459th Avenue over Boswell Diversion Ditch


+44.63709, -97.02703
44°38'14" N, 97°01'37" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:459th Avenue over Boswell Diversion Ditch
Structure number:000000029230115
Location:6.5S of Castlewood
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:40.0 ft. [12.2 m]
Total length:106.0 ft. [32.3 m]
Roadway width between curbs:24.0 ft. [7.3 m]
Deck width edge-to-edge:28.2 ft. [8.6 m]
Owner:County Highway Agency [02]
Year built:1956
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 13.5 / H 15 [2]
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:Bituminous [6]

Latest Available Inspection: June 2018

Good/Fair/Poor Condition:Fair
Status:Posted for load [P]
Average daily traffic:253 [as of 2016]
Truck traffic:2% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Satisfactory [6 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:Better than present minimum criteria [7]
Roadway alignment appraisal:Better than present minimum criteria [7]
Channel protection:Bank protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
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:52.4

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
June 2018FairSatisfactorySatisfactorySatisfactory25352.4
June 2016FairSatisfactorySatisfactorySatisfactory25375.3
May 2014FairFairSatisfactorySatisfactory25374.3
July 2012FairFairSatisfactorySatisfactory25373.7
September 2010FairFairSatisfactorySatisfactory25373.7
October 2008FairFairSatisfactorySatisfactory25373.7
August 2006FairFairSatisfactorySatisfactory25373.7
July 2004FairSatisfactorySatisfactorySatisfactory25374.7
August 2002FairSatisfactorySatisfactorySatisfactory25374.7
July 2000FairSatisfactorySatisfactorySatisfactory25374.7
September 1998FairSatisfactorySatisfactorySatisfactory25374.7
August 1996FairSatisfactorySatisfactoryVery Good25374.7
July 1994FairSatisfactorySatisfactoryVery Good25373.4
September 1992FairSatisfactorySatisfactoryVery Good25373.4
June 1990FairSatisfactoryGoodVery Good25373.4