N12 over STREAM


+42.83051, -98.53086
42°49'50" N, 98°31'51" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:N12 over STREAM
Structure number:S012 13299
Location:3W LYNCH
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:9.8 ft. [3.0 m]
Total length:33.1 ft. [10.1 m]
Owner:State Highway Agency [01]
Year built:1946
Year reconstructed:1989
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:M 13.5 / H 15 [2]
Number of main spans:3
Main spans material:Concrete [1]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: March 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:735 [as of 2016]
Truck traffic:10% of total traffic
Structural 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: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]
Culvert condition:Shrinkage cracks, light scaling and insignificant spalling which does not expose reinforcing steel. Insignificant damage caused by drift with no misalignment and not requiring corrective action. Some minor scouring has occured near curtain walls, wingwalls or pipes. Metal culverts have a smooth symmetrical curvature with superficial corrosion and no pitting. [7]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:80.3

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
March 2017Good7 out of 1073580.3
March 2015Good7 out of 1059581.4
March 2013Good7 out of 1059587.4
March 2011Good7 out of 1066087.0
March 2009Good7 out of 1066087.0
March 2007Good7 out of 1057599.7
March 2005Good7 out of 1059099.6
July 2003Good7 out of 1062099.6
February 2001Good7 out of 1065599.6
June 1999Good7 out of 1074599.5
June 1997Good7 out of 1069099.6
July 1995Good7 out of 1067596.6
June 1993Good7 out of 1067586.4
July 1991Good7 out of 1055093.7

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Culvertlinear ft.1951831020