Pocket Substation Rebuild Project

The Sacramento Municipal Utility District (SMUD) is initiating the Pocket Substation Rebuild Project to construct and operate the new Meadowview Substation in Sacramento, California. This project involves replacing the existing Pocket Substation with a new 230 kV facility on a vacant SMUD-owned parcel at 3250 Gardendale Road. The new substation will step down voltage from 230 kV transmission lines to 69 kV subtransmission voltage. The scope of work includes the installation of five new transmission poles, the repainting or replacement of four existing poles, and the reconstruction of electrical lines for grid integration. Additionally, the project features a comprehensive stormwater management system consisting of an underground drainpipe system and a detention basin to manage runoff from 2.3 acres of non-permeable surfaces. Construction is anticipated to begin in the second half of 2027, with commissioning and energization expected in spring 2030. The decommissioning of the old Pocket Substation is scheduled to start in the second half of 2030 and conclude by early 2031. The total project duration is estimated at three years. Key requirements include compliance with the 2025 CALGreen Code for waste management and the National Electrical Safety Code for LED lighting. Security measures specify a ten-foot concrete block or security fence around the perimeter. All personnel performing ground-disturbing work must undergo cultural resources awareness training. The project is subject to environmental review under CEQA and NEPA, with oversight from agencies including Caltrans, the City of Sacramento, and the Central Valley RWQCB.