Ada County Highway District proposes higher impact fees under two-service-area draft

Ada County Highway District representative Justin Lucas told the Boise City Council that ACHD’s 2025 Capital Improvement Plan update — and an accompanying public review draft of a revised impact fee program — would raise impact fees countywide and proposes moving from a single service area to a two‑service‑area model for fee collection and project allocation.

Lucas said the draft shows a technical justification for two service areas based on travel patterns and modeling, and he described the effect on common land‑use categories: "For a single family home in the West Service Area, it's approximately $8,900. In the East Service Area, it's approximately $5,300," up from about $3,900 under the current single service‑area structure, he said. He added that a single service area projected under the same model would result in an impact fee of a little over $7,000 per single‑family home.

The change is driven largely by updated project lists and higher construction cost estimates, Lucas said. He described four technical topics the district reviewed — service areas, which project types to include in the CIP, the…