Portsmouth Site Description

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The Portsmouth Gaseous Diffusion Plant

The Portsmouth site is in rural Pike County, Ohio, north of the city of Portsmouth.  It is located on a federal reservation that encompasses 3,777 acres.  More than 2,000 workers are employed at the site, making it one of the largest employment drivers in the region.

Most of the plant buildings are within an approximate 1,000-acre industrialized area that lies within the Perimeter Road. It consists of three operational areas: the gaseous diffusion plant, centrifuge facility, and depleted uranium hexafluoride conversion (DUF6) facility.

The largest of the three areas is the gaseous diffusion plant, which consists of three main process buildings (X-333, X-330, and X-326) housing the gaseous diffusion process equipment, as well as hundreds of supporting facilities. The various support facilities include those needed for feed and transfer operations, maintenance, steam generation, chemical cleaning, decontamination, process heat removal, water supply, water storage, water distribution, electrical power distribution, and administration.

The property outside of Perimeter Road is used for a variety of purposes, including a water treatment plant, sediment ponds, closed landfills, cylinder storage yards, open fields, and forested buffer areas.

Portsmouth Site regional map
The Portsmouth site is located in south central Ohio

PORTSMOUTH SITE TOURS

tour book cover

The United States Department of Energy (DOE) provides opportunities for members of the public to tour the Portsmouth Gaseous Diffusion Plant site on select dates. The bus tour circles the plant’s perimeter with one stop to visit inside the Plant Control Facility, the hub of the gaseous diffusion plant. The tour involves minimal walking, just a short distance from the bus to the building.  Participants must be U.S. citizens 18 years of age or older.

The tours provide a close-up view of the former uranium enrichment facilities before they are addressed under the Decontamination & Decommissioning (D&D) Project, and a unique opportunity to become oriented with the history of the plant, its current activities and its future missions.

For more information or to register for a tour email Jason Lovins at jason.lovins@fbports.com or call (740) 897-2863.