Alamo Dam, also known as Alamo Lake, is a federal-owned earth dam located on the Bill Williams River in Mohave County, Arizona. Completed in 1968, the dam stands at 283 feet tall and has a storage capacity of 1,409,000 acre-feet. Its primary purpose is flood risk reduction, but it also serves as a recreational spot and fish and wildlife pond. The dam has a high hazard potential and was classified as a high risk in a 2020 assessment, primarily due to the potential for overtopping during extreme flood events, with estimated consequences on nearby communities in Arizona and California totaling over $2.5 billion.

To manage and mitigate the risks associated with Alamo Dam, the US Army Corps of Engineers (USACE) has implemented various measures. These include closely collaborating with federal, state, and local emergency managers, conducting regular emergency exercises, monitoring rainfall forecasts to anticipate high water events, and engaging with local communities to enhance flood preparedness. USACE also conducts regular inspections, instrument monitoring, and maintenance to ensure the dam's structural integrity and performance. Future risk communication activities involve updating the Emergency Action Plan, coordinating with first responders, and developing a formal Risk Communication Plan to keep the public informed and safe in case of emergencies. With these efforts, USACE aims to reduce the risk to the public and ensure the safety and resilience of Alamo Dam.