Plutonium Pit Production Decades Behind Schedule for Warhead Modernization

The National Nuclear Security Administration (NNSA) is required to produce 80 plutonium pits per year by 2030 to support the W87-1 warhead for the Sentinel ICBM and other modernization programs. As of 2025, Los Alamos National Laboratory has produced its first 'diamond-stamped' pit but is nowhere near the 30-per-year interim target, let alone the 80-per-year goal. The second production site at the Savannah River Site in South Carolina will not have its main plutonium processing facility ready until 2035 at the earliest, with costs potentially exceeding $22 billion. The Government Accountability Office has reported that NNSA has no credible integrated master schedule or comprehensive cost estimate linking the two production sites. This matters because plutonium pits are the fissile cores of nuclear warheads -- the component that actually produces the nuclear yield. Without new pits, the United States cannot produce new warheads, and existing pits in the current stockpile are aging. The W87-1 warhead program, estimated at $15.9 billion, and the W80-4 warhead for the Long-Range Standoff Weapon, at $13 billion, both depend on pit production that does not yet exist at the required scale. Multi-year delays have already forced NNSA to resort to using recycled pits from dismantled warheads for some new weapons -- a stopgap that cannot sustain the full modernization program. The deeper problem is that the United States effectively abandoned large-scale pit production after the Rocky Flats Plant near Denver was shut down in 1989 due to environmental contamination. For over 35 years, the nation has relied on a small number of pits produced at Los Alamos in a facility not designed for mass production. Rebuilding this capability means constructing new facilities, training a specialized workforce in plutonium metallurgy, and navigating environmental regulations and community opposition -- all of which take decades, not years. The structural persistence of this problem reflects a fundamental tension in nuclear weapons policy: political leaders want a modernized deterrent but are unwilling to absorb the decades-long lead times and enormous costs required to rebuild production infrastructure that was dismantled a generation ago. Every administration since the 1990s has acknowledged the pit production gap; none has delivered a solution on schedule or on budget. The result is that the credibility of the entire nuclear modernization program -- estimated at $1.5-2 trillion over 30 years -- rests on an industrial capability that does not yet exist.