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TIOGA
Pictured as: the Tioga (Crowley Marine Services) Photo by: Kyle Stubbs

Built in 1994, by Tri State Marine Incorporated of Seattle, Washington (hull #G0106) as the Tioga for the Coos Bay Towboat Company of Coos Bay, Oregon.

In 1998, the tug went on a long term, "bareboat" charter to Crowley Marine Services Incorporated of San Francisco, California. Where she retained her name.

In 2009, she was acquired by Crowley Marine Services Incorporated of San Francisco, California. Where she retained her name.

Powered by two, Caterpillar 3516DITA diesel engines. With two Ulstein 1650H z drives, for a rated 4,400 horsepower. In 2015, the tug was repowered with two, Tier III compliant, Caterpillar 3512C diesel engines. With her original, Ulstein 1650H z drives, for a rated 4,400 horsepower.


  • Vessel Name: TIOGA
  • USCG Doc. No.: 1021169
  • Vessel Service: TOWING VESSEL
  • IMO Number: 9122734
  • Trade Indicator: Coastwise Unrestricted, Registry
  • Call Sign: WDE7327
  • Hull Material: STEEL
  • Hull Number: G0106
  • Ship Builder: TRI-STAR MARINE INC
  • Year Built: 1994
  • Length: 78.7
  • Hailing Port: SAN FRANCISCO, CA.
  • Hull Depth: 15.3
  • Hull Breadth: 30
  • Gross Tonnage: 147
  • Net Tonnage: 100
  • Previous Vessel Owners:
    VESSEL MANAGEMENT SERVICES INC, VESSEL MANAGEMENT SERVICES INC, VESSEL MANAGEMENT SERVICES INC, VESSEL MANAGEMENT SERVICES INC, VESSEL MANAGEMENT SERVICES INC, VESSEL MANAGEMENT SERVICES INC