+40.09333, -94.59687
40°05'36" N, 94°35'49" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:420 TH ROAD over BR OF THRID FK
Structure number:22841
Old structure number:377R007 038 (from 1992 edition)
Location:S 15 T 61 N R 33 W
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:34.1 ft. [10.4 m]
Total length:36.1 ft. [11.0 m]
Roadway width between curbs:16.1 ft. [4.9 m]
Deck width edge-to-edge:16.1 ft. [4.9 m]
Owner:County Highway Agency [02]
Year built:1950
Year reconstructed:1988
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Wood or Timber [8]
Wearing surface:Wood or Timber [7]

Latest Available Inspection: March 2017

Good/Fair/Poor Condition:Good
Status:Posted for load [P]
Average daily traffic:20 [as of 2017]
Truck traffic:10% of total traffic
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 out of 9]
Substructure condition:Good [7 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 corrrective action [3]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:61.3
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]
Estimated cost of work:$133,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2017GoodGoodGoodGood2061.3
March 2015GoodVery GoodGoodGood2061.3
March 2013GoodGoodVery GoodGood2061.3
February 2011GoodGoodVery GoodGood2061.3
January 2009GoodVery GoodVery GoodGood2061.3
February 2007GoodVery GoodVery GoodGood2061.3
January 2005GoodVery GoodVery GoodVery Good2061.3
February 2003PoorPoorVery GoodVery Good200256.2
February 2001FairFairVery GoodVery Good2060.3
January 1999GoodGoodVery GoodVery Good2061.3
February 1991GoodVery GoodExcellentExcellent3559.0