Dorothy Rast Dam 1, located in Calhoun, South Carolina, was completed in 1964 and serves multiple purposes including fire protection, stock, small fish pond, and recreation. The dam is privately owned and regulated by the South Carolina Department of Health and Environmental Control (DHEC). With a height of 19 feet and a length of 397 feet, the dam has a storage capacity of 111 acre-feet and a surface area of 11 acres.

Despite being classified as having a high hazard potential, Dorothy Rast Dam 1 is currently in fair condition according to the most recent assessment conducted in February 2021. The dam is inspected every two years to ensure its safety and functionality. In the event of an emergency, an Emergency Action Plan (EAP) is in place, although its last revision date was in June 2019.

With its crucial role in providing water resources for fire protection and recreational activities, Dorothy Rast Dam 1 stands as a vital structure in the area. Its presence along the TR-Halfway Swamp Creek not only contributes to the local ecosystem but also highlights the importance of maintaining and regulating dams to ensure public safety and environmental sustainability.