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To: Fuzzy who wrote (185796)9/25/2014 3:54:26 PM
From: JimisJim  Read Replies (2) | Respond to of 206110
 
From the US Coast Guard online site:

Icebreaking
The Coast Guard was directed by Congress to acquire Great Lakes Icebreaking Capability to replace USCGC MACKINAW (WAGB-83) with funding provided in the 2000 budget. As a result the Great Lakes Icebreaking Capability Replacement (GLIB) project was started with the primary purpose of meeting the heavy icebreaking requirements of the Great Lakes as spelled out under several federal mandates. Specifically, Executive Order NO. 7521 dated 21 December 1936 states "The Coast Guard ...... is hereby directed to assist in keeping open to navigation by means of ice-breaking operations .... channels and harbors in accordance with the reasonable demands of commerce."

Maintaining a reliable Great Lakes heavy icebreaking capability is essential. Great Lakes shipping operates on a 42 week shipping season to deliver 150 million tons of materials. Of those 42 weeks, 12 weeks require icebreaking services.

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I'm sure there are times when it is futile, but the fact is that they do try to keep all ports open if possible -- obviously last winter that was nearly impossible late in the winter.