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MOUNT BONA
Photo by: Kyle Stubbs

Built in 1998, by R and S Fabrication of Lockport, Louisiana (hull #030) as the Thad A. for the North Bank Towing Company of Cut Off, Louisiana.

In 1998, the North Bank Towing Company was acquired by Odyssea Vessels Incorporated of Berwick, Louisiana. Where the tug retained her name.

In 2014, the tug was acquired by the Crosby Marine Transportation Company of Golden Meadow, Louisiana. Where she was renamed as the Crosby Resolve.

In 2016, she was acquired by the the Kirby Corporation of Channelview, Texas. Where the tug was renamed as the Mount Bona.

Powered by two, Caterpillar 3508B diesel engines. With Reintjes WAF 571 reduction gears, at a ratio of 7.09:1. For a rated 4,200 horsepower.

The tug's capacities are 53,500 gallons of fuel, 1,350 gallons of lube oil, 350 gallons of hydraulic oil, and 10,000 gallons of potable water.

Her towing equipment consists of a Markey TDSDS 24 towing winch. Outfitted with 2,200(ft) of 1.75(in) towing cable.


  • Vessel Name: MOUNT BONA
  • USCG Doc. No.: 1070675
  • Vessel Service: TOWING VESSEL
  • IMO Number: 8973095
  • Trade Indicator: Coastwise Unrestricted, Registry
  • Call Sign: WDI8454
  • Hull Material: STEEL
  • Hull Number: 030
  • Ship Builder: IMA MARINE LLC
  • Year Built: 1998
  • Length: 86.2
  • Hailing Port: NEW ORLEANS, LA.
  • Hull Depth: 13.5
  • Hull Breadth: 32
  • Gross Tonnage: 97
  • Net Tonnage: 65
  • Owner:
    KIRBY OFFSHORE MARINE PACIFIC LLC
    55 WAUGH DRIVE SUITE 1000
    HOUSTON, TX 77007
  • Previous Vessel Names:
    THAD A, THAD A, CROSBY RESOLVE, CROSBY RESOLVE, CROSBY RESOLVE, CROSBY RESOLVE
  • Previous Vessel Owners:
    TMA MARINE LLC, ODYSSEA VESSELS INC, ODYSSEA VESSELS INC, CROSBY MARINE TRANSPORTATION LLC, CROSBY MARINE TRANSPORTATION LLC, CROSBY MARINE TRANSPORTATION LLC, CROSBY MARINE TRANSPORTATION LLC