Ada County Highway District

[1] ACHD covers the entirety of Ada County, including the six cities within it, and it is responsible for short-range planning, construction, maintenance and improvements to Ada County's local roads and bridges (excluding state highways like Eagle Road, Interstate 84, the Connector and overpasses, which are operated by the Idaho Transportation Department).

This infrastructure includes facilities that range from multi-lane, arterial streets with a computerized signal system, to narrow, farm-to-market roadways.

[2] This system includes several cul-de-sacs that increase operation and maintenance costs, adding to the tax burden placed upon the citizens of Ada County.

This poorly-connected road system increases operating costs for other public services such as utilities, trash collection, and school busing.

The director is responsible for managing five departments: Administration, Engineering, Maintenance and Operations, Traffic, and Planning and Development, which combined total nearly 300 employees.