+45.31876, -85.25867
45°19'08" N, 85°15'31" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US-31 over PINE RIVER
Structure number:000000000001471
Old structure number:15115012000B010 (from 1992 edition)
Purpose:Carries highway and pedestrian walkway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:110.9 ft. [33.8 m]
Total length:223.4 ft. [68.1 m]
Roadway width between curbs:44.0 ft. [13.4 m]
Deck width edge-to-edge:57.7 ft. [17.6 m]
Owner:State Highway Agency [01]
Year built:1949
Year reconstructed:1992
Historic significance:Bridge is on the National Register of Historic Places [1]
Design load:M 18 / H 20 [4]
Main span material:Steel [3]
Main span design:Movable - Bascule [16]
Deck type:Open Grating [3]
Wearing surface:Other [9]

Latest Available Inspection: May 2018

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:13,275 [as of 2016]
Truck traffic:3% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Satisfactory [6 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Better than present minimum criteria [7]
Roadway alignment appraisal:Better than present minimum criteria [7]
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]
Pier/abutment protection:In place and functioning [2]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:48.8
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
May 2018FairSatisfactoryFairSatisfactory1327548.8
July 2017FairSatisfactorySatisfactorySatisfactory1327559.8
June 2016FairSatisfactorySatisfactorySatisfactory1589659.8
May 2015FairGoodSatisfactorySatisfactory1589659.8
May 2014FairGoodSatisfactorySatisfactory1589659.8
September 2013FairGoodGoodSatisfactory1589659.8
May 2012FairGoodGoodSatisfactory1589659.7
April 2011FairGoodGoodSatisfactory1589659.7
April 2009FairGoodGoodSatisfactory1589659.7
October 2008FairGoodGoodSatisfactory1589659.7
October 2007FairGoodGoodSatisfactory1371659.7
October 2006FairGoodGoodSatisfactory1371659.7
August 2005GoodGoodGoodGood1371659.7
October 2004GoodGoodGoodGood1200059.7
October 2003GoodGoodGoodGood1200059.7
October 2002GoodGoodGoodGood1200059.7
October 2001GoodGoodGoodGood1200059.7
September 2000GoodGoodGoodGood1200059.7
June 1999GoodVery GoodGoodGood1200059.7
May 1997GoodGoodGoodGood1200059.7
May 1996GoodGoodGoodGood1200059.7
October 1995GoodVery GoodVery GoodGood1350059.5
October 1993FairSatisfactorySatisfactoryGood1350059.5
May 1991PoorFairPoorGood1150037.4

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.1,3131,053238220
Steel Protective Coatingsq. ft.20,00018,4001,0006000
Steel Stringerlinear ft.451442900
Steel Protective Coatingsq. ft.4,5004,4554500
Reinforced Concrete Decksq. ft.7,6457,6103500
Wearing Surfacessq. ft.5,8265,822400
Concrete Protective Coatingsq. ft.5,8265,826000
Steel Floor Beamlinear ft.5701023361320
Steel Protective Coatingsq. ft.12,00010,5608406000
Reinforced Concrete Pier Walllinear ft.4483549400
Reinforced Concrete Abutmentlinear ft.1501291290
Open Grid Decksq. ft.4,1004,100000
Steel Protective Coatingsq. ft.21,00021,000000
Strip Seal Jointlinear ft.115011500
Pourable Jointlinear ft.115115000
Compression Jointlinear ft.115115000
Assembly without Seal Jointlinear ft.173168050
Movable Bearingeach80404
Steel Protective Coatingsq. ft.20010100
Fixed Bearingeach2222000
Steel Protective Coatingsq. ft.110106400
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.445445000
Steel Protective Coatingsq. ft.19,13519,135000