180th Street over Trib. to Big Sioux River


+44.77523, -97.04756
44°46'31" N, 97°02'51" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:180th Street over Trib. to Big Sioux River
Structure number:000000029221020
Location:3N & 0.9W of Castlewood
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:9.8 ft. [3.0 m]
Total length:22.0 ft. [6.7 m]
Roadway width between curbs:24.3 ft. [7.4 m]
Deck width edge-to-edge:25.6 ft. [7.8 m]
Owner:County Highway Agency [02]
Year built:1930
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Number of main spans:2
Main spans material:Concrete continuous [2]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: June 2018

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:25 [as of 2016]
Truck traffic:2% of total traffic
Structural appraisal:Basically intolerable requiring high priority of replacement [2]
Deck geometry appraisal:Equal to present minimum criteria [6]
Water adequacy appraisal:Equal to present minimum criteria [6]
Roadway alignment appraisal:Equal to present minimum criteria [6]
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]
Culvert condition:Any condition described in Code 4 but which is excessive in scope. Severe movement or differential setlement of the segments or loss of fill. Holes may exist in walls or slabs. Integral wingwalls nearly severed from culvert. Severe scour or erosion at curtain walls, wingwalls or pipes. Metal culverts have extreme distortion and delection in one section, extensive corrosion, or deep pitting with scattered perforations. [3]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:41.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$434,000

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
June 2018Poor3 out of 102541.0
June 2016Poor3 out of 102541.0
May 2014Poor3 out of 102541.0
June 2012Poor3 out of 102541.0
August 2010Poor4 out of 102541.0
August 2008Poor4 out of 102541.0
August 2006Poor4 out of 102541.0
July 2004Poor4 out of 102541.0
August 2002Poor4 out of 102539.0
July 2000Poor4 out of 102539.0
September 1998Poor3 out of 102539.0
August 1996Poor3 out of 102539.0
July 1994Poor3 out of 102539.0
June 1992Poor3 out of 102539.0
June 1990Poor3 out of 102551.0