Usibelli No. 2 is a privately owned earth dam located in Pope Valley, California, specifically on the Tr Maxwell Cr river. Completed in 1973, this dam serves primarily for water supply purposes such as irrigation and water storage. With a height of 26 feet and a storage capacity of 900 acre-feet, it covers a surface area of 56 acres and has a drainage area of 0.23 square miles. The dam is regulated, inspected, and enforced by the California Department of Water Resources, Safety of Dams division.

Despite its satisfactory condition assessment as of September 2017, Usibelli No. 2 has a high hazard potential, highlighting the importance of regular inspections and maintenance. The dam has a designated emergency action plan (EAP) and a one-year inspection frequency to ensure its safety and functionality. The surrounding area, including Napa County, relies on this dam for crucial water supply needs, making it a vital infrastructure for the region's agricultural and environmental sustainability.

Owned by a private entity, Usibelli No. 2 plays a significant role in water resource management within the San Francisco District. Located in a picturesque setting, this dam not only supports local water supply but also showcases the intersection of engineering, water conservation, and climate resilience. As water resource and climate enthusiasts continue to monitor and advocate for sustainable practices, Usibelli No. 2 stands as a prominent example of infrastructure crucial for supporting communities and ecosystems in an ever-changing climate.