The ice on the Hudson River north of West Point is now 1.5 feet (45 cm) thick,
says the New York Times.
20 Feb 2015 – At least once a day lately, the Sturgeon Bay, a 140-foot Coast Guard icebreaker, crashes up and down the river, clearing paths through the ice so that boats carrying supplies can reach upstream communities.
In 2014, barges on the Hudson carried 20 million barrels of home heating oil northward, as well as 100,000 tons of dry goods, like salt and cement.
Lt. Ken Sauerbrunn, commanding officer of the Sturgeon Bay, said this winter was the worst he had seen since 2004, when Coast Guard boats were dispatched to New York Harbor to clear ice for the Staten Island Ferry.
Although the water around the city doesn’t freeze over anymore, says the Times, the New York Harbor froze completely in 1780, the hard winter during the American Revolution.
See video and complete article:
http://www.nytimes.com/2015/02/21/nyregion/under-frozen-tundra-an-icebreaking-ship-uncovers-the-hudson.html
Thanks to C Gross and Michaël Van Broekhoven for this link