Ductile Iron Pipe & Concrete Thrust Block Installation (8" Elbow near Hydrant)

The contract involves replacing an 8-inch elbow on a water line located near a fire hydrant, requiring deep excavation exceeding six feet and the removal of boulders to access and install new infrastructure. The work includes the installation of ductile iron pipe conforming to ANSI A21.11 standards, ensuring durability and compatibility with existing water systems. Following pipe placement, concrete thrust blocks constructed in accordance with ASTM C94/C94M specifications must be poured and allowed a full seven-day curing period before any backfilling operations commence, ensuring structural integrity and load distribution at the elbow joint. All tasks are to be performed with precision to maintain system reliability and public safety given the proximity to a critical water access point. This is a subcontract under a Total Small Business Set-Aside as defined by FAR 19.5, meaning only small businesses are eligible to respond, and the opportunity is managed by the Department of Defense through the agency designation W7NR Uspfo Activity Nyang 109. The solicitation was posted on April 27, 2026, with a firm deadline for responses on May 14, 2026, at 4:00 PM. The place of performance is identified with a ZIP code of 12302, though the specific city and state are not detailed. The NAICS code 237110 classifies this as water and sewer line and related structures construction, emphasizing the civil infrastructure nature of the project. The work requires strict adherence to material and curing standards to ensure long-term performance under high-pressure conditions.