NAICS Demand Lane
Latest federal solicitations for NAICS 21231.
AI Summary
The U.S. Army Corps of Engineers is conducting market research for stone supply at the Detroit Project Office. This Sources Sought notice aims to identify business capabilities for supplying stone ranging from 8 to 36 inches in diameter, totaling approximately 1.5 tons, with additional options. Responses are due by Jun…
MI
AI Summary
The U.S. Fish and Wildlife Service is soliciting proposals for rip rap services at Hagerman National Wildlife Refuge. This opportunity is categorized under NAICS code 212312 and is not subject to Simplified Acquisition Procedures. Interested bidders should prepare to submit their proposals by the specified deadline.
VA
AI Summary
The Bureau of Land Management is soliciting proposals for the supply of rock aggregate in Roseburg. This opportunity is classified under NAICS code 212319 and is set aside for small businesses. Interested bidders should prepare their proposals accordingly.
OR
AI Summary
The U.S. Fish and Wildlife Service intends to award a sole source contract to Calhoun Quarry, INC. for the delivery of crushed limestone to Two Rivers National Wildlife Refuge. This opportunity is not a solicitation for competitive quotes, and interested parties may submit capability statements to demonstrate their abi…
VA
AI Summary
Solicitation number 1240LT26Q0086 is a Request for Quotation (RFQ) for excavation, drainage, dewatering, and rock crushing services. Quotations are requested as part of a combined synopsis/solicitation. A site visit is scheduled for June 17th, 2026, at 10:00 AM MDT. Interested bidders should refer to the solicitation f…
UT
AI Summary
The Department of Agriculture's Forest Service is seeking a contractor for gravel crushing and development at the Columbine Gravel Pit in Montrose County, Colorado. The project includes excavation, drainage, and stockpiling of aggregate materials. A site visit is scheduled for May 15, 2026. Interested bidders should re…
UT
AI Summary
The U.S. Fish and Wildlife Service is seeking vendors to supply and deliver Florida DOT approved road base, rip rap, and #57 limerock to St. Marks NWR. Materials must originate within 80 miles of the site to prevent invasive species contamination. Vendors must provide a minimum of five trucks per day and submit their p…
VA
AI Summary
The Department of Defense is seeking small business firms for a Sources Sought Notice regarding levee rehabilitation materials for maintenance and repair across five Washington State river basins. The anticipated completion date is 1 October 2026, and responses will inform potential acquisition strategies.
WA
AI Summary
This opportunity is a combined synopsis/solicitation for a Multiple Award BPA for various types of aggregate materials at Ottawa NWR in Oak Harbor, Ohio. Vendors must provide a price schedule for the specified materials and delivery details. Interested parties should email their proposals to the designated contact.
VA
AI Summary
The U.S. Army Corps of Engineers is seeking bids for an emergency procurement of Type 1 River Rock at Missouri River Mile 52.8. This opportunity is a 100% Total Small Business Set-Aside under NAICS 212319. Bidders must provide suitable loading facilities and meet specific durability requirements for the stone. Please r…
MO
How this NAICS code is represented across indexed contract sources.
Stone Mining and Quarrying involves the extraction of dimension stone, crushed and broken stone, riprap, sand, gravel, and clay from the earth. This industry includes operations that quarry stone for use in construction, landscaping, and other applications.
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