America's Defense Industrial Base Is Under Construction: Inside the $3+ Billion Solid Rocket Motor Building Wave

For years, defense analysts warned that the United States lacked the manufacturing capacity to sustain a high-intensity conflict. Artillery shells, precision missiles, and solid rocket motors — the propulsion systems at the heart of nearly every modern weapon system — were being produced at peacetime rates while global demand surged. Now, billions of dollars in construction have begun to address that gap, and the projects underway in 2026 represent one of the most concentrated periods of defense manufacturing facility construction since World War II.

L3Harris: $1.27 Billion in Virginia

In April 2026, L3Harris Technologies announced plans to spend $1.27 billion expanding its solid rocket motor manufacturing campus in Orange County, Virginia. The investment, confirmed by Virginia Governor Abigail Spanberger and announced April 15, will establish the company's Virginia Advanced Propulsion Facilities — a multi-building complex that will more than double manufacturing space at a site that already hosts 256,000 square feet of production space.

"The reason we wanted the $1 billion as an anchor investor is to give us confidence that we can invest today," L3Harris Chairman and CEO Christopher Kubasik said at the company's investor day in February 2026. The Department of Defense has pledged $1 billion in support of L3Harris' new Missile Solutions business — the entity that will operate the Virginia campus — with that commitment convertible to stock when the business pursues an initial public offering in the second half of 2026.

The new campus will include dozens of new facilities totaling hundreds of thousands of square feet — the company did not disclose a specific total — and will create more than 350 jobs over five years. The facilities will provide mixing, grinding, casting, and final assembly for solid rocket motor production under multiple DoD programs, including propulsion for Javelin anti-tank missiles and Stinger air defense systems. L3Harris described its construction partners as working "with a sense of urgency to get these facilities vertical and new production lines humming," according to Virginia Business.

The Orange County announcement builds on a May 2025 groundbreaking at the same site, where L3Harris broke ground on five new robotically-enabled SRM facilities under a Defense Production Act Title III cooperative agreement. Those five facilities — focused on the Javelin program — are expected to be completed in late 2026 with production starting in early 2027. The new $1.27 billion Virginia Advanced Propulsion Facilities project is a separate, larger undertaking scheduled to follow.

Virginia's SRM Cluster: Three Companies, $2+ Billion

L3Harris is not building alone in Virginia. Italy-based Avio announced in December 2025 that it had selected Hurt, Pittsylvania County, Virginia for a $537.6 million solid rocket motor manufacturing facility. The facility will produce SRMs for defense, tactical propulsion, missile systems, and commercial space applications. Virginia approved an incentive package providing up to $97.7 million in special appropriations based on an investment of more than $500 million and the creation of more than 1,000 jobs, according to Avio's February 23, 2026 announcement. Virginia Governor Spanberger also signed legislation establishing the Solid Rocket Motor Manufacturing Grant Fund providing Avio grant installments of up to $6 million per fiscal year from 2027 to 2046.

A third defense manufacturer, specialty chemical maker Solstice Advanced Materials, announced plans in January 2026 to spend over $220 million expanding production of ballistic fiber — a material used in body armor, vehicle protection systems, and missile components — at its facility in Colonial Heights, Virginia.

Combined, these three projects represent more than $2 billion in defense-related advanced manufacturing construction in a single state, in a single year. Virginia has deliberately pursued this cluster, using targeted incentives, state manufacturing grant funds, and the state's existing defense industrial heritage to attract investment from multiple companies simultaneously.

Castelion's Project Ranger: 1,000 Acres in New Mexico

Virginia is not alone. In January 2026, Castelion — a California-based defense technology company focused on hypersonic systems — formally broke ground on Project Ranger, a 1,000-acre manufacturing campus in Sandoval County, New Mexico, outside Rio Rancho. The project represents more than $220 million in private investment and is designed to support high-cadence serial production of hypersonic strike systems for the U.S. Army.

"The main goal of the project is to eliminate a key bottleneck in U.S. hypersonic weapons programs, namely the lack of industrial capacity for large-scale production," Castelion CEO Brian Hargis said in the company's January 21, 2026 press release. The campus will include facilities for solid rocket motor manufacturing, static testing, and final assembly of hypersonic weapons. Castelion estimated the project will generate $650 million in economic impact for New Mexico over the next decade and create 300+ high-paying manufacturing jobs.

Construction is phased. The first building was scheduled for completion by summer 2026, with all 21 planned buildings completed by the end of 2026 — an aggressive schedule driven by Army deployment timelines for operational hypersonic weapons systems later this decade.

Federal Investment Backing the Construction Wave

The facilities being built are not speculative. The Defense Production Act Title III program — which provides cooperative agreements to expand domestic production capacity — has committed $191 million in nine investments to the solid rocket motor industrial base since December 2024, according to a May 15, 2026 Department of War release. In fiscal year 2026 alone, the DPA Purchases Office has made investments totaling $482.6 million across multiple defense manufacturing programs. These commitments give manufacturers the demand certainty needed to justify billions in facility construction — and give lenders and investors confidence that production revenues will follow when the buildings are complete.

The broader defense industrial base is also expanding SRM capacity at L3Harris's Camden, Arkansas campus, where the company broke ground in November 2025 on a "nearly half a billion dollar" expansion involving over 20 new buildings. L3Harris is simultaneously constructing or upgrading more than 60 facilities nationwide related to solid rocket motor and propulsion production.

What This Means for Construction

Defense manufacturing construction is specialized work. These facilities require controlled environments, structural systems capable of withstanding energetic material testing, blast separation between production cells, specialized ventilation and fire suppression, and security infrastructure that civilian industrial facilities do not require. General contractors with DoD facility experience, security clearances, and familiarity with defense construction standards are in high demand as this wave accelerates. For the broader industry, the defense industrial base buildout is providing a meaningful demand floor for nonresidential construction as the semiconductor megaproject wave cools.