Built in 2004, by Diversified Marine Incorporated of Portland, Oregon (hull #16) as the Tim Quigg for Harley Marine Services Incorporated of Seattle, Washington.
In 2019, Harley Marine Services Incorporated became the Centerline Logistics Corporation of Seattle, Washington. Where the tug retained her name.
Powered by two, Caterpillar 3056 diesel engines. With Rolls Royce Aquamaster 1350H z drives, at a ratio of 2.52:1. Outfitted with two, 80(in) by 75(in), four bladed, Ni-Al-Bronze propellers. For a rated 3,800 horsepower.
Her electrical service is provided by two, 99kW generator sets. Driven by two, Caterpillar 305GT diesel engines. The tug's capacities are 20,000 gallons of fuel, 1,400 gallons of water, 420 gallons of lube oil, 1,500 gallons hydraulic oil.