Directions to Knife River Corporation – Northwest Directions to Knife River Corporation – Northwest Search | Advanced Search | New Members | Coupons and Discounts | All Categories Real Estate & Construction >> ROCK Knife River Corporation – Northwest 21880 SW Farmington Rd.Beaverton, OR 97007 | map (503) 944-3500 Visit Site Get directions to: Knife River Corporation – Northwest , 21880 SW Farmington Rd., Beaverton OR Get directions from: Click to Print This Page If your business isn't here, contact us today to get listed!