Blackwell Millpond Dam, located in Chesterfield, South Carolina, is a privately owned Earth dam that was completed in 1950 for recreational purposes. The dam stands at a height of 10 feet and spans a length of 450 feet, creating a surface area of 10 acres and providing a storage capacity of 54 acre-feet. The dam is situated on the BLACKWELL MILL STREAM and is regulated by the South Carolina Department of Health and Environmental Control (SC DHEC).

Despite being classified as having a significant hazard potential, Blackwell Millpond Dam is currently in fair condition, as assessed during the last inspection in January 2019. The dam is subject to regular inspections every 3 years to ensure its structural integrity and safety. In the event of an emergency, the dam does not have an Emergency Action Plan (EAP) prepared, raising concerns about the readiness for potential risks and the effectiveness of response measures. Overall, Blackwell Millpond Dam serves as a recreational feature in the area, but ongoing monitoring and maintenance are essential to mitigate any potential hazards and ensure the safety of surrounding communities.