Farmington Pit, operated by Knife River Corporation-Northwest, supplies high-quality crushed and broken traprock for a variety of construction applications. Located in Washington County, OR, with convenient access to I-5 and SR-217 near Beaverton, this surface mine operation ensures efficient delivery to Portland metro area projects. With 33 employees, Farmington Pit provides reliable material sourcing backed by Knife River Corporation's industry experience.
Operator
Knife River Corporation-Northwest
Parent Company
Knife River Corporation
Company Type
Corporation
100
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45.457500, -122.905000
Data Source
Mine Safety and Health Administration (MSHA)
Last updated: 1/30/2026
Portable - see opening, OR
Construction Sand and GravelSantosh Mine Site 70% of time. Remaining 30% split between: Port of Vancouver: 3101 N Gateway Ave Vancouver WA 98660 Blue Lake Mine: 20601 NE Marine Dr Fairview OR 97024 Contact Regional Safety Manager @ 360-544-2846 for exact Sanderling location., OR
Sand, Industrial NECPortable-See opening Notices, OR
Crushed, Broken Stone NECNorth on I-5 to Kuebler Blvd exit 252. Continue on Kuebler Blvd for 2.4 miles to destination on left., OR
Construction Sand and Gravel