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BONNIE CENAC
Pictured as Bonnie Cenac. Photo by: Sam Draye

Built in 2009, by CTCO Shipyard of Alabama Incorporated of Demopolis, Alabama (hull #502) as the Bonnie Cenac for the Cenac Towing Company Incorporated of Houma, Louisiana.

In 2017, the tug was acquired by the Kirby Corporation of Channelview, Texas, where she was renamed Mallard.

Powered by two, Cummins QSK 19 diesel engines. With Twin Disc reduction gears, at a ratio of 5:1. Turning two, stainless steel, fixed pitch propellers. She is a twin screw towboat, rated at 1,320 horsepower.

Her electrical service is provided by two, 40kW, generator sets. The tug's capacities are 8,800 gallons of fuel, 165 gallons of lube oil, and 3,150 gallons of water.
(Charles Bogart)


  • Vessel Name: BONNIE CENAC
  • USCG Doc. No.: 1225747
  • Vessel Service: TOWING VESSEL
  • Trade Indicator: Coastwise Unrestricted
  • Call Sign: WDF5377
  • Hull Material: STEEL
  • Hull Number: 502
  • Ship Builder: CTCO SHIPYARD OF ALABAMA LLC
  • Year Built: 2009
  • Length: 56.5
  • Hailing Port: HOUMA, LA.
  • Hull Depth: 7
  • Hull Breadth: 28
  • Gross Tonnage: 93
  • Net Tonnage: 74
  • Owner:
    KIRBY INLAND MARINE LP
    55 WAUGH DR STE 1000
    HOUSTON, TX 77007
  • Previous Vessel Names:
    BONNIE CENAC, MALLARD
  • Previous Vessel Owners:
    KIRBY INLAND MARINE LP CENAC MARINE SERVICES LLC CENAC MARINE SERVICES LLC CENAC MARINE SERVICES LLC CENAC MARINE SERVICES LLC CENAC MARINE SERVICES LLC CENAC MARINE SERVICES LLC CENAC MARINE SERVICES LLC CENAC MARINE SERVICES LLC CENAC MARINE SERVICES LLC CENAC MARINE SERVICES LLC CENAC MARINE SERVICES LLC CENAC MARINE SERVICES LLC CENAC MARINE SERVICES LLC CTCO MARINE SERVICES LLC CTCO SHIPYARD OF LOUISIANA LLC