The Northwest Territories Power Corporation owns and operates Bluefish Hydro, a hydro
generation facility located at the north end of Prosperous Lake at the outlet of the
Yellowknife River. This facility has a generation capacity of 7.2 Megawatts and supplies
power to the Yellowknife service area.
Bluefish Hydro was originally developed by Nerco Con Mines. Construction began in
1940 and first power was generated in 1942. As part of that development an impoundment
dam was constructed at the outlet of Bluefish Lake. The original construction of
the dam was rock filled timber crib, utilizing locally harvested timbers. The normal life
expectancy of a timber crib dam is approximately 40 years, however, upgrades to the
dam completed in 1973, 1983 and 2007 extended the dams life beyond the normal expected
period.
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