This contract involves the design‑build upgrade of the draft‑tube gate cylinder and its associated hydraulic power unit for Rock Island Powerhouse Unit 2. The work includes removal of existing equipment, fabrication, delivery, and installation of a new cylinder and hydraulic power unit, integration with existing powerhouse systems, testing, commissioning, and any required civil or structural modifications at the Columbia River facility. The project was procured through an open competition (RFQ/RFP 20‑14) with four Washington‑based bidders, and the award was ultimately made to Northbank Civil and Marine Inc. for an amount of $477,660. The agency overseeing the effort is the Chelan‑Puget Sound Power Authority, a public utility serving Chelan County, WA.
• Scope: Mechanical‑hydraulic equipment upgrade (draft‑tube gate cylinder, hydraulic power unit) for a hydro‑electric powerhouse.
• Procurement: Open competition, multiple bidders, award to a single vendor.
• Value: Awarded contract value $477,660 (ballpark estimate for the overall project $7 million).
• Key contacts: Minh Dang (agency), phone (509) 661‑4322, email [email protected].