
A new facility for manufacturing nuclear-weapon secondary stages will not be completed until August 2026: eight months later than expected, the head of the National Nuclear Security Administration (NNSA) told Senators Wednesday in a hearing. Bechtel National, under contract to the Bechtel-led site prime Consolidated Nuclear Security, has been building the current incarnation of the Uranium Processing Facility at the Y-12 National Security Complex in Oak Ridge, Tenn., since 2018, following years of design revisions to fit the next-generation plant…