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DELTA TERESA

Under construction, to be completed in 2019, by Nichols Brothers Boatbuilders Incorporated of Freeland, Washington (Hull # 190) for Bay and Delta Maritime Services Incorporated of San Francisco, California.

The first hybrid tractor tug in Bay and Delta’s fleet, she is powered by two Tier III compliant Caterpillar C3516 C diesel engines, and by two Rolls-Royce 424 kW electric motors. With two Rolls-Royce 255FP Z-drive units, for a rated 5,350 horsepower.

Her electrical service is provided by three CAT C9.3 generators with 300 kW each, and one C7.1 150 kW harbor generator.

The tug’s capacities are 71,000 gallons of fuel and 4,300 gallons of fresh water.


  • Vessel Name: DELTA TERESA
  • Hull Material: STEEL
  • Hull Number: 190
  • Ship Builder: NICHOLS BROS. BOATBUILDERS
  • Year Built: 2019
  • Length: 100
  • Hull Breadth: 40