Potrero is a private dam located in Thousand Oaks, California, along the Triunfo Canyon Cr. Built in 1967, this gravity dam stands at a height of 40 feet and has a storage capacity of 1600 acre-feet. Its primary purpose is flood risk reduction, but it also serves as a water supply source for the region. The dam is under state regulation and inspection by the Department of Water Resources (DWR) for safety compliance.

With a hazard potential rated as high, Potrero has been deemed to be in satisfactory condition as of the last assessment in September 2017. Regular inspections are conducted, with the most recent one taking place in March 2020. In case of emergencies, an Emergency Action Plan (EAP) is in place, and the dam meets safety guidelines. Despite its age, Potrero continues to play a crucial role in managing flood risks and providing essential water supply to the surrounding area, showcasing the importance of infrastructure maintenance and monitoring in the face of climate challenges.