N12 over BOW CREEK


+42.72878, -97.14680
42°43'44" N, 97°08'48" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:N12 over BOW CREEK
Structure number:S012 20744
Location:2SE WYNOT
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:107.9 ft. [32.9 m]
Total length:272.7 ft. [83.1 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:38.7 ft. [11.8 m]
Skew angle:30°
Owner:State Highway Agency [01]
Year built:2017
Historic significance:Bridge is eligible for the National Register of Historic Places [2]
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:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: September 2018

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:825 [as of 2018]
Truck traffic:15% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Excellent [9 out of 9]
Substructure condition:Excellent [9 out of 9]
Structural appraisal:Superior to present desirable criteria [9]
Deck geometry appraisal:Better than present minimum criteria [7]
Water adequacy appraisal:Equal to present desirable criteria [8]
Roadway alignment appraisal:Equal to present desirable criteria [8]
Channel protection:There are no noticeable or noteworthy deficiencies which affect the condition of the channel. [9]
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:98.8

Previous Inspections

DateConditionDeckSuperstructureSubstructureADTSuff. Rating
September 2018GoodVery GoodExcellentExcellent82598.8
September 2016FairFairFairSatisfactory87572.9
September 2014FairFairFairSatisfactory87572.9
September 2012FairFairFairSatisfactory90074.6
August 2010FairFairFairSatisfactory94072.6
October 2008FairFairFairSatisfactory94074.6
September 2006FairFairFairGood84574.6
March 2004FairFairFairGood77074.6
September 2002FairFairFairGood49081.4
March 2000FairFairFairGood67581.4
April 1998FairFairFairGood67581.4
March 1996FairFairFairGood58579.4
March 1994FairFairFairGood47578.9
March 1992FairSatisfactorySatisfactoryGood57090.9
March 1990FairSatisfactorySatisfactoryGood57090.9

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Prestressed Concrete Girder/Beamlinear ft.1,3461,346000
Reinforced Concrete Decksq. ft.10,5379,57796000
Reinforced Concrete Pier Walllinear ft.102102000
Steel Abutmentlinear ft.149149000
Steel Pileeach2424000
Reinforced Concrete Pier Caplinear ft.272272000
Compression Jointlinear ft.8989000
Movable Bearingeach1515000
Fixed Bearingeach55000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.54542012500