FILE - In this May 8, 2008 file photo, boats wait for Lock 7 to fill as they travel along the Erie Canal in Niskayuna, N.Y. It was an engineering marvel that brought tremendous wealth to New York and opened up the North American interior, helping turn the United States into an international commercial powerhouse in the 19th Century. Ground was broken for the Erie Canal 200 years ago, and when the 363-mile canal fully opened in 1825, it was the greatest engineering feat of the era and one that would change history. (AP Photo/Mike Groll, File)
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