Crushed and Broken Limestone Mining and Quarrying

The NAICS code 212312 for Crushed and Broken Limestone Mining and Quarrying covers the extraction, processing, and supply of limestone and related aggregate materials for construction, infrastructure, and maintenance purposes. This category encompasses businesses that quarry, crush, screen, and distribute various grades of limestone, including road base, riprap, dense grade aggregate, and other stone products. The materials are critical for infrastructure development, road construction, flood control, and land management projects across multiple sectors.

Federal contract awards under this NAICS code demonstrate consistent procurement of limestone and aggregate materials by multiple federal agencies, particularly the Department of the Interior (Fish and Wildlife Service), Department of Defense (Army), and Army Corps of Engineers. Awards typically range from $10,000 to $2,900,000, with most contracts being firm fixed-price purchase orders or delivery orders. Frequent contractors include Willard Quarries, American Classic Construction, Crowley Holdings, and Grarok LLC. Most awards are set aside for small businesses, with common set-aside types including total small business, HUBZone, and 8(a) designations. Performance locations frequently include military installations, national wildlife refuges, and other federal lands across states like Louisiana, Missouri, New York, and Florida.

Recent federal contract opportunities under this NAICS code primarily seek limestone, aggregate, and riprap materials for infrastructure maintenance and construction projects. Solicitations include requirements from the U.S. Fish and Wildlife Service for limestone delivery to national wildlife refuges in Louisiana, Texas, and Minnesota, and the Department of Defense seeking aggregate materials for military installations in Kentucky, North Carolina, and Oklahoma. Most opportunities are set aside for small businesses, with typical quantities ranging from 634 to 4,700 tons of material. The procurement methods include requests for quotation (RFQs) under Federal Acquisition Regulation (FAR) Parts 12 and 13, with evaluation criteria focusing on price, technical capability, and delivery schedule.