The policy mechanism
Opening a new crushed stone or sand-and-gravel quarry in the United States is, in practice, a decade-long federal project. Section 404 of the Clean Water Act requires Army Corps of Engineers permits for any quarry that disturbs wetlands or waterways — a threshold almost no large-scale mine avoids. Layer on EPA air-quality review under the Clean Air Act, state environmental impact studies that federal agencies must coordinate with, and Endangered Species Act consultation, and a realistic permitting horizon runs ten to fourteen years from application to first blast. That timeline is not an accident of bureaucratic sloth; it reflects genuine statutory rigor. But the consequence is structural: every year Washington does not streamline that process is another year the companies that already hold permitted reserves enjoy a supply constraint their government has effectively underwritten.
The United States is in the middle of a multi-decade infrastructure build. The Infrastructure Investment and Jobs Act allocated roughly $550 billion in new federal spending across roads, bridges, water systems, and broadband. Every ton of concrete poured requires aggregate — crushed stone, sand, and gravel — and that aggregate has to come from somewhere near the job site. You cannot ship a ton of limestone profitably across the country. Supply is local. And new local supply is, by federal design, nearly impossible to stand up quickly.