N12 over STREAM


+42.72859, -97.50775
42°43'43" N, 97°30'28" 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]
Operating rating:36.0 tons [32.7 metric tons]
Inventory rating:24.0 tons [21.8 metric tons]
Sufficiency rating:84.7

Previous Inspections

DateSuff. RatingConditionCulvert ConditionSD/FOADT
October 201684.7Fair6 out of 10-1140
October 201484.7Fair6 out of 10-1140
October 201287.1Fair6 out of 10-1290
October 201087.1Fair6 out of 10-1250
September 200887.1Fair6 out of 10-1250
September 200699.8Fair6 out of 10-1045
March 200499.7Fair6 out of 10-1125
September 200299.7Fair6 out of 10-1120
March 200099.7Fair6 out of 10-1115
March 199899.7Fair6 out of 10-1115
April 199697.8Fair6 out of 10-910
March 199497.8Fair6 out of 10-835
March 199283.4Fair6 out of 10-735
February 199083.4Fair6 out of 10-735

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Reinforced Concrete Culvertlinear ft.4843410