Maine's Construction Aggregate Industry Booms Amid Climate Change and Infrastructure Needs, Sparking Local Regulatory Debates
Maine's construction aggregate industry is experiencing a significant boom, with the number of permits for new quarries more than tripling in the past five years compared to the previous decade, according to the Maine Department of Environmental Protection (DEP). This surge is partly attributed to increased demand for materials like riprap to build seawalls and other shoreline protections against climate change-fueled storms, as well as ongoing construction and road maintenance needs. The value of crushed rock, gravel, and sand produced at Maine quarries doubled last year, exceeding $220 million. This growth has led to conflicts in towns like Gorham, where residents are concerned about the impact of quarry expansions, including frequent blasting and potential damage to homes. Municipalities are now considering or adopting more stringent mineral extraction regulations, with some, like Winthrop, implementing restrictions on blast frequency, quarry size, and monitoring requirements. 
