Ada County Highway District
Road Closed photo
Road Closed Sign photo
ACHD Group Image
Flagger photo
Grouping of pedestrian and sidewalk Photos
Setting forms for drainage Photo
Bicycle Award and Riders Photo
Commuteride Club Red Photo

  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


This team is responsible for maintaining more than 5,170 lane miles of roadway and more than 810 bridges and large culverts within the ACHD's jurisdiction.

More About Maintenance

ACHD News Blog

Drive Safe. Work Safe. Save Lives: Tips for traveling safely in work zones
Everyone deserves to get home safely. That's why the Ada County Highway District is proud to participate in National Work...

Commissioner Pickering rides along with ACHD's broom crew
Last week, Commissioner Pickering had the opportunity to join ACHD employee, Tom Mercer, for a ride-along on one of our...

Headquarters Facility Closed on 4/15/21
Due to a planned water shut off for nearby utilities work, ACHD Headquarters will be closed on Thursday, April 15th...

ACHD Celebrates 50th Aniversary
The Ada County Highway District is celebrating the 50th Anniversary of its creation. Over the next few months, ACHD will...

Archived News Releases

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We Drive Quality Transportation For All Ada County ~

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