour critical; bridge foundations determined to be unstable. [3]
Sufficiency rating:24.4

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2018PoorSeriousSeriousSatisfactory234224.4
July 2017PoorSeriousSeriousSatisfactory234224.4
July 2016PoorSeriousSeriousSatisfactory234224.4
July 2015PoorSeriousSeriousSatisfactory234224.4
July 2014PoorSeriousSeriousSatisfactory234224.4
July 2013FairFairFairSatisfactory234265.9
July 2012FairFairFairSatisfactory234265.9
July 2011FairFairFairSatisfactory234265.9
July 2009FairFairFairSatisfactory234265.9
July 2007Fair-FairSatisfactory512462.9
July 2005FairFairFairSatisfactory512461.8
July 2003FairSatisfactoryFairGood284064.7
August 2001FairSatisfactorySatisfactoryGood284076.1
September 1999FairSatisfactorySatisfactoryGood284076.1