New Jones Act ammonia Carrier Delivers For Fertilizer Giant
Professional Mariner|October November 2017

New Jones Act ammonia Carrier Delivers For Fertilizer Giant

Alan Haig-Brown
New Jones Act ammonia Carrier Delivers For Fertilizer Giant

Swan Island, in the Willamette River at Portland, Ore., saw a lot of ships launched from the Kaiser Yard during World War II, but those shipyard workers could not have imagined anything like the 508-foot Harvest launched by Vigor in 2017 from the same site. While the 1940s ships were primarily 526-foot tankers, any similarity with Harvest ends with the length.

The World War II ships were designed to carry oil while the technologically advanced Harvest — part of an articulated tug-barge (ATB) unit — carries liquid ammonia maintained at minus 27 degrees Fahrenheit. Commonly known as anhydrous ammonia, this chemical is used in a wide range of fertilizers. Classified as an extremely hazardous substance in the United States, an extensive array of features are required for its transport.

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