Solicitation Amendment W912ES25QA0050002 SF30.pdf

This document is a Solicitation Amendment (SF30) for a U.S. Army Corps of Engineers contract to provide dewatering by-pass services at Orwell Dam near Fergus Falls, Minnesota. The solicitation requires a contractor to install, operate, and maintain a by-pass flow system capable of consistently delivering 80 cubic feet per second (cfs) around the dam control structure during a scheduled dewatering inspection from September 15-19, 2025. Key requirements include providing submersible pumps, a generator, leak-free piping approximately 350 feet long, and coordinating system placement to avoid interfering with bulkhead installation and dam instrumentation. The contractor must submit detailed plans for by-pass system layout, equipment specifications, work schedule, spill control, and safety protocols, with all submittals requiring approval prior to site mobilization.