Vertical Lineshaft Pumps for Big Cliff Powerhouse

The U.S. Army Corps of Engineers is issuing a Request for Quote (RFQ) for two vertical lineshaft pumps for the Big Cliff Powerhouse at Detroit Dam. This is a 100% Total Small Business Set-Aside under NAICS Code 333914. The pumps must meet specific technical requirements, including a 4" 150# ANSI 16.5 Flange compatible outlet, a flow rate of 75 GPM at 70ft head, and a continuously rising pump curve. The form factor should be vertical lineshaft with multistage impellers at the inlet, with a pump height of 45' from inlet to the centerline of the outlet flange. Key material specifications include bronze impellers, cast iron bowls, and 400 series stainless steel for the lineshaft and column pipe sections. The motors should be up to 3.0 hp with a service factor of 1.15 or greater, operating on a 3-phase, 480 V, 60 Hz circuit, at a pump speed of 1800 rpm or less. Inlets must have basket strainers. The pumps will be used to move potentially silty water with temperatures ranging from 39-65 degrees F. Quotes are due by June 5, 2026, and must include specific information such as UEI Number, Cage Code, Contractor Name, payment terms, lead time, and technical capability documentation. The award will be made to the technically acceptable quote with the lowest evaluated price.