Development Services
ACHD's Draft 2012 Capital Improvements Plan and Impact Fee Ordinance

The Ada County Highway District Commission approved a new, $856 million capital improvements plan on May 23, 2012 to guide local roadway infrastructure investments over the next two decades.

The plan, or CIP, is the list of improvements needed to serve this growing community, containing 152 road and 91 intersection projects.

Traffic projections, fueled by the comprehensive growth plans of Ada County and its six cities, form the basis for the 20-year program. Each of the land uses -- the new homes, stores and businesses -- creates future vehicle trips on the transportation network. CIP projects will expand the network to serve this growth along with older infrastructure needs.

Projects within the CIP that serve growth are eligible for impact fees, the charges levied on new homes and businesses to help pay for the needed roadway expansion. Idaho law requires that the District create a CIP to outline the future transportation network needs. The amount of impact fees charged on new structures is based directly upon the costs of the transportation projects necessary to serve the anticipated growth throughout the county.

The new impact fee ordinance takes effect on June 25, 2012.

2012 Capital Improvements Plan

Capital Improvements Plan

Impact Fee Ordinance 218

Please direct comments to Gary Inselman, ACHD's impact fee administrator, by e-mail to or by regular mail to 3775 Adams St., Garden City, ID 83714.