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N12 over STREAM

Map

Coordinates:
+42.83500, -98.58333
42°50'06" N, 98°34'60" W

Facts

Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:N12 over STREAM
Structure number:S012 13020
Location:0S BRISTOW
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:18.0 ft. [5.5 m]
Total length:23.0 ft. [7.0 m]
Skew angle:40°
Owner:State Highway Agency [01]
Year built:1935
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Main span material:Concrete [1]
Main span design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: March 2015

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:750 [as of 2012]
Truck traffic:16% 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:Bank is beginning to slump. River control devices and embankment protection have widespread minor damage. There is minor stream bed movement evident. Debris is restricting the channel slightly. [6]
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:86.5

Previous Inspections

DateSuff. RatingConditionCulvert ConditionSD/FOADT
March 201586.5Fair6 out of 10-750
March 201387.7Fair6 out of 10-750
March 201187.3Fair6 out of 10-785
March 200987.3Fair6 out of 10-785
March 200799.9Fair6 out of 10-685
March 200599.9Fair6 out of 10-785
July 200399.9Fair6 out of 10-765
February 200199.9Fair6 out of 10-830
June 199999.9Fair6 out of 10-895
June 199782.9Fair6 out of 10-825
July 199580.9-N out of 10-800
June 199385.9-N out of 10-730

Element Data

Source: National Bridge Elements dataset, 2016 edition. This feature is experimental.
ElementUnitsQuantity1. Good2. Fair3. Poor4. Serious
Culvert
Reinforced Concrete Culvertlinear ft.26131300