+39.65863, -86.88347
39°39'31" N, 86°53'00" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:DUNBAR Rd over BIG WALNUT Creek
Structure number:6700091
Location:00.50 W of CR 125 W
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:86.0 ft. [26.2 m]
Total length:174.9 ft. [53.3 m]
Roadway width between curbs:14.4 ft. [4.4 m]
Deck width edge-to-edge:16.1 ft. [4.9 m]
Vertical clearance above deck:12.1 ft. [3.7 m]
Owner:County Highway Agency [02]
Year built:1880
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
Number of main spans:2
Main spans material:Wood or timber [7]
Main spans design:Truss - Thru [10]
Deck type:Wood or Timber [8]
Wearing surface:Wood or Timber [7]

Latest Available Inspection: March 2018

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:1,363 [as of 2017]
Truck traffic:1% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Poor [4 out of 9]
Structural appraisal:Meets minimum tolerable limits to be left in place as is [4]
Deck geometry appraisal:Basically intolerable requiring high priority of replacement [2]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Basically intolerable requiring high priority of corrrective action [3]
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 with "unknown" foundation that has not been evaluated for scour. [U]
Sufficiency rating:18.0
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$1,467,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2018PoorSatisfactoryFairPoor136318.0
March 2016PoorSatisfactoryFairPoor132018.1
March 2015PoorSatisfactoryFairPoor132018.1
April 2013FairSatisfactoryFairFair123935.1
March 2011FairGoodFairFair123935.1
March 2009FairGoodFairFair123934.9
February 2009PoorPoorFairFair120028.9
March 2007PoorPoorFairFair117528.9
February 2005PoorSatisfactoryPoorFair11611.0
March 2003PoorSatisfactoryPoorFair11191.0
June 2000PoorSatisfactoryPoorFair10241.0
December 1998PoorSatisfactoryPoorFair10241.0
June 1996FairGoodGoodSatisfactory97029.1
March 1994FairGoodGoodSatisfactory50030.5
December 1991FairGoodGoodSatisfactory50025.6
January 1990GoodGoodGoodGood50028.1