+43.18392, -98.94594
43°11'02" N, 98°56'45" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:SD1806 over WHETSTONE CK
Structure number:000000027299221
Location:8.0 N JCT US 18
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:79.7 ft. [24.3 m]
Total length:305.1 ft. [93.0 m]
Roadway width between curbs:32.2 ft. [9.8 m]
Deck width edge-to-edge:34.8 ft. [10.6 m]
Owner:State Highway Agency [01]
Year built:1977
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18+Mod / HS 20+Mod [6]
Number of main spans:4
Main spans material:Prestressed concrete continuous [6]
Main spans design:Stringer/Multi-beam or girder [02]
Deck type:Concrete Cast-in-Place [1]
Wearing surface:Low slump Concrete [4]

Latest Available Inspection: November 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:150 [as of 2017]
Truck traffic:18% 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:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present minimum criteria [6]
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]
Scour condition:Countermeasures have been installed to mitigate an existing problem with scour. [7]
Sufficiency rating:99.8

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
November 2017GoodGoodGoodGood15099.8
November 2014GoodGoodGoodGood13099.8
November 2012GoodGoodGoodGood13399.8
November 2010GoodGoodGoodGood15599.8
November 2008GoodGoodVery GoodGood16599.7
February 2005FairSatisfactoryVery GoodGood18598.7
October 2001FairSatisfactoryVery GoodGood21798.7
September 1997GoodVery GoodVery GoodGood23598.6
September 1993GoodVery GoodVery GoodGood25198.6
September 1991GoodVery GoodVery GoodGood6498.9