Fuel cycle plants at this site, as listed in the IAEA Nuclear Fuel Cycle Facilities Database: what each plant does, its scale and design capacity, the years it operated, its current status and who operates it.
1 facility: 1 decommissioning.
Facility
Type
Scale
Design Capacity
Operated
Status
Operator
Oak Ridge K-25, Y-12
Uranium Enrichment
Commercial
8500 MTSWU/year
1945–1985
Decommissioning
Exxon Coal and Minerals Company
Source: IAEA Nuclear Fuel Cycle Facilities Database (NFCFDB), as of 2026-10-13.
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Per diem covers lodging and meals & incidental expenses (M&IE) for government and contractor travel near this facility. Rates are from GSA for FY 2027.
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Interactive satellite map showing the facility's geographic location. Marker color indicates current status: green for online, red for offline, orange for reduced power. Click the header to open in Google Maps satellite view.
35.932, -84.3941
Location & Contact
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Physical address, phone number, and website for this facility. Use the directions link to get driving directions via Google Maps.
Community ratings from NukeWorker members. Vote to share your experience working at this facility. Score uses a Bayesian average that accounts for vote count — facilities with few votes are pulled toward the fleet average, so rankings reflect confidence, not just raw percentages.
Written by NukeWorker from public records: facts that do not change. Operator, status and capacity come from the live data elsewhere on this page. Sources: Wikipedia: Oak Ridge Gaseous Diffusion Plant.
The Oak Ridge K-25 site (later the East Tennessee Technology Park) is at Oak Ridge, Tennessee, on the former Clinton Engineer Works of the Manhattan Project. K-25 was the codename for the project to enrich uranium by gaseous diffusion.
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Work on the main facility area began on October 20, 1943. The four-story main process building was completed in 1944 with about 5.26 million square feet of floor space. Production began in February 1945, and the first product went to the Y-12 calutrons in March 1945. Gaseous diffusion ceased on August 27, 1985. The site was renamed the Oak Ridge K-25 Site in 1989 and the East Tennessee Technology Park in 1996. Demolition of the main K-25 building was completed by 2014.
