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510TH ST over WEST FORK LITTLE SIOUX

Map

Coordinates:
+42.77882, -95.75906
42°46'44" N, 95°45'33" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:510TH ST over WEST FORK LITTLE SIOUX
Structure number:000000000109330
Location:092422401
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:27.9 ft. [8.5 m]
Total length:29.9 ft. [9.1 m]
Roadway width between curbs:17.7 ft. [5.4 m]
Deck width edge-to-edge:18.0 ft. [5.5 m]
Owner:County Highway Agency [02]
Year built:1917
Historic significance:Bridge is possibly eligible for the National Register of Historic Places [3]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Gravel [8]

Latest Available Inspection: August 2017

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:20 [as of 2011]
Deck condition:Poor [4 out of 9]
Superstructure condition:Fair [5 out of 9]
Substructure condition:Poor [4 out of 9]
Structural appraisal:Basically intolerable requiring high priority of replacement [2]
Deck geometry appraisal:Basically intolerable requiring high priority of corrrective action [3]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Better than present minimum criteria [7]
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 assessed or calculated scour condition. [5]
Sufficiency rating:29.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2017PoorPoorFairPoor2029.0
August 2015PoorPoorFairPoor2029.0
June 2013PoorPoorFairPoor2055.8
September 2011PoorFairSatisfactoryPoor2057.8
August 2009PoorFairSatisfactoryPoor2057.5
May 2007FairGoodGoodFair2068.3
May 2005FairGoodGoodFair2068.3
August 2003FairGoodGoodFair2068.3
August 2001FairGoodGoodFair2068.2
August 1999FairGoodGoodFair2068.2
August 1997FairGoodGoodFair2068.2
April 1995FairGoodGoodFair2068.4
August 1993FairGoodGoodFair2068.7
August 1991FairGoodGoodFair2068.7