Moskowite, located in Napa, California, is a privately owned dam that plays a crucial role in water supply and irrigation in the region. Constructed in 1955, this earth-type dam stands at a height of 50 feet and has a hydraulic height of 44.3 feet. With a storage capacity of 472 acre-feet and a surface area of 29 acres, Moskowite serves as a vital resource for the surrounding area, ensuring water availability for agricultural and residential needs.

Managed by the Natural Resources Conservation Service, Moskowite is regulated by the California Department of Water Resources and undergoes regular inspections to ensure its safety and functionality. Despite its low hazard potential, the dam is maintained in satisfactory condition, with the last assessment conducted in September 2017. The dam's emergency action plan is up to date, and while it has not been modified in recent years, it continues to serve its primary purposes effectively, contributing to the overall water management system in the region.

Situated along the Tr Capell Creek, Moskowite not only provides essential water supply but also contributes to the overall ecological balance of the area. With its strategic location and reliable infrastructure, this dam exemplifies the importance of sustainable water resource management in mitigating the impacts of climate change and ensuring a secure water supply for present and future generations.