487th Avenue over Flandreau Creek


+44.07444, -96.46550
44°04'28" N, 96°27'56" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:487th Avenue over Flandreau Creek
Structure number:000000051210083
Location:1.7N & 6E of Flandreau
Purpose:Carries highway over waterway
Route classification:Local (Rural) [09]
Length of largest span:56.4 ft. [17.2 m]
Total length:57.4 ft. [17.5 m]
Roadway width between curbs:21.7 ft. [6.6 m]
Deck width edge-to-edge:22.3 ft. [6.8 m]
Owner:County Highway Agency [02]
Year built:1982
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Main span material:Steel [3]
Main span design:Stringer/Multi-beam or girder [02]
Deck type:Wood or Timber [8]
Wearing surface:Wood or Timber [7]

Latest Available Inspection: August 2018

Good/Fair/Poor Condition:Poor
Status:Posted for load [P]
Average daily traffic:15 [as of 2016]
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: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]
Scour condition:Bridge with "unknown" foundation that has not been evaluated for scour. [U]
Sufficiency rating:37.0
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$1,034,000

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
August 2018PoorPoorFairPoor1537.0
August 2016PoorPoorFairFair1549.1
August 2014FairFairFairFair1557.1
August 2012FairSatisfactoryFairFair1540.0
October 2010FairSatisfactoryFairFair1540.0
July 2008FairSatisfactoryFairSatisfactory1540.0
July 2006FairSatisfactoryFairSatisfactory1540.0
July 2004FairSatisfactoryFairSatisfactory1540.0
August 2002FairSatisfactoryFairSatisfactory1540.0
September 2000FairSatisfactoryFairSatisfactory1548.9
September 1998FairSatisfactoryFairSatisfactory1555.5
August 1996GoodGoodGoodGood1565.5
May 1994GoodGoodGoodGood1553.0
July 1992GoodGoodGoodGood1570.5