April 09, 2026

UPF tunnel milestone reached at Y-12

By Sarah Salem

Crews at the Y-12 National Security Complex have completed final concrete placement for a tunnel that will connect major sections of the Uranium Processing Facility (UPF’s) enriched uranium mission.
The project—known as the Highly Enriched Uranium Materials…

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Nuclear Security & Deterrence Monitor
Nuclear Security & Deterrence Monitor brings you timely, accurate news and information on the activities of the U.S. Nuclear Security Administration, including weapons complex, weapons dismantlement, nuclear deterrence, the weapons laboratories and nonproliferation.
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