Long Valley West No. 2 is a privately owned earth dam located in Napa, California, along the Tr Pope Creek. Completed in 1982, this dam stands at a height of 35 feet and has a storage capacity of 177 acre-feet, primarily used for irrigation and water supply purposes. With a low hazard potential and a satisfactory condition assessment, this dam has been regulated by the California Department of Water Resources (DWR) under the Safety of Dams program, ensuring regular inspections and enforcement to maintain its safety and integrity.

Situated within the San Francisco District, Long Valley West No. 2 serves as a crucial water resource infrastructure, supporting the local agricultural activities in the region. The dam's design and construction reflect its importance in providing reliable water supply to the surrounding areas. Despite its modest size, the dam plays a significant role in managing water resources and ensuring sustainable usage for irrigation and other purposes. With state jurisdiction and regulatory oversight, Long Valley West No. 2 exemplifies the commitment to maintaining water infrastructure standards and safety in California.

As a key component of the water supply system in Napa County, Long Valley West No. 2 has been integral in meeting the agricultural and irrigation needs of the region. With a history of satisfactory condition assessments and regular inspections, this dam showcases the importance of proactive management and maintenance in ensuring the resilience of water infrastructure against the backdrop of changing climate conditions. Its strategic location and purposeful design underscore the essential role that dams play in supporting water resource management efforts and climate resilience initiatives in California.