Originally contracted to be built as YT‑392 on 7 April 1941, Mecosta (YTB‑392) was laid down by Consolidated Shipbuilding Corp., Morris Heights, N.Y., 13 September 1944; launched 28 October 1944: and placed in service 20 January 1945. In 1981, she was acquired for commercial service by Seabrook Towing Incorporated and renamed South Carolina. Seabrook was purchased by McAllister Brothers Towing in 1987, with the tug retaining her name. In 2002, she was acquired by Tucker Roy Marine Towing and Salvage Company and renamed R. Marcel Roy. She operated under this name until she was scrapped in 2012.