+42.82574, -98.47338
42°49'33" N, 98°28'24" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:N12 over PONCA CREEK
Structure number:S012 13604
Location:WCL LYNCH
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:89.9 ft. [27.4 m]
Total length:191.9 ft. [58.5 m]
Roadway width between curbs:36.1 ft. [11.0 m]
Deck width edge-to-edge:38.4 ft. [11.7 m]
Skew angle:20°
Owner:State Highway Agency [01]
Year built:1955
Year reconstructed:1992
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:Monolithic Concrete (concurrently placed with structural deck) [1]

Latest Available Inspection: March 2015

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:595 [as of 2012]
Truck traffic:8% of total traffic
Deck condition:Very Good [8 out of 9]
Superstructure condition:Very Good [8 out of 9]
Substructure condition:Very Good [8 out of 9]
Structural appraisal:Equal to present desirable criteria [8]
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: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]
Pier/abutment protection:Navigation protection not required [1]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Operating rating:80.9 tons [73.5 metric tons]
Inventory rating:47.9 tons [43.5 metric tons]
Sufficiency rating:94.2

Previous Inspections

DateSuff. RatingConditionDeckSuperstructureSubstructureSD/FOADT
March 201594.2GoodVery GoodVery GoodVery Good-595
March 201399.6GoodVery GoodVery GoodVery Good-595
March 201199.6GoodVery GoodExcellentVery Good-660
March 200999.6GoodVery GoodExcellentVery Good-660
March 200799.7GoodVery GoodExcellentVery Good-575
March 200599.6GoodExcellentExcellentVery Good-590
July 200399.6GoodExcellentExcellentVery Good-620
February 200199.6GoodExcellentExcellentVery Good-655
June 199999.5GoodExcellentExcellentVery Good-745
June 199799.6GoodExcellentExcellentVery Good-690
July 199595.6GoodExcellentExcellentExcellent-675
June 199395.6GoodExcellentExcellentExcellent-675
July 199164.4FairSatisfactoryGoodFair-550

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Steel Girder/Beamlinear ft.349349000
Steel Protective Coatingsq. ft.958958000
Reinforced Concrete Decksq. ft.680678200
Reinforced Concrete Columneach44000
Reinforced Concrete Pier Walllinear ft.77000
Steel Abutmentlinear ft.1919000
Steel Protective Coatingsq. ft.99000
Steel Pileeach2419230
Reinforced Concrete Pier Caplinear ft.6767000
Elastomeric Bearingeach2424000
Bridge Rail
Reinforced Concrete Bridge Raillinear ft.116981800