Sworinger Reservoir, located in Lassen, California, is a privately owned dam constructed in 1961 by the Natural Resources Conservation Service. With a primary purpose of flood risk reduction, this Earth-type dam stands at 35 feet in height and spans 1055 feet in length, providing a storage capacity of 4050 acre-feet. Situated along the Tr Silver Creek, Sworinger Reservoir plays a crucial role in irrigation and water supply for the surrounding area, making it a vital resource for the community of Bare Ranch.

Despite its satisfactory condition assessment and high hazard potential, Sworinger has been regulated, permitted, inspected, and enforced by the California Department of Water Resources (DWR) under the Safety of Dams program. The dam's last inspection was conducted in April 2020, with an inspection frequency set at one year. Even though emergency action preparedness and risk assessment details are currently lacking, Sworinger Reservoir remains a key infrastructure for managing water resources and climate-related challenges in the region. Its strategic location and role in flood control highlight its importance for both local water management and environmental sustainability efforts.