Utility Infrastructure

The Sunnyside MP 23.7 Reservoir project was a critical infrastructure development aimed at enhancing water storage capacity. This 25-acre earth dam, constructed off-stream of the Yakima River, addresses the pressing requirement for reliable water supply management. Key features of the project included increasing the reservoir capacity to 500 acre-feet, equivalent to 163 million gallons, through the extensive excavation of 700,000 cubic yards of earth and new dam embankment utilizing 300,000 cubic yards of material. An intricate underdrain system extending 11,000 feet was installed, accompanied by a high-quality liner to ensure efficient water management and reservoir functionality.