Ada County Highway District
Painting roadway Photo
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Staff working on Signal Control box
Public Information Meeting
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  Project Information

Going to the public earlier in the potential project process creates opportunities for residents to learn about and weigh in on current and future roadway projects. ACHD believes this will help build safer, smarter and more efficient roadways.

Projects and Open Houses

  All About Traffic

The Ada County Highway District's Traffic Division is responsible for planning, designing and managing efficient traffic flow and traffic safety throughout Ada County.



More About Traffic

  Maintenance

This team is responsible for maintaining more than 4,866 lane miles of roadway and more than 766 bridges and large culverts within the ACHD's jurisdiction.



More About Maintenance

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