Proceedings Of The Marine

SUM 2016

Proceedings magazine is a communication tool for the Coast Guard's Marine Safety & Security Council. Each quarterly magazine focuses on a specific theme of interest to the marine industry.

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58 Proceedings Summer 2016 www.uscg.mil/proceedings scouring or channels shifting from big spring run- offs, keeping vessels from unintentionally ground- ing during a transit. This "local knowledge" is then shared with other Crowley vessels. Going Dry Other challenges stem from the lack of dock infra- structure and port facilities. There are roughly 12 docks our vessels can tie up to with any type of port facility, and most of those are located in the Bristol Bay area. Once vessels get further west and north, only the larger hubs of Nome and Kotzebue have improved facilities and docks. This means that most vessel types can't access these communities. Instead, Crowley's crews either push to the beach or bank with the barge, or they double anchor at some locations to stay afloat, then float a hose to pump petroleum products to shore. When vessels push to the beach, the crews have to plan transits carefully and monitor the tide, wind, weather, and more to remain safe while delivering. Typically, this means vessels transit the track line Built for This Work Crowley's newest double-hulled lighterage barge under construction at the shipyard. Photo courtesy of Crowley by Captain Greg Pavellas. The tug Avik skiff leads the way in the deep channel to the village of White Mountain, Alaska. Photo courtesy of Crowley by Bill Snider. "These boats are designed to run shallow and operate where most vessels can't. If we have water, we can continue to operate. Sometimes progress is measured in feet made even at .2 knots across the flats, and sometimes we just run out of water and have to wait for more to come in to start moving again. The point is: This is what the area offers, so we have designed a system to operate successfully within the parameters we are given," says Crowley's Jeremy Grenville, captain. Crowley's latest class of vessels is the Ikkat- class tug, with "Ikkat" meaning "shallow" in the Alaskan Inupiaq language. Crowley built these vessels because the port infrastruc- ture simply doesn't exist if repairs need to be made. Instead, crews can pull the vessels onto the beach to repair rudders and shafts, if need be, and then get back to work.

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