The Ada County Highway District (ACHD) proudly serves every individual who walks, bikes, rolls, or drives across the more than 5,000 lane miles within Ada County, Idaho. With a strong commitment to public safety and accessibility, ACHD works to ensure that our infrastructure meets the evolving needs of the community. Through ongoing maintenance, new construction projects, and community-driven planning, we strive to create a safe and efficient transportation environment for all residents.

A dedicated team guides our work, and a publicly elected five-member commission, each representing a district within Ada County. We value transparency, community engagement, and professional development, offering district-wide training opportunities and holding regular public hearings to gather feedback on major projects. Whether you're seeking information, exploring career opportunities, or reviewing our policies, ACHD is here to serve with integrity and accountability.