Large format of the concrete piers at the Flight Locks of the New York State Barge Canal in Waterford New York.
The Waterford Flight is a series of five locks that lift boats from the Hudson River (elevation 15.2 feet) at Lock 2 to the Mohawk River (elevation 184 feet) west of Lock 6, just above Cohoes Falls. These locks, each with a lift ranging from 33 to 34.5 feet, raise boats a total of 169 feet over a span of just 1.5 miles.
When it opened, the Waterford Flight achieved the highest elevation change in the shortest distance for canal locks in the United States. It’s believed that it still holds the record worldwide. For comparison, the Panama Canal has an elevation change of 85 feet, while Canada’s Welland Canal rises 326 feet—but over 27 miles.
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