Built in 1969, by Halter Marine Incorporated of New Orleans, Louisiana (hull #231) as the El Bisonte Grande for Tidewater Marine Services Incorporated of New Orleans, Louisiana.
In 1984, the tug was acquired by E.N. Bisso and Son Incorporated of Metaire, Louisiana. Where she was renamed as the Edwin N. Bisso.
Powered by two, sixteen cylinder, Caterpillar 3512 TA diesel engines. Turning two, cast steel, fixed pitch propellers. She is a twin screw tug, rated at 3,360 horsepower.
Her electrical service is provided by two, 75kW generator sets. The tug's capacities are 37,512 gallons of fuel, 12,151 gallons of water, and 11,095 gallons of ballast.
The towing equipment consists of a double drum, INTERcon towing winch. Outfitted with 2,000(ft) of 1.75(in) towing wire on each drum.