K-25
- Country: USA
- Role: Enrichment
- Status: Decommissioned
- Year: 1945
Overview
The giant gaseous diffusion building at Oak Ridge, for a time the largest building in the world, enriched uranium 235 for the Hiroshima bomb and cold war stockpiles. Shut in 1985 and demolished by 2014, it closed the Manhattan era at the site.
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