B950 Utility & Four K-Substations Relocation

SLAC National Accelerator Laboratory

B950 Utility & Four K-Substations Relocation

Comprising three related projects totaling $16 million, Gordon Prill provided construction services for utility improvements at the LCLS.  HVAC and electrical utilities within Building B950 were upgraded and relocated to a new 3,600 sq. ft. mechanical penthouse on the roof to make room for new labs and for code compliance. The new HVAC system included a new 60,000 cfm Air Handling Unit and associated ductwork to the new labs. To provide power for new research labs, we replaced four substations in Linear Accelerator Klystron Gallery Sectors 1 through 10 and all switchboards and motor control centers. Thick foam mats were placed below the cement flooring to prevent water from entering the lower tunnel housing SLAC’s renowned linear accelerator during the rainy season. At Linac-07, upgrades included:

  • Fire alarm control panels
  • Domestic waterline
  • Manway modification to areas of refuge
  • Replacement of an existing stairway


Science & Technology