DRAFT_B2_03.02_MSS_B016_Expansion_100pct Combined_Plans.pdf

This file is a combined architectural and engineering plan document for the Master Substation Annex Building expansion project at SLAC National Accelerator Laboratory. The plans depict the design specifications and layout for a new Master Substation Building (B017S) to be constructed within the SLAC Master Substation Yard, adjacent to the existing Building B016 electrical control center. The document contains detailed construction drawings and specifications for the building envelope, structural systems, mechanical and electrical installations, and site integration requirements necessary to support new medium-voltage switchgear and related utility infrastructure upgrades.

The expansion is part of SLAC's Critical Utilities Infrastructure Revitalization (CUIR) Project, a Department of Energy Office of Science-funded initiative to modernize utility systems originally installed in the 1960s. General contractors responding to the associated Sources Sought Notice (SLAC_RFP_368509) should reference these plans to understand the scope of construction work required, including building construction, installation of medium-voltage switchgears provided by SLAC, and integration with existing electrical power systems. The formal RFP solicitation will be issued following the sources sought phase, with this draft documentation serving as the basis for proposal preparation and cost estimation by interested contractors.