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COUNTY ROAD 421 over TAHQUAMENON RIVER

Map

Coordinates:
+46.45023, -85.80851
46°27'01" N, 85°48'31" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:COUNTY ROAD 421 over TAHQUAMENON RIVER
Structure number:000000000005924
Old structure number:48200421000B010 (from 1992 edition)
Location:EAGLES NEST CAMP
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:11.8 ft. [3.6 m]
Total length:24.0 ft. [7.3 m]
Roadway width between curbs:15.1 ft. [4.6 m]
Deck width edge-to-edge:15.7 ft. [4.8 m]
Owner:County Highway Agency [02]
Year built:1967
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:2
Main spans material:Steel [3]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Wood or Timber [8]
Wearing surface:Wood or Timber [7]

Latest Available Inspection: October 2018

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:20 [as of 2016]
Deck condition:Good [7 out of 9]
Superstructure condition:Poor [4 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Basically intolerable requiring high priority of corrrective action [3]
Deck geometry appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Equal to present minimum criteria [6]
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 foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:29.6

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
October 2018PoorGoodPoorFair2029.6
October 2017PoorGoodPoorFair2029.6
October 2016PoorGoodPoorFair2029.6
October 2015PoorGoodPoorFair2029.6
October 2014PoorVery GoodPoorFair2029.6
October 2013PoorVery GoodPoorFair2029.6
October 2012PoorVery GoodPoorFair5029.4
October 2011FairVery GoodSatisfactoryFair5031.3
December 2009FairVery GoodSatisfactoryFair5031.3
November 2008FairVery GoodSatisfactoryGood5041.4
October 2007FairVery GoodSatisfactoryGood5041.4
November 2006FairVery GoodSatisfactoryGood5041.4
October 2005FairFairFairGood5030.3
October 2004FairFairFairGood5030.3
January 2004FairFairFairGood5031.6
November 2002FairSatisfactorySatisfactoryGood5042.7
October 2001FairSatisfactorySatisfactoryGood5042.7
September 2000FairSatisfactorySatisfactoryGood5042.7
November 1999FairSatisfactorySatisfactoryGood5042.7
December 1998FairFairSatisfactoryGood5041.7
August 1996FairFairSatisfactoryGood5041.7
September 1994FairSatisfactorySatisfactoryFair5034.8
July 1992PoorFairFairPoor5022.9
January 1990PoorSatisfactoryFairPoor5024.0