Una Johnson Dam, located in Cherokee, South Carolina, was completed in 1952 and serves as a recreational water resource along the TR-Broad River. The dam, standing at 42 feet tall and 500 feet long, has a storage capacity of 394 acre-feet and a surface area of 23 acres. Despite being primarily used for recreation, the dam also serves the purpose of flood control and water supply for the surrounding area.

The dam, classified as an earth dam with a buttress core type, is regulated by the South Carolina Department of Health and Environmental Control (DHEC). With a low hazard potential and a poor condition assessment as of September 2017, the dam is inspected every 5 years to ensure its safety and integrity. Although the dam has not undergone any significant modifications in recent years, it remains a crucial structure for the community and a popular destination for outdoor enthusiasts in the region.

As climate change continues to impact water resources, the Una Johnson Dam plays a vital role in managing water flow and providing a recreational outlet for the community. With its historical significance and practical functionality, the dam stands as a testament to the importance of sustainable water management practices in the face of changing environmental conditions.