US 50 over HL4 DRAIN


+39.44099, -118.66931
39°26'28" N, 118°40'10" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 50 over HL4 DRAIN
Structure number:B 761
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:6.9 ft. [2.1 m]
Total length:24.0 ft. [7.3 m]
Skew angle:30°
Owner:State Highway Agency [01]
Year built:1959
Historic significance:Bridge is not eligible for the National Register of Historic Places [5]
Design load:MS 18 / HS 20 [5]
Number of main spans:3
Main spans material:Concrete [1]
Main spans design:Culvert [19]
Deck type:Not applicable [N]

Latest Available Inspection: January 2017

Good/Fair/Poor Condition:Good
Status:Open, no restriction [A]
Average daily traffic:1,300 [as of 2014]
Truck traffic:10% of total traffic
Structural appraisal:Better than present minimum criteria [7]
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]
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:90.5
Recommended work:Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Estimated cost of work:$166,000

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
January 2017Good7 out of 10130090.5
January 2015Good7 out of 1097090.4
January 2013Good7 out of 1097090.4
January 2011Good7 out of 1097083.9
January 2009Good7 out of 1097084.0
February 2007Fair6 out of 10112082.6
March 2005Fair6 out of 10130080.9
February 2003Fair6 out of 10100085.7
January 2001Fair6 out of 10112084.6
February 1999Fair6 out of 10112081.6
March 1997Fair6 out of 10147079.0
January 1995Good7 out of 10110084.8
December 1992Good8 out of 10110084.8
December 1990Good8 out of 1091086.2

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Culvertlinear ft.1461210250