Conditional use · Planning application
Ada County approves 637-acre gravel pit with rock crushing for 20 years
Premier Aggregates, run by Premier LLC, can mine and crush rock across about 637 acres of rural land in three phases through Dec. 11, 2045, then reclaim the site for possible future homes. Conditions include a fire mitigation plan, a 20-foot all-weather fire access road and a state reclamation bond.
From the filing
The application's description as it appears in Ada County's record. See the official record
Premier LLC, doing business as Premier Aggregates, proposes a gravel pit with on-site rock crushing on rural land at 1600 E Aerie Ln near Eagle, on about 637 acres. The pit would be mined in three phases over about 20 years, after which the site would be reclaimed in a way that could support future residential development. County staff recommends approval.
Conditional Use and Master Site Plan application for a gravel pit. The property is located at E Aerie Ln and contains approximately 637 acres in the Rural Residential (RR) District; Section 10, T.5N, R.1E.
Timeline
Dec. 11, 2025
Ada County staff recommended approval
Dec. 11, 2025
Approved
Ada County Planning and Zoning Commission: Approved.
Dec. 11, 2025
Public hearing: Ada County Planning and Zoning Commission
Dec. 3, 2025
Document added: Staff report (Planning and Zoning Commission, Dec 11, 2025)
Dec. 3, 2025
Document added: Findings (Planning and Zoning Commission, Dec 11, 2025)
Oct. 1, 2025
Application filed
Documents
Staff reports
- Download Staff report for conditional use and master site plan, gravel pit
Ada County planning staff report recommending approval, with conditions, for a three-phase gravel pit with onsite rock crushing, expected to run about 20 years.
Dec. 3, 2025 · 103 pages · 21.8 MB · Staff Report
Decisions
- Download Findings of fact, conclusions of law and order
Planning and Zoning Commission decision on a conditional use application for a gravel pit with accessory rock crushing, covering procedural history, project description and findings.
Dec. 3, 2025 · 14 pages · 335 KB · Findings