Seafarers and SIU officials were on hand March 30 in Mobile, Ala. as Seafarers-contracted Crowley Maritime Corporation christened the first of six new 185,000-barrel articulated tug-barge (ATB) tank vessels that the company plans to take delivery of during the next two-and-a-half years.
SIU Vice President Gulf Coast Dean Corgey and SIU Mobile Port Agent Ed Kelly represented the union along with a number of rank-and-file members.
The vessels christened were the 9,280-hp tug Pacific Reliance and barge 650-1. The event took place at the Mobile Convention Center. Constance Crowley Peabody, aunt of Tom Crowley Jr., company chairman, president and CEO, christened the 127-foot Pacific Reliance while Janet Bishop from ConocoPhillips christened the 587-foot barge 650-1.
“This is state-of-the-art equipment and it represents a great addition to the SIU-contracted fleet,” noted Corgey. “I’m sure I speak for all of our other officials in saying that we’re completely confident that SIU members will do a fantastic job aboard the new ATB and the ones that follow.”
According to the company, Crowley’s Petroleum Services group will charter the VT Halter Marine-built ATB from Crowley’s vessel construction and naval architecture subsidiary, Vessel Management Services, and operate it for ConocoPhillips under a three-year agreement.
“We are thrilled to be expanding our ATB fleet with these new, larger, state-of-the-art vessels,” said Tom Crowley. “Our existing ATBs have performed extremely well for our petroleum customers, and we’re confident that this new ATB will provide ConocoPhillips with many years of safe, reliable and efficient transportation for their products.”
An ATB has an articulated, or hinged, connection system between the tug and barge, which allows movement in one axis, or plane, in the critical area of fore and aft pitch.
Crowley and VT Halter Marine jointly designed the ATB tank vessel. The barge 650-1 was built at Halter’s shipyard in Pascagoula, Miss., and the Pacific Reliance at its shipyard in Moss Point, Miss.
The new ATBs feature the latest systems technology and double-hull construction for maximum safety and reliability. Not only does the unit have the capability of transporting refined products, but it also can carry heated cargoes and certain chemicals which require special arrangements of vents, stripping systems, pump components and tank coatings above that normally required for product carriers.
All of Crowley’s ATBs are built under the ABS SafeHull program for environmental protection. This program puts the vessel design through an exhaustive review to identify structural loads and strengthen the vessel structure. The 650-Class barges will be 27,000 deadweight tons, 587 feet in length, 74 feet in breadth and 40 feet in depth. The fully loaded draft will be 30 feet.
According to Crowley, there is an electric cargo pump in each of the 14 cargo tanks to assure maximum cargo integrity and segregation flexibility; two anchor windlasses and associated equipment to enable the vessel to accommodate offshore mooring operations; and a vacuum system with three retention tanks to easily handle cargo changes. The ATBs also feature a dual mode inert gas system and vapor collection system for maximum safety. A layer of inert gas covers products in the tanks to make the atmosphere too lean for combustion. An enhanced mooring system features 1,000-foot Spectra-type lines on split drums with a high-speed recovery rate of 100 feet per minute.
The tugs meet all SOLAS (Safety of Life at Sea) and ABS criteria, and have a foam-capable fire monitor; twin fuel-efficient diesel engines; a noise reduction package; and other upgrades to increase crew comfort. The communication and navigation equipment is among the most technologically advanced in the industry today, according to Crowley.
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