Built in 2019, by Conrad Shipyard Incorporated of Morgan City, Louisiana (hull #C-1186) for Harley Marine Services Incorporated of Seattle, Washington.
In 2019, Harley Marine Services Incorporated became the Centerline Logistics Corporation of Seattle, Washington. The uncompleted tug was "laid up" at Conrad Industries Incorporated in Orange, Texas.
In 2020, the tug was acquired by the Norfolk Tug Company of Norfolk, Virginia. Where she was completed, and renamed as the Stephen J. Leaman.
Powered by two, Tier IV compliant, Caterpillar 3512-E diesel engines. With Reintjes WAF 773 L reduction gears at a ratio of 6.440. Turning two four bladed stainless steel propellers, for a rated 3,000 horsepower.
Her electrical service is provided by two, Tier III compliant, 118kW, Caterpillar 7.1 generator sets. The tug’s capacities are 84,885 gallons of fuel, 8,882 gallons of water, 542 gallons of lube oil, 542 gallons of hydraulic oil, and 3,870 gallons of urea.
The towing equipment consists of an electric, double drum, INTERcon, towing winch. Outfitted with with 2,000(ft) of 2(in) towing wire on the primary drum. And 1,800(ft) of 2(in) towing wire on the secondary drum.