Upper San Fernando Dam, located in Los Angeles, California, serves as a crucial flood risk reduction structure along the San Fernando Creek. Built in 1921, this earth dam stands at a height of 82 feet and spans 1,740 feet in length, with a storage capacity of 1,848 acre-feet. Despite its age, the dam has been well-maintained, with a satisfactory condition assessment as of September 2017 and a low hazard potential.

Managed by local government authorities, Upper San Fernando Dam is regulated, permitted, inspected, and enforced by the California Department of Water Resources (DWR) and the Safety of Dams agency. The primary purpose of the dam is flood risk reduction, although it also contributes to water supply management in the region. With a history of effective risk management practices and emergency preparedness, including regular inspections and a designated emergency action plan, Upper San Fernando Dam stands as a reliable structure safeguarding the surrounding area from potential flooding events. For water resource and climate enthusiasts, this dam represents a significant infrastructure piece in California's water management system, highlighting the importance of proactive maintenance and monitoring in ensuring community safety and resilience.