Why industrial builders are running out of people, and why it will not correct on its own.

Manufacturing plant construction reached $220 billion in 2025, up 192% from 2020. Power generation reached $158 billion. Data centers, the segment that gets all the coverage, reached $41 billion, roughly a fifth the size of manufacturing.

Source: U.S. Census Bureau construction spending data, as compiled February 2026.

The industry must attract an estimated 349,000 net new workers in 2026 and 456,000 in 2027. The majority of that demand is attributable to retirement rather than growth in construction demand, which is why the requirement rises again in 2027 even if demand does not. (Associated Builders and Contractors, 2026 workforce shortage model.)

A shortage driven by growth resolves when growth slows. A shortage driven by people leaving the trade does not. The 2027 requirement is larger than the 2026 requirement even under conservative growth assumptions.

Undocumented inflows fell sharply in 2025 while voluntary departures accelerated. The precise effect on the construction workforce has not been quantified, but the direction is not in dispute, and the firms that have never built a legal, documented foreign workforce channel are the ones most exposed to it.

In a study of 532 global capital projects of $100 million or more, cost overruns averaged at least 79% against initial budget and schedule delays averaged 52% against initial timeframes. (McKinsey & Company analysis of 532 global projects ≥$100M, 62% of them megaprojects above $1B, 2022.)

Manpower shortfalls do not appear as a labor line item. They appear as liquidated damages, acceleration costs, overtime absorbed to cover a crew that never arrived, and, eventually, an owner who awards the next package to someone else.

Three moves that do not work for long: matching the job across the street, which buys a worse margin and the same shortfall; moving the scope to a sub who has your problem; and moving the date, which is a conversation with your owner that changes how the next package gets awarded.

Three that do: they underwrite manpower risk at bid rather than at mobilization; they build legal, documented workforce channels before they need them; and they put one accountable owner on the workforce program instead of splitting it across procurement, HR, and counsel.

The legal channels are rationed. H-2B alone is capped at 66,000 visas a year by statute, and allocation runs on a filing window that opens months before mobilization. The constraint is not whether the workers exist. It is whether your program was in the window. Source: U.S. Citizenship and Immigration Services.