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Ada County Highway District

Public Services / Government Office

3775 Adams St.,
Garden City, ID 83714

(208) 387-6100

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About

Established in 1972 as an independent government entity, the Ada County Highway District (ACHD) is responsible for all short-range planning, construction, maintenance, operations, rehabilitation and improvements to Ada County's urban streets, rural roadways (excluding state highways) and bridges. Geographically, the Districts jurisdiction includes Boise, Eagle, Garden City, Kuna, Meridian, Star and the unincorporated areas of Ada County; it is the only consolidated countywide highway district in the State of Idaho.


The District maintains and operates approximately 2,100 miles of roads and streets in Ada County, with an estimated value of three billion dollars. This infrastructure includes facilities that range from multi-lane, arterial streets with a computerized signal system, to narrow, farm-to-market roadways.


Five Commissioners govern the District. Together, they are responsible for guiding the planning, development and implementation of transportation facilities throughout the county. Elections are held every two years on a rotating basis, and each Commissioner represents a separate subdistrict.

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