• Washington
  • Oregon
  • Idaho

Our Work in the Northwest

CalPortland and its predecessor companies have supplied local aggregates that support the Northwest’s economic and infrastructure growth for more than a century. Today, CalPortland operates more than 40 facilities throughout Washington, Oregon, Alaska, Idaho and British Columbia. Together, these operations provide building materials used to build roads, hospitals, schools and homes in the communities in which we live. Click here to learn about what’s going on in DuPont.