Hardrock

Interstate Concrete & Asphalt Company was established in 1986 in Coeur d'Alene, Idaho. Interstate has facilities throughout Northern Idaho and Eastern/Central Washington, as well as Hermiston and Boardman, Oregon. The company offers ready-mixed concrete, aggregates, crushed rock & gravel, sand, asphalt, paving, grading, excavation and road construction. Safety, quality, and customer service are company goals every day.

Central Pre-Mix Concrete Co. has been supplying quality ready-mixed concrete, sand and gravel, crushed rock products and construction supplies from locations in Eastern Washington and Northern Idaho since 1930. Central Pre-Mix Concrete Co. continues to have a strong emphasis on integrity, safety, quality, service and innovation. Central Pre-Mix Concrete Co. was established in 1930 by W.M. Murphy in Spokane, WA. The company's mission statement is: We are creating a team of highly skilled people working safely to build long-term relationships with our customers and communities. Integrity, superior quality and exceptional service will continue to be the foundation of our future.