From a Ontario Hydro Leaflet of 1956: ST. LAWRENCE POWER PROJECT This general arrangement map shows the 35 mile International Rapids section of the St Lawrence River where the 2,200,000 horsepower hydro electric project will be constructed; one half of the power produced (1,100,000 horsepower) will be Ontario's share. Impressive international ceremonies on August 10 marked the official start of work. Ontario Hydro and the New York State Power Authority are partners in the construction project and will share the $600,000,000 costs. The three principal structures will be (1) the power house, which will hose the generators. And will be located between the eastern end of Barnharts Island and the Canadian mainland, three miles west of Cornwall; (2) Long Sault Dam, situated between the western tip of Barnharts Island and the United States mainland, three miles upstream from the powerhouse structure and intended to divert the desired amount of water to the headpond, allowing, as necessary, excess amounts to bypass the powerhouse; (3) Iroquois Dam, located at Iroquois Point near the town of Iroquois, 25 miles upstream from the Long Sault Dam, which will permit regulation of levels and the outflow of water from Lake Ontario. The Headpond above the powerhouse, will inundate sections of the Canadian shore for a distance of 35 miles. An area of approximately 16 1/4 square miles, affecting some 5,000 persons, will be placed under water, including the villages of, Iroquois, Aultsville, Farran Point, Dickinson Landing, Wales, Moulinette, Mille Roches, and about one third of the town of Morrisburg. Ontario Hydro, at the request of the Provincial Government, has set up a committee to study the relocation, rehabilitation, and community planning of the areas affected. Tenders for the initial stages of the work were called for in July 1954, and included construction of Ontario Hydros project office, to be located west of Cornwall near the powerhouse site; cofferdam construction for the Long Sault Dam and under watering of this area, and cofferdam dewatering of the powerhouse section. First power from the project is expected in the Fall of 1958, with substantial completion of the entire power project in 1959.
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