The Montreal/Lake Ontario Section of the Seaway
THE MONTREAL/LAKE ONTARIO SECTION OF THE SEAWAY he St. Lawrence Seaway, in its broadest of the deep waterway, the St. Lawrence Seaway sense, is a deep waterway extending some proper extends from Montreal to Lake Erie. 3,700 km (2,340 miles) from the Atlantic T The Montreal/Lake Ontario section Ocean to the head of the Great Lakes, at the encompasses a series of 7 locks from Montreal heart of North America. Strictly speaking, how- (Quebec) to Iroquois (Ontario) enabling ships to ever, within the meaning of the legislation which navigate between the lower St. Lawrence River provided for the construction and maintenance and Lake Ontario. Laker under Mercier Bridge 1 HISTORY he opening of the Seaway, in April of 1959, The building of the Erie Canal, in the marked the full realization of a 400 year-old United States, early in the 19th century, provided T dream. In the early part of the 16th century, the incentive for the construction of additional and Jacques Cartier, the French explorer, was turned deeper canals and locks along the St. Lawrence. back by the rushing waters of the Lachine Rapids, The American waterway, which offered a fast, just west of what is now Montreal, and thus denied uninterrupted link between the growing industrial his dream of finding the Northwest Passage and the heartland of North America and the Atlantic Ocean route to the East. At various times during the inter- through New York posed a serious threat to vening 300 years, canals have been dug and locks Canadian shipping and, in particular, to the develop- built around the natural barriers to navigation in the ment of the City of Montreal as a major port.
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