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MARK L.

Built in 1970, by Fredeman Shipyard Incorporated of Carlyss, Louisiana (hull #106) as the James W. Crawford for the Port Arthur Towing Company Incorporated of Port Arthur, Texas.

The tug was later sold. Where she was renamed as the Miss Heather.

In 1993, the tug was acquired by Hollywood Marine Incorporated of Houston, Texas. Where she was renamed as the Mark L.

In 1999, she was acquired by the Kirby Corporation of Channelview, Texas. Where the tug retained her name.

Powered by two, Caterpillar D398E diesel engines. With Caterpillar reduction gears, at a ratio of 3.84:1. She is a twin screw, square bow, push boat. Rated at 1,900 horsepower.


  • Vessel Name: MARK L.
  • USCG Doc. No.: 525886
  • Vessel Service: TOWING VESSEL
  • Trade Indicator: Coastwise Unrestricted
  • Call Sign: WDC2718
  • Hull Material: STEEL
  • Hull Number: 106
  • Ship Builder: FREDEMAN'S CALCASIEU LOCK SHIPYARD INC
  • Year Built: 1970
  • Length: 74.1
  • Hailing Port: HOUSTON, TX.
  • Hull Depth: 9
  • Hull Breadth: 28.1
  • Gross Tonnage: 182
  • Net Tonnage: 124
  • Owner:
    KIRBY INLAND MARINE LP
    55 WAUGH DRIVE STE 1000
    HOUSTON, TX 77007
  • Previous Vessel Names:
    JAMES W. CRAWFORD, MISS HEATHER
  • Previous Vessel Owners:
    Port Arthur Towing Co., Hollywood Marine Inc., KIRBY INLAND MARINE LP, KIRBY INLAND MARINE LP, KIRBY INLAND MARINE LP, KIRBY INLAND MARINE LP, KIRBY INLAND MARINE LP, KIRBY INLAND MARINE LP