About Us

We are one of the nation’s largest construction materials and contracting businesses. With over 1 billion tons of rock and over 6,000 employees across the western U.S., we are here to meet your construction needs. Knife River builds the roads, bridges and airport runways that connect you with where you want to go. From driveways to highways, our mission is to build strong neighborhoods and build strong communities. Building strong communities doesn’t stop where the pavement ends. We are involved in our communities and also support charitable efforts – with an emphasis on programs for youth, veterans and community betterment. We are proud to be serving Spokane, Spokane County, Spokane Valley, Liberty Lake WA and North Idaho.