Ward Lake, located in Susanville, California, is a privately owned reservoir with a primary purpose of water supply for irrigation and domestic use. Constructed in 1889, this earth dam stands at a height of 23 feet and has a storage capacity of 350 acre-feet. The reservoir covers an area of 60 acres and is fed by the Tr Susan River, serving as a crucial water source for the surrounding area.

Managed by the California Department of Water Resources (DWR) under the Safety of Dams program, Ward Lake is regularly inspected and maintained to ensure its structural integrity and safety. With a low hazard potential and a satisfactory condition assessment, the dam provides reliable water storage while mitigating potential risks. Despite its age, Ward Lake continues to play a vital role in water resource management in Lassen County.

As a key component of the local water supply infrastructure, Ward Lake contributes to the sustainability of agricultural activities and community water needs in the region. With its historical significance and ongoing regulatory oversight, this reservoir serves as an essential resource for water conservation and climate resilience efforts in the area.