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Outardes-4
Outardes-4 is a hydroelectric power station and dam on the Outardes River northwest of Baie-Comeau, Quebec, Canada. The power station was commissioned in 1969 and is supplied by the Outardes-4 Reservoir which is created by seven additional dams.〔(【引用サイトリンク】url=http://www.industcards.com/hydro-canada-qc.htm )〕〔(【引用サイトリンク】url=http://www.hydroquebec.com/generation/centrale-hydroelectrique.html )〕
==Construction==
Outardes-4 was built in conjunction with the Manicouagan-Outardes project and is the northern most power station on the Outardes River. Construction on the diversion tunnel for the Outardes River began in September 1964 and was finished in April 1965. A cofferdam was constructed upstream to direct the river into the diversion tunnel; none was built downstream because the river's grade was sufficient. Once the river was diverted, work commenced on Dam No. 1's foundation. Workers and engineers cleared alluvial material from the riverbed but ran into uplift faults and pot-holes. Around six pot-holes with to diameters and up to deep had to be excavated, partly by hand. Eventually, those under the dam's foundation were filled in with concrete.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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