+42.94277, -98.84087
42°56'34" N, 98°50'27" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:N11 over PONCA CREEK
Structure number:S011 18443
Location:1NE BUTTE
Purpose:Carries highway over waterway
Route classification:Major Collector (Rural) [07]
Length of largest span:71.9 ft. [21.9 m]
Total length:188.0 ft. [57.3 m]
Roadway width between curbs:26.2 ft. [8.0 m]
Deck width edge-to-edge:28.5 ft. [8.7 m]
Owner:State Highway Agency [01]
Year built:1945
Year reconstructed:1985
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Steel continuous [4]
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: March 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:450 [as of 2016]
Truck traffic:11% of total traffic
Deck condition:Satisfactory [6 out of 9]
Superstructure condition:Satisfactory [6 out of 9]
Substructure condition:Fair [5 out of 9]
Structural appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Deck geometry appraisal:Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
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 assessed or calculated scour conditions; field review indicates action is required. [4]
Sufficiency rating:78.4
Recommended work:Widening of existing bridge with deck rehabilitation or replacement. [34]

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
March 2017FairSatisfactorySatisfactoryFair45078.4
March 2015FairSatisfactorySatisfactoryFair52078.2
March 2013FairSatisfactorySatisfactoryFair52081.5
March 2011FairSatisfactorySatisfactoryFair45581.4
February 2010FairSatisfactorySatisfactoryFair45581.4
March 2007FairSatisfactoryGoodFair50573.4
March 2005FairSatisfactoryGoodFair41573.4
July 2003FairVery GoodGoodFair47573.4
March 2001FairVery GoodGoodFair45073.4
July 1999FairVery GoodGoodFair58074.3
July 1997FairVery GoodGoodFair65074.3
July 1995FairVery GoodGoodFair55074.4
July 1993FairVery GoodGoodFair41074.5
July 1991GoodVery GoodGoodGood50085.4

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Steel Girder/Beamlinear ft.94990225220
Steel Protective Coatingsq. ft.8,5416,3412,135065
Reinforced Concrete Decksq. ft.5,3305,18015000
Wearing Surfacessq. ft.4,9144,220670240
Steel Pin or Pin & Hangar Assemblyeach105500
Reinforced Concrete Columneach40040
Reinforced Concrete Abutmentlinear ft.89330560
Reinforced Concrete Pier Caplinear ft.5445090
Strip Seal Jointlinear ft.28140140
Compression Jointlinear ft.2828000
Movable Bearingeach1010000
Fixed Bearingeach100640
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.3783681000