Built in 2007, by Thoma-Sea Boat Builders Incorporated of Houma, Louisiana (hull #130) as the Potomac for the Vane Brothers Company of Baltimore, Maryland.
She was the seventh Patapsco class tug designed by Frank Basile of Entech and Associates of Houma, Louisiana. And constructed by Thoma-Sea Boat Builders for the Vane Brothers Company.
Named for the Potomac River, that flows into the Chesapeake Bay. The river (main stem and North Branch) is approximately 405 miles long. The river forms part of the borders between Maryland and Washington, D.C., on the left descending bank and West Virginia and Virginia on the river's right descending bank.
The majority of the lower Potomac River is part of the State of Maryland. Exceptions include a small tidal portion within the District of Columbia, and the border with Virginia being delineated from "point to point." Except for a small portion of its headwaters in West Virginia, the North Branch Potomac River is considered part of Maryland to the low water mark on the opposite bank. The South Branch Potomac River lies completely within the state of West Virginia except for its headwaters, which lie in Virginia.
Powered by two, Caterpillar 3516 diesel engines. With Reintjes WAF-872 reduction gears. Turning two, 97(in), fixed pitch, propellers. Mounted in CNF, Type 37, kort nozzles. She is a twin screw tug, rated at 4,200 horsepower.
The tug's electrical service is provided by two, 72kW, Caterpillar 3054T generator sets. Her capacities are 89,910 gallons of fuel oil, and 8,816 of potable water.
Her towing gear consists of an INTERcon, double drum, towing winch. Driven by a dedicated John Deere diesel engine.