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Commission recommends annexation and CUP for Micron expansion, approves electrical yard with conditions
Summary
The commission recommended approval of Micron’s annexation and development-agreement modification (CAR26-6) and approved a conditional use permit (CUP26-12) for an electrical substation and 85–100 ft transmission poles, subject to ACHD-aligned right-of-way dedications and other staff conditions; neighbors raised concerns about secondary access, berm vegetation and fire risk.
The Boise City Planning & Zoning Commission recommended approval of CAR26-6 — the annexation and development-agreement modification to expand Micron Technology’s campus — and approved CUP26-12 for an electrical yard and associated transmission poles, finding the applications consistent with the comprehensive plan and staff’s recommended conditions.
Planning staff presented the proposed annexation of roughly 239.7 acres to the I3 Industrial Technology zone (with airport influence and wildland-urban-interface overlays), and the CUP for an electrical substation plus 14 transmission poles ranging roughly 85–100 feet in height. Staff noted the annexation area is designated Planned Community on the comp plan, is contiguous to city limits, and is adjacent to existing Idaho Power transmission corridors — a location staff said is suitable for an electrical yard. Staff also called out a 40-foot-high berm already under construction in Ada County to screen development from nearby residential areas and noted ACHD’s June 24 decision that adjusted the master street map; staff recommended approval with a condition to dedicate right of way consistent with ACHD’s alignment.
Micron’s senior director for U.S. expansion planning, Jeff Binford, and Micron project lead Deborah Nelson described the expansion (ID1 under construction; ID2 planned) and said the electrical yard and poles are necessary to service the new facilities. Binford emphasized the company’s broad U.S. investment and said Micron supports staff recommendations and ACHD’s conditions. Nelson explained the application meets CUP criteria, described plans for berms (up to 40 feet high and seeded with county-approved native grasses), gravel and defensible space around substation buildings for fire-safety code compliance, and a network of traffic mitigations and emergency-access arrangements that Micron is coordinating with ACHD and Boise Fire.
Public testimony included broad support for Micron’s expansion from some speakers and requests from developers (Hawkins Companies) and neighbors for stronger obligations regarding a planned secondary access road. Hawkins representatives asked the commission to require Micron to both dedicate right-of-way and construct the portion of the arterial/secondary access on Micron’s land, citing precedent where private developers were required to build planned public roads. Micron replied that it will dedicate right-of-way per ACHD’s alignment and pay impact fees, but that ACHD did not require Micron to build the full connector because Micron does not control all of the necessary right-of-way; construction responsibility rests with whoever ultimately assembles the full corridor, and impact-fee credits will support future construction.
Commissioners discussed pole heights (staff said existing poles range 70–100 ft; new poles are expected to be similar), berm design and vegetation for WUI/fire-resilience, and ACHD’s master street map alignment. After discussion Commissioner Seja moved to recommend approval of CAR26-6 (annexation and DA modification) and to approve CUP26-12 under the staff report’s terms and ACHD conditions; Commissioner Torres seconded and the motion passed on roll call.
The commission’s recommendation will be forwarded to City Council for the annexation and DA modification; the CUP decision is final at the commission level.
