Built in 2014, by Conrad Shipyard of Morgan City, Louisiana (hull #C-1060) as the Emery Zidell for Harley Marine Services Incorporated of Seattle, Washington.
Named for Emery Zidell, founder of the Zidell Marine Corporation of Portland, Oregon. The same shipyard that constructed the barge for the unit.
In 2019, Harley Marine Services Incorporated became the Centerline Logistics Corporation of Seattle, Washington. Where the tug retained her name.
Powered by two, Tier III compliant, GE L250 diesel engines. With Reintjes WAF 1563 reduction gears, at a ratio of 4.746:1. Turning two, 116(in) pitch, by 110(in) diameter, four bladed, fixed pitch, stainless steel propellers. For a rated at 4,070 horsepower.
Her electrical service is provided by two, John Deere 6068TFM 363OSL1607 generator sets. The tug's capacities are 100,000 gallons of fuel.
The tug is outfitted with an Articouple FRC 55 coupler system.