230 TH over STREAM


+42.02280, -94.50736
42°01'22" N, 94°30'26" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:230 TH over STREAM
Structure number:000000000162220
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:22.0 ft. [6.7 m]
Total length:22.0 ft. [6.7 m]
Roadway width between curbs:21.7 ft. [6.6 m]
Deck width edge-to-edge:23.0 ft. [7.0 m]
Owner:County Highway Agency [02]
Year built:1957
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:Gravel [8]

Latest Available Inspection: July 2016

Good/Fair/Poor Condition:Poor
Status:Open, no restriction [A]
Average daily traffic:45 [as of 2012]
Deck condition:Good [7 out of 9]
Superstructure condition:Good [7 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:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
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:54.5
Recommended work:Bridge rehabilitation because of general structure deterioration or inadequate strength. [35]

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
July 2016PoorGoodGoodPoor4554.5
July 2014PoorGoodGoodPoor4554.5
July 2012PoorGoodGoodPoor4554.5
April 2010PoorGoodGoodPoor6054.2
May 2008GoodGoodGoodGood6081.2
June 2006FairGoodGoodFair6070.5
June 2004FairGoodGoodFair8069.1
January 2002FairGoodGoodFair8069.1
February 2000GoodGoodGoodVery Good8086.2
February 1998GoodGoodGoodVery Good8081.9
June 1996GoodGoodGoodVery Good8085.9
March 1994GoodVery GoodGoodGood8059.3
June 1991FairSatisfactorySatisfactoryFair8057.3