Vol2_21R0015_Resource_Plans_Part2.pdf

This document outlines a federal contract opportunity for construction work at the McNary Dam. The contract involves rehabilitating the dam's 45 intake gates and associated hydraulic systems, replacing the 15kV and 2,500V copper isophase bus systems with new aluminum systems rated for higher amperage, and replacing or upgrading other electrical and control equipment. Major work includes rehabilitating intake gates; providing new hydraulic cylinders, support beams, and control systems; replacing the hydraulic power unit and piping; replacing isophase bus from generators to transformer banks; replacing synchronizing potential transformer cubicles; upgrading disconnect switches; and performing testing and commissioning. The period of performance is from December 2021 to May 2030 to minimize power generation outages. The contract value is estimated between $25-100 million and will be fixed price. The solicitation response date will be provided in documents posted to Beta.sam.gov in June 2021. A site visit will be offered approximately two weeks later.