Crystal Lake Dam, located in Lexington, South Carolina, is a privately owned earth dam built in 1900 for recreational purposes, spanning 690 feet with a height of 25 feet. Situated on Red Bank Creek, the dam has a storage capacity of 342 acre-feet and a surface area of 57 acres. Although the dam is primarily used for recreation, it is also regulated by the South Carolina Department of Health and Environmental Control, with state permitting, inspection, and enforcement in place to ensure its safety and compliance.

The condition assessment of Crystal Lake Dam is rated as fair, with a significant hazard potential, prompting regular inspections every three years. The last inspection was conducted in December 2020, with emergency action plans in place to address any potential risks. Owned by a private entity, the dam holds historical significance as a key feature in the local landscape, offering recreational opportunities for visitors while maintaining a balance between human enjoyment and environmental stewardship.

Despite its age, Crystal Lake Dam continues to serve its purpose effectively, providing a serene setting for outdoor activities and water resource enthusiasts to enjoy. With its stone core and soil foundation, the dam stands as a testament to engineering ingenuity of the past, further highlighting the importance of ongoing maintenance and regulatory oversight to ensure its long-term sustainability and safety for generations to come.