Built in 1979, by Eymard and Sons Shipyard of Harvey, Louisiana (hull #12) as the Nora Adams for the Adams Marine Towing Company Incorporated of Morgan City, Louisiana.
In 2008, the tug was acquired by the Crosby Marine Transportation Company Incorporated of Golden Meadow, Louisiana. Where she was renamed as the Cedonia Crosby.
Powered by two, GM 12V-71 diesel engines. With a 6:1 reduction, turning two, stainless steel, fixed pitch propellers. She is a twin screw towboat, rated at 1,000 horsepower.
Her electrical service is provided by two, 30kW generator sets. The tug's capacities are 10,000 gallons of fuel oil, and 2,000 gallons of potable water.