Hydroelectric Power Project
In August, 1949, Joey Smallwood, Premier of Newfoundland, had the opportunity to see Churchill Falls for the first time and it became his obsession to develop the hydroelectric potential of the falls. In 1953 British Newfoundland Development Corporation (Brinco) was formed to do extensive exploration of the untapped water and mineral resources. With the development of the iron ore mines in western Labrador and the construction of the Quebec North Shore and Labrador Railway (1954), development of Churchill Falls as a power source became feasible.
After years of planning, the project was officially started on July 17, 1967. The machine hall of the power facility at Churchill Falls was hollowed out of solid rock, close to 1,000 ft (300 m) underground. Its final proportions are huge: in height it equals a 15-storey building, its length is three times that of a Canadian football field. When completed, it housed 11 generating units, with a combined capacity of 5,428 MW (7,279,000 hp). Water is contained by a reservoir created not by a single large dam, but by a series of 88 dikes that total 64 km (40 mi) in length. At the time, the project was the largest civil engineering project ever undertaken in North America.
Once all the dikes were in place, it provided a vast storage area which later became known as Smallwood Reservoir. This reservoir covers 2,200 sq mi (5,700 km2) and provides storage area for more than 1×1012 cu ft (28×109 m3) of water.
The drainage area for the Churchill River includes much of western and central Labrador. Ossokmanuan Reservoir which was originally developed as part of the Twin Falls Power System also drains into this system. Churchill River's natural drainage area covers over 23,300 sq mi (60,000 km2). Once Orma and Sail lakes' outlets were diked, it added another 4,400 sq mi (11,000 km2) of drainage for a total of 27,700 sq mi (72,000 km2). This makes the drainage area larger than the Republic of Ireland. Studies showed this drainage area collected 410 mm (16 in) of rainfall plus 391 cm (154 in) of snowfall annually equalling 12.5 cu mi (52 km3) of water per year; more than enough to meet the project's needs. Construction came to fruition on December 6, 1971, when Churchill Falls went into full-time production.
The generating station is owned by the Churchill Falls (Labrador) Corporation Ltd. — whose shareholders are Nalcor (65.8%) and Hydro-Québec (34.2%) — and operated by the Newfoundland and Labrador Hydro company.
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