459th Avenue over Big Sioux River


+44.70387, -97.02680
44°42'14" N, 97°01'36" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:459th Avenue over Big Sioux River
Structure number:000000029230069
Location:1.9S of Castlewood
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:82.0 ft. [25.0 m]
Total length:233.9 ft. [71.3 m]
Roadway width between curbs:32.2 ft. [9.8 m]
Deck width edge-to-edge:34.1 ft. [10.4 m]
Owner:County Highway Agency [02]
Year built:2018
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Number of main spans:3
Main spans material:Prestressed concrete [5]
Main spans design:Stringer/Multi-beam or girder [02]
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: October 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:375 [as of 2016]
Truck traffic:2% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
Deck geometry appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Superior to present desirable criteria [9]
Channel protection:Banks are protected or well vegetated. River control devices such as spur dikes and embankment protection are not required or are in a stable condition. [8]
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
October 2018GoodVery GoodVery GoodVery Good375100.0
June 2016PoorPoorFairPoor37537.8
May 2014PoorSeriousFairPoor37563.6
June 2012PoorSeriousSatisfactoryPoor37545.0
August 2010PoorSeriousSatisfactoryPoor37545.0
September 2008PoorSeriousSatisfactoryPoor37545.0
August 2006PoorSeriousSatisfactoryFair37557.1
July 2004PoorPoorSatisfactorySatisfactory37569.1
August 2002FairSatisfactorySatisfactorySatisfactory37594.1
July 2000FairSatisfactorySatisfactorySatisfactory37594.0
September 1998FairSatisfactorySatisfactorySatisfactory37594.0
August 1996FairFairSatisfactoryVery Good37593.0
August 1994FairFairSatisfactoryVery Good37592.8
September 1992PoorPoorSatisfactoryVery Good37583.8
June 1990PoorPoorSatisfactoryVery Good37583.8