John Ballentine Dam, located in Berkeley County, South Carolina, was completed in 1970 and stands at a height of 11 feet with a length of 720 feet. The primary purpose of this earth dam, with a buttress core type, is for recreation, offering a surface area of 28 acres and a storage capacity of 252 acre-feet. Situated on the TR-Wassamassa Swamp, this dam is under state regulation by the South Carolina Department of Health and Environmental Control (DHEC), ensuring regular inspections and enforcement of safety measures.

Despite its low hazard potential, John Ballentine Dam has been assessed to be in poor condition as of November 2017, highlighting the need for maintenance and potential upgrades. The dam's spillway type is uncontrolled, with no outlet gates or associated structures. Although the risk assessment categorizes it as moderate, with a DSAC (Dam Safety Action Classification) assigned date not specified, there is room for improvement in risk management measures to ensure the safety of the surrounding community and the environment. With its picturesque location and recreational opportunities, John Ballentine Dam holds potential for further enhancement and sustainable management in line with evolving climate and water resource conservation practices.