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USS Cassin Young Drydocking Operation Begins

Boston National Historical Park

National Park News

On December 18th, Drydock 1 in the Charlestown Navy Yard was flooded and the caisson (the floating gate) was removed for the first time in 13 years – all part of preparations for the upcoming drydocking and rehabilitation of the USS Cassin Young .

The operation was a joint effort by the NPS, the United States Navy, and park volunteers. During the six-hour flooding project, two 12-inch valves in the caisson were replaced and divers inspected the drydock's seals and sills.

The Cassin Young is scheduled for hull repairs and painting in the summer of 2009. After the caisson is repaired and put back in place, the drydock will be emptied again, old keel blocks will be removed, and new ones will be set in place.

The Cassin Young is expected to be in Drydock 1 for three to four months, giving us a unique opportunity to interpret an actual ship drydocking for our visitors.



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