Avalon Fruit Dam 1, located in Sunnyside, Washington along Washout Creek, was completed in 1985 for the primary purpose of irrigation. This private earth dam stands at a hydraulic height of 21 feet, with a length of 360 feet and a storage capacity of 27 acre-feet. The dam is regulated by the Washington Department of Ecology, with regular inspections conducted to ensure its structural integrity and safety.

Despite its fair condition assessment in 2015, Avalon Fruit Dam 1 poses a high hazard potential due to its location and storage capacity. The dam has a normal storage of 25 acre-feet and a maximum discharge of 5 cubic feet per second. With its stone core and soil foundation, the dam plays a crucial role in providing water for agricultural purposes in the Yakima Valley, highlighting the importance of proper maintenance and management to mitigate potential risks and ensure long-term sustainability for water resources in the region.

Congressional District 04, represented by Dan Newhouse, oversees the dam's operations and regulatory framework. With its strategic location and critical role in irrigation, Avalon Fruit Dam 1 serves as a vital infrastructure for water management in the area, emphasizing the need for continued monitoring and upkeep to safeguard water resources and adapt to changing climate conditions.