Wine Lake, located in Napa, California, is a privately owned earth dam completed in 1953 with a primary purpose of water supply for irrigation and other uses. The dam stands at 29 feet tall with a hydraulic height of 24.5 feet and a length of 620 feet, creating a reservoir with a storage capacity of 310 acre-feet. The dam is regulated and inspected by the California Department of Water Resources and the Safety of Dams agency, ensuring its safety and compliance with state regulations.

The high hazard potential of Wine Lake highlights the importance of its satisfactory condition assessment, last conducted in September 2017. Despite its age, the dam remains structurally sound and equipped with emergency action plans, though the last inspection in August 2020 underscores the ongoing vigilance required to manage risks associated with its operation. With a drainage area of 0.4 square miles and a spillway type not specified, the dam plays a crucial role in water management for the region, particularly during periods of high discharge.

Managed by the Natural Resources Conservation Service, Wine Lake serves as a vital water source for the Cuttings Wharf community and surrounding areas, supporting agricultural activities and ensuring water supply reliability. With its strategic location on Tr Carneros Creek and proximity to the Sacramento District, the dam's role in water resource management and climate resilience underscores the need for continued monitoring and maintenance to safeguard its operations and mitigate potential risks in the face of changing environmental conditions.