Applegate Dam, also known as Applegate Reservoir, is a rockfill dam located on the Applegate River in Oregon. Built in 1980 by the US Army Corps of Engineers, the primary purpose of the dam is flood risk reduction, with additional functions including fish and wildlife pond, irrigation, recreation, and others. The dam stands at a height of 242 feet and has a storage capacity of 89,300 acre-feet, serving the region by significantly reducing flood risks.

While Applegate Dam is well-built and maintained, a 2019 risk assessment categorized the life-safety risks as moderate, with the main concern being the dam's ability to handle extreme flood events. The dam's spillway gates may not have the capacity to safely release water in very large storm events, potentially leading to overtopping and downstream flooding. Despite these risks, USACE implements various risk management measures, including regular inspections, seismic monitoring, emergency action plans, and community outreach to enhance awareness of flood risks and dam safety. Overall, Applegate Dam plays a crucial role in mitigating flood risks in the region, but the potential for flooding remains in extreme weather conditions.