Railroad Canyon, located in Lake Elsinore, California, is a significant arch dam on the San Jacinto River, completed in 1928 for the primary purpose of water supply. With a height of 94 feet and a hydraulic height of 65.8 feet, this dam boasts a storage capacity of 11,586 acre-feet and a surface area of 525 acres, serving irrigation and water supply needs in the region. The dam's hazard potential is classified as high, but its condition assessment as of September 2017 was deemed satisfactory, demonstrating its structural integrity and safety measures in place.

Managed by the California Department of Water Resources (DWR) and under state regulation, Railroad Canyon undergoes regular inspections to ensure its operational effectiveness and adherence to safety standards. The dam's emergency action plan (EAP) was last revised in February 2021, emphasizing the importance of preparedness and risk management in the event of a potential breach or emergency situation. With a designated inspection frequency and a notable history of compliance, Railroad Canyon stands as a vital water infrastructure asset in Riverside County, playing a crucial role in maintaining water resources and climate resilience in the region.