N12 over STREAM


+42.72869, -97.50756
42°43'43" N, 97°30'27" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:N12 over STREAM
Structure number:S012 18902
Location:1W CROFTON
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:9.8 ft. [3.0 m]
Total length:22.0 ft. [6.7 m]
Owner:State Highway Agency [01]
Year built:1928
Year reconstructed:1962
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Number of main spans:2
Main spans material:Concrete [1]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: October 2016

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:1,140 [as of 2012]
Truck traffic:7% 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:Deterioration or initial disintegration, minor chloride contamination, cracking with some leaching, or spalls on concrete or masonry walls and slabs. Local minor scouring at curtain walls, wingwalls or pipes. Metal culverts have a smooth curvature, non-symmetrical shape, significant corrosion or moderate pitting. [6]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:84.7

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
October 2016Fair6 out of 10114084.7
October 2014Fair6 out of 10114084.7
October 2012Fair6 out of 10129087.1
October 2010Fair6 out of 10125087.1
September 2008Fair6 out of 10125087.1
September 2006Fair6 out of 10104599.8
March 2004Fair6 out of 10112599.7
September 2002Fair6 out of 10112099.7
March 2000Fair6 out of 10111599.7
March 1998Fair6 out of 10111599.7
April 1996Fair6 out of 1091097.8
March 1994Fair6 out of 1083597.8
March 1992Fair6 out of 1073583.4
February 1990Fair6 out of 1073583.4

Element Data

Source: National Bridge Elements dataset, 2018 edition. This feature is experimental.
Reinforced Concrete Culvertlinear ft.1621431540