Sea route of the St. Lawrence

In its widest meaning, the Sea route of the St. Lawrence is a river deep, long 3700 km, which makes it possible the ships coming from the Atlantic Ocean to reach the head of the Big lakes of North America to the Higher Lac. But according to the law, it extends only from Montreal to the Lac Érié, including the Canal Welland which makes it possible to cross the Chutes of the Niagara.

The first part of the sea route is a chain of channels along the Fleuve the St. Lawrence which includes/understands seven locks (five Canadian, two American). The way starts with the wearing of Montreal, where the channel of Southern Bank (locks St-Lambert and Côte Holy-Catherine) makes it possible to cross the rapids of Lachine. The west of the island of Montreal and Lake Saint-Louis, the channel and the two locks of Beauharnois make it possible to go beyond the hydroelectric Barrage of Beauharnois.

The sea route leaves Quebec by the Lac Saint-François and the First nation of the Council of the Mohawks of Akwesasne to pass between the province of Ontario and the State of New York until the Lake Ontario. The channel Wiley-Dondero (locks Snell and Eisenhower) makes it possible to go beyond the hydroelectric stopping Moses-Saunders. The short lock of Iroquois also makes it possible to go beyond the Iroquois stopping which controls the level of the Lake Ontario.

The sea route is opened with navigation on April 25th, 1959 (grand opening on June 26th, 1959 by the queen Elizabeth II and chair it Dwight Eisenhower). She is under an canado-American joint administration.

The construction of the sea route allowed the involuntary introduction of animal species and vegetable nonindigenous into the watery ecosystem S of the St. Lawrence and the Big lakes, such as the streaked Moule and the Lamprey.

External bonds

the Sea route of the St. Lawrence
Network Big lakes
nonindigenous species in the basin Large Lake-Saint-Laurent

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