Construction

Find information on construction materials and construction guidance.

Find approved construction materials, submit new materials for approval, or review our materials evaluation and tracking programs.

Find information needed to ensure compliance during the construction of a project.

Zero emission electric vehicle registrations in Washington

increased 192% between 2017 and 2021.

45 projects to improve freight rail structures and freight movement

were underway as of December 31, 2021.

Washington state leveraged $100,000 to secure $27 million

in funding for airport investments in Fiscal Year 2022.