Tetra Tech has been selected as lead design engineer as part of the Kuney Construction and J.F. Brennan team for the Progressive Design-Build Hydropower Dam Spillway Modernization Project for Chelan County Public Utility District (PUD) in Washington State, US.
Under the multi-year contract, Tetra Tech will provide planning, assessment, engineering and construction services to support the development of new spillway infrastructure at Rock Island Dam and Rocky Reach Dam on the Columbia River.
The company said its engineers, scientists and technical specialists will work with Chelan County PUD and the project team to improve the operational reliability and safety of the two hydroelectric facilities. The scope of work includes infrastructure condition assessments, structural, mechanical and electrical analyses, spillway gate replacement, gate auto-hoists and controls, concrete rehabilitation, seismic studies, risk assessments, value engineering and design development.
Tetra Tech said it will apply its in-house design capabilities and hydropower expertise to develop resilient spillway infrastructure for both dams.
“Chelan County Public Utility District owns and operates the second largest nonfederal, publicly owned hydroelectric generating system in the nation,” said Roger Argus, Tetra Tech CEO. “Tetra Tech is pleased to use our Leading with Science® approach and high-end hydropower expertise to improve the safety and operational reliability of this critical infrastructure and support Chelan County PUD in providing a safe, resilient power supply for their customers.”
