+39.54579, -116.25982
39°32'45" N, 116°15'35" W


Source: National Bridge Inventory. Information not verified; use at your own risk.
Name:US 50 over SLOUGH CRK
Structure number:B 646
Purpose:Carries highway over waterway
Route classification:Principal Arterial - Other (Rural) [02]
Length of largest span:9.8 ft. [3.0 m]
Total length:32.2 ft. [9.8 m]
Owner:State Highway Agency [01]
Year built:1955
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: August 2017

Good/Fair/Poor Condition:Fair
Status:Open, no restriction [A]
Average daily traffic:700 [as of 2014]
Truck traffic:19% 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]
Culvert condition:Moderate to major deterioration or disintegration, extensive cracking and leaching or spalls on concrete or masonry walls and slabs. Minor settlement or misalignment. Noticeable scouring or erosion at curtain walls, wingwalls or pipes. Metal culverts have significant distortion and deflection in one section, significant corrosion or deep pitting. [5]
Scour condition:Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Sufficiency rating:81.5

Previous Inspections

DateConditionCulvert ConditionADTSuff. Rating
August 2017Fair5 out of 1070081.5
August 2015Fair5 out of 1070081.5
August 2013Fair5 out of 1072079.3
August 2011Fair6 out of 1072085.3
August 2009Fair6 out of 1072085.3
August 2007Fair6 out of 1072085.3
August 2005Fair6 out of 1075085.0
August 2003Fair6 out of 1075085.0
August 2001Fair6 out of 1075088.0
July 1999Fair6 out of 1075085.0
September 1997Good7 out of 1070085.5
June 1995Good7 out of 1077586.2
June 1993Good7 out of 1077586.2
August 1991Good7 out of 1055586.9

Element Data

Source: National Bridge Elements dataset, 2019 edition. This feature is experimental.
Reinforced Concrete Culvertlinear ft.121108940
Bridge Rail
Steel or Aluminum Bridge Raillinear ft.64541000