CAP Rathbun Shoreline Rock Purchase

This federal solicitation (W912DQ26QA068) is a combined synopsis/solicitation issued as a Request for Quote (RFQ) by the U.S. Army Corps of Engineers (USACE), Kansas City District. The acquisition is a 100% small business set-aside under NAICS code 212312 (Crushed and Broken Limestone Mining and Quarrying), with a size standard of 750 employees. The primary objective is to purchase and deliver a total of 67,451 short tons of Corps-approved shoreline riprap rock to four distinct sites at the Rathbun Lake Project in Centerville, Iowa: - Site A Prairie Ridge (11,321 short tons) - Site B1 Prairie Ridge (2,780 short tons) - Site D South Fork (26,930 short tons) - Site E Camp Appanoose (26,420 short tons) Deliveries are to be completed within nine months of the contract award on a Firm-Fixed-Price basis with FOB Destination terms. While not mandatory, prospective offerors are highly encouraged to coordinate and conduct site visits. To be considered for an award, quotes must be submitted electronically in PDF format to Contract Specialist Angella Curran by July 24, 2026, at 12:00 PM Central Time. Submissions must include a completed SF 1449, pricing for all contract line items, and completed forms for related experience and past performance. Evaluation for the contract award will be based on price and other specified factors conforming to the solicitation.

This document outlines Section 35 31 19 of a federal contract specification for Stone Protection, managed by the U.S. Army Corps of Engineers (USACE) Missouri River Project Office. The primary objective is the sourcing, testing, quality assurance, and delivery of durable quarried riprap to protect critical flood control structures. All stone must originate from USACE-approved sources, specifically designated beds at approved quarries, such as Cantera Aggregates LLC in Iowa. Unapproved sources require extensive evaluation testing, including ASTM standards for specific gravity, absorption, freeze-thaw durability, and LA abrasion resistance, at the quarry's expense. Strict quality controls govern stone physical properties, prohibiting materials with excessive microfractures or aspect ratios exceeding 3:1. Furthermore, quarrying operations are excluded between September 15 and April 15 to prevent freeze-thaw damage prior to proper curing. Contractors must establish a 60-ton demonstration stockpile at the source for visual government inspection and deliver representative pre-production reference samples to the designated project sites. Gradation tests must be performed periodically to ensure compliance with the specified 24-inch riprap gradation band. The contract specifies the delivery of 67,451 total tons of stone to four distinct locations: Site A Prairie Ridge (11,321 tons), Site B1 Prairie Ridge (2,780 tons), Site D South Fork (26,930 tons), and Site E Camp Appanoose (26,420 tons). Deliveries must be made by standard end-dumping trucks at a minimum rate of 1,500 tons per day, with weight verified via certified scales and tickets.