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

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

ACHD Pothole Days to start this week
The Ada County Highway District's annual Pothole Days begins Tuesday, April 6th. Every year ACHD runs this event to encourage...

City of Meridian proposes community gathering place on downtown street
The Ada County Highway District is assisting the City of Meridian in repurposing a portion of a downtown street to...

ACHD begins measuring bicycle and pedestrian performance
The Ada County Highway District has begun an initiative begin measuring pedestrian and bicycle performance. Last Wednesday (Jan. 13), ACHD...

Archived News Releases

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