In 1930, William M. Murphy incorporated Central Pre-Mix Concrete Co. in Spokane, Washington and started down an amazing path that helped revolutionize the ever changing construction industry. The first truck-mounted concrete mixers in the Northwest were put into operation by CPM in 1935. From the 1950’s through 1980, concrete operations were opened across the Northwest. In 1981, CPM entered the asphalt paving business by acquiring Inland Asphalt Company, a locally owned company that dates back to 1934. In September of 1997, CPM joined CRH in North America. Today, CPM Development Corporation is one of the largest producers of concrete, aggregates, and asphalt in the Northwest. From the parks you play in to the roads you drive on, you can count on our team to deliver quality products and projects safely, timely, and efficiently.