Located in King County, Washington, the Youngs Lake New Inlet Dam serves as a vital water supply infrastructure built in 1926 along the Tr-Cedar River. Standing at a structural height of 20 feet with a hydraulic height of 18 feet, this earth dam plays a crucial role in storing water for public utility purposes. With a maximum storage capacity of 35,450 acre-feet and a normal storage capacity of 33,760 acre-feet, this dam covers a surface area of 690 acres and serves a drainage area of 2.19 square miles.

Managed by the Washington Department of Ecology, the Youngs Lake New Inlet Dam is classified as a high hazard potential structure but has been assessed to be in satisfactory condition as of June 2019. With state-regulated oversight and regular inspections, this dam is equipped to handle emergencies effectively, although its spillway type and discharge capabilities are not specified. Despite its age, the dam continues to meet water supply demands in the region and ensures the safety and reliability of the water source for the surrounding communities.

The Youngs Lake New Inlet Dam is a key piece of infrastructure in the region's water resource management efforts, providing a lifeline for residents in King County, Washington. With its stone core and soil foundation, the dam has stood the test of time and continues to be a crucial component in the state's water supply system. With its history dating back to the early 20th century, this dam represents a blend of tradition and modern engineering practices, ensuring the sustainable management of water resources in the area for years to come.