Built in 1986, by M.F. Martin Jr. of Brunswick, Georgia as the Stephanie S. for Petchem Tugs Incorporated of Wilmington, North Carolina.
In 2018, Petchem Tugs Incorporated was acquired by the E.N. Bisso and Son Company of Metairie, Louisiana. Where the tug retained her name.
In 2020, the tug was acquired by Winslow Marine Incorporated of Falmouth, Maine. Where the was renamed as the Fort Clinch.
Powered by two, Caterpillar 398 diesel engines. Turning two, stainless steel, fixed pitch propellers. She is a twin screw tug, rated at 2,000 horsepower.