Horseshoe Lake Dam, also known as Big Lake Dam, is a privately owned structure located in Oconee, South Carolina. Built in 1960 by the USDA NRCS, this earth dam stands at a height of 38 feet and stretches 400 feet in length. The primary purpose of the dam is for irrigation, with additional benefits for recreation.

Despite its age, Horseshoe Lake Dam is in poor condition and has a high hazard potential. The dam is classified as uncontrolled, with a spillway width of 0, posing a risk to the surrounding area in the event of a failure. The last inspection in June 2019 highlighted the need for improvements to ensure the safety and stability of the dam.

With a moderate risk assessment rating, there is a pressing need for risk management measures to be implemented at Horseshoe Lake Dam. As a key water resource in the region, efforts to address the dam's poor condition and high hazard potential are crucial to protecting both the local community and the environment. Climate enthusiasts and water resource professionals alike are closely monitoring developments at this site to ensure the safety and sustainability of this important infrastructure.