The D.O.E. Savannah River H Area Ash Basin is a federal-owned structure located in Barnwell, South Carolina, with a primary purpose of "other." Built in 1954, this Earth-type dam stands at a height of 14 feet and has a hydraulic height of 7 feet. The dam has a normal storage capacity of 49 acre-feet and a maximum storage capacity of 98 acre-feet, with a surface area of 12 acres.

With a low hazard potential and a moderate risk assessment rating, the D.O.E. Savannah River H Area Ash Basin is considered to be in fair condition according to the last inspection date in 1995. The dam does not have an Emergency Action Plan (EAP) in place, and there is limited information available on risk management measures. Despite these challenges, the structure serves a crucial function in water resource management for the area, and its maintenance and monitoring are essential for the surrounding environment and community.