Oak Ridge Gaseous Diffusion Plant (K-25)

Aerial View of Oak Ridge Gaseous Diffusion Plant (K-25)

Oak Ridge, Tennessee 1943-1987

Located on the southwestern end of the Oak Ridge Reservation in Tennessee, the K-25 plant enriched uranium through gaseous diffusion to separate uranium-235 from uranium-238. Gaseous diffusion was a process that provided uranium for the Hiroshima weapon (Little Boy). Beginning in 1943 and completed in early 1945, the K-25 plant employed 12,000 workers and at its peak, it contained five uranium enrichment facilities. K-25 was the prototype for other Oak Ridge plants such as those at Paducah and Portsmouth.

Did you work at K-25?


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800 S. Gay Street
Suite 700, Office #718
Knoxville, TN 37929