Geiger Brothers builds new records vault at Pike County site

Geiger Brothers has completed modifications to the existing X-720 Maintenance Building to provide for a new records retention vault at the U. S. Department of Energy’s Portsmouth Gaseous Diffusion Plant.

The construction was done under contract to Fluor/Babcock & Wilcox Portsmouth (FBP) as part of infrastructure and miscellaneous project work being done in preparation for and as part of plant decontamination & decommissioning (D&D)

Plant drawings and documents dating back to the 1950s that are being moved to the new vault were housed in the core of the X-100 Administration Building, which will be demolished as part of the plant D&D project.

The project involved a combination of demolition, new construction, and system reconfiguration.  Part of the challenge was to isolate existing utilities (i.e., electricity, heating, ventilation and air conditioning, and water lines) to ensure the new vault is independent from the rest of the X-720 Building.

The scope of work to construct the new vault specifically included old system and fixture demolition; modifications to an existing restroom; piping modification to existing utilities and new installations; electrical modifications to existing systems and installation of new power panels; installation of a new alternate exterior electrical power feeder and switching; modifications to the existing fire suppression system and new installation; concrete foundations and construction of fire-rated concrete block including fire stops and fire doors; installation of new HVAC units/systems; installation of security doors, locks, hardware and wiring raceways; installation of the fire the alarm system; fire stop penetration sealing; installation of hardened offices and cubicles including walls, wiring and fixtures, finishes, furniture, ceilings and final trim; and completion of final acceptance testing of all systems and installations.

(Photos/content are the property of Fluor-B&W Portsmouth LLC and the U.S. Department of Energy and are being published with the permission of Fluor-B&W.  These photos/content may not be re-printed without the approval of Fluor-B&W.)

Under contract to FBP, Geiger Brothers personnel poured concrete foundations that would bear the fire-rated concrete block walls and doors of the new records vault in the existing X-720 Building.  The new vault replaces the existing core of the X-100 Administration Building, which will be removed as part of plant decommissioning.

Under contract to FBP, Geiger Brothers personnel poured concrete foundations that would bear the fire-rated concrete block walls and doors of the new records vault in the existing X-720 Building. The new vault replaces the existing core of the X-100 Administration Building, which will be removed as part of plant decommissioning.

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