K B Simmons Dam, located in Sumter, South Carolina, serves as a crucial flood risk reduction structure along the Mill Creek. Owned privately, the dam stands at a height of 22 feet and spans 360 feet in length, with a storage capacity of 150 acre-feet. Its primary purpose is flood risk reduction, but it also offers recreational opportunities in the surrounding area.

The dam, classified as an earth type with a buttress core, is regulated and inspected by the South Carolina Department of Health and Environmental Control (DHEC). Despite its fair condition assessment in 2017, the dam has a low hazard potential and a moderate risk assessment rating. It does not have an Emergency Action Plan (EAP) prepared, but it meets regulatory guidelines for state permitting, inspection, and enforcement.

Though modest in size, K B Simmons Dam plays a vital role in managing floodwaters and protecting the local community. Enthusiasts of water resources and climate will find the dam's design and operational details intriguing, as well as its impact on the surrounding environment and recreation opportunities.