189th Street over Big Sioux River


+44.64499, -96.99070
44°38'42" N, 96°59'27" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:189th Street over Big Sioux River
Structure number:000000029247110
Location:2W & 1N of Dempster
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:33.5 ft. [10.2 m]
Total length:89.6 ft. [27.3 m]
Roadway width between curbs:27.9 ft. [8.5 m]
Deck width edge-to-edge:30.5 ft. [9.3 m]
Owner:County Highway Agency [02]
Year built:2008
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 22.5 / HS 25 [9]
Number of main spans:3
Main spans material:Concrete continuous [2]
Main spans design:Slab [01]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Integral Concrete (separate non-modified layer of concrete added to structural deck) [2]

Latest Available Inspection: June 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:45 [as of 2016]
Truck traffic:2% 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:Better than present minimum criteria [7]
Deck geometry appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Superior to present desirable criteria [9]
Roadway alignment appraisal:Superior to present desirable criteria [9]
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]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:100.0

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2018GoodGoodGoodGood45100.0
June 2016GoodGoodGoodGood4589.1
May 2014GoodGoodGoodGood4593.3
July 2012GoodGoodGoodGood4593.3
August 2010GoodGoodGoodGood4593.3
November 2008GoodVery GoodVery GoodVery Good4593.3
August 2006PoorFairFairPoor4548.7
July 2004PoorFairFairPoor4548.7
August 2002PoorSatisfactorySatisfactoryPoor4549.7
July 2000PoorFairSatisfactoryPoor4548.7
September 1998PoorFairSatisfactoryPoor4548.7
August 1996PoorGoodFairSerious4540.0
August 1994PoorGoodFairSerious4540.0
September 1992PoorGoodFairSerious4540.0
June 1990PoorGoodFairSerious4540.0