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MARK K.
Pictured as: the Mark K. (Bay Houston Towing Company) Photo by: Michael Martin

Built in 1980, by Diamond Manufacturing Incorporated of Savannah, Georgia (hull #M-473) as the Mark K. for the Bay Houston Towing Company of Houston, Texas.

Along with the Suderman and Young Towing Company of Houston, Texas. The Bay Houston Towing Company is part of a combined operating company, the G and H Towing Company of Houston, Texas.

In 2011, the G and H Towing Company became part of a joint venture between the Moran Towing Corporation of New Canaan, Connecticut. Serving the Cameron LNG facility near Lake Charles, Louisiana.

Powered by a single, EMD 16-645E7B diesel engine. She is outfitted with a Nautican, triple vane, rudder system. She is a single screw tug, rated at 3,100 horsepower.


  • Vessel Name: MARK K.
  • USCG Doc. No.: 6205840
  • Vessel Service: TOWING VESSEL
  • IMO Number: 78166040
  • Trade Indicator: Coastwise, Unrestricted
  • Call Sign: WQZ8816
  • Hull Material: STEEL
  • Hull Number: M-473
  • Ship Builder: DIAMOND MANUFACTURING CO
  • Year Built: 1980
  • Length: 88.7
  • Hailing Port: HOUSTON, TX.
  • Hull Depth: 16.4
  • Hull Breadth: 32
  • Gross Tonnage: 117
  • Net Tonnage: 172
  • Previous Vessel Owners:
    BAY HOUSTON MARITIME INDUSTRIES INC