Conditional use · Planning application
Knife River seeks 20-year sand and gravel pit on farmland, denied by county panel
The Canyon County Planning and Zoning Commission denied a conditional use permit on Nov. 20 for a sand and gravel operation on about 59.55 acres of irrigated farmland, which would have included crushing, stockpiling and hauling for up to 20 years.
From the filing
The application's description as it appears in Canyon County's record. See the official record
Knife River Corp. - Mountain West has requested a conditional use permit to run a sand and gravel mine on about 59.55 acres off Centerpoint Rd in Caldwell, Idaho, for up to 20 years. The operation would include digging, crushing, stockpiling, and hauling material off the site, with mining hours of 7 a.m. to 5 p.m., Monday through Saturday. The site would be mined in two phases and reclaimed with a 50-acre water feature.
The applicant, Knife River Corp. – Mountain West, represented by Megan Winter & Joseph Smith, is requesting a Conditional Use Permit to allow a long-term mineral extraction permit to include stockpiling, crushing, staging, and hauling the sand and gravel off the site on approximately 59.55 acres in an “A” (Agricultural) zone for a period not to exceed twenty (20) years. The proposed general hours of operation are 7:00 a.m. to 5:00 p.m., Monday through Saturday. Hauling of materials may take place 24 hours a day, seven days a week, to support construction activities that require nighttime operations.
Timeline
Nov. 20, 2025
Public hearing: Canyon County Planning and Zoning Commission
Nov. 20, 2025
Document added: Findings, Conclusions and Order, Planning and Zoning Commission hearing of Nov 20, 2025
Nov. 20, 2025
Document added: Staff Report, Planning and Zoning Commission hearing of Nov 20, 2025
Nov. 20, 2025
Denied
Canyon County Planning and Zoning Commission: Denied.
May 6, 2025
Application filed
Documents
Staff reports
- Download Staff report for long-term mineral extraction conditional use permit
Planning staff report for the Nov. 20, 2025 Planning and Zoning Commission hearing on a 20-year sand and gravel extraction permit, covering background, criteria, agency and public comment, and conditions.
Nov. 20, 2025 · 151 pages · 29.0 MB · Staff Report
Decisions
- Download Findings of fact, conclusions of law and order
Commission's written decision on a conditional use permit for a 20-year sand and gravel mineral extraction operation on about 59.55 acres in an agricultural zone.
Nov. 20, 2025 · 12 pages · 998 KB · Decision