N4 over STREAM


+40.30719, -97.70788
40°18'26" N, 97°42'28" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:N4 over STREAM
Structure number:S004 10368
Purpose:Carries highway over waterway
Route classification:Minor Arterial (Rural) [06]
Length of largest span:9.8 ft. [3.0 m]
Total length:24.0 ft. [7.3 m]
Skew angle:30°
Owner:State Highway Agency [01]
Year built:1962
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:2
Main spans material:Concrete [1]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: July 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:770 [as of 2016]
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 protection is in need of minor repairs. River control devices and embankment protection have a little minor damage. Banks and/or channel have minor amounts of drift. [7]
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:82.6

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
July 2017Good7 out of 1077082.6
July 2015Good7 out of 1060083.2
July 2013Good7 out of 1060083.2
July 2011Good7 out of 1072084.3
August 2009Good7 out of 1074584.3
September 2007Good7 out of 1061596.9
August 2005Good7 out of 1073596.8
September 2003Good7 out of 1070096.8
August 2001Good7 out of 1060096.9
October 1999Good7 out of 1067596.8
August 1997Good7 out of 1063096.9
October 1995Good7 out of 1057594.9
August 1993Good7 out of 1054071.6
September 1991Good7 out of 1065580.4

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Culvertlinear ft.1281111520