Tag Archives: BC Hydro

Island signs – Comox Lake Dam

Posted on November 12, 2016 by Katherine

I’d like to think that people would understand that a dam is not a great place for swimming, but the signs at the Comox Lake dam indicate otherwise.

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Comox Lake Dam – the spillway

Posted on November 12, 2016 by Katherine

The Comox Lake impoundment dam spillway Water flows over the spillway when the level of Comox Lake reaches 135.33 meters above sea level. The Comox Lake dam is a 142 m-long concrete gravity structure with a crest elevation of 137.55 … Continue reading →

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John Hart dam

Posted on October 14, 2016 by Katherine

John Hart dam

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John Hart penstock

Posted on October 13, 2016 by Katherine

The three wood stave penstocks running from John Hart Lake to the generating station

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John Hart surge towers

Posted on October 13, 2016 by Katherine

The three surge towers at BC Hydro’s John Hart Generating Station The 90-metre tall white surge towers are in place to prevent the penstocks from bursting during periods of low production when the flow gates are closed. They will be … Continue reading →

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Comox Lake – July 2016

Posted on August 1, 2016 by Katherine

I took a quick trip out to Comox Lake in late July to check the water level at the forebay area of the BC Hydro impoundment dam – besides providing a great visual indication of the water level, I can … Continue reading →

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John Hart penstock pipelines

Posted on June 7, 2016 by Katherine

In 1946, a portion of Elk Falls Provincial Park was transferred to the BC Power Commission for construction of the John Hart hydroelectric project near Campbell River. The project included the construction of three 12’ diameter wood stave pipelines to … Continue reading →

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Puntledge River diversion dam

Posted on June 5, 2016 by Katherine

The diversion dam on the Puntledge River Located downstream from the Comox Lake impoundment dam, the diversion dam diverts a portion of the water in the Puntledge River into into BC Hydro’s penstock system. Water in the penstock flows to … Continue reading →

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Puntledge penstock pipeline

Posted on April 25, 2016 by Katherine

The Puntledge Generating Station penstock pipeline has two sections – Above, the low pressure wood stave section that runs from the Puntledge River diversion dam, and below, the high pressure welded steel section that runs into the generating station.

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John Hart Penstock

Posted on November 18, 2015 by Katherine

Upper, wooden section of the penstock pipelines The upper, 3.6 metre diameter wood stave section running from the six-gate intake facility located at the intake dam on John Hart Reservoir is  1.1 kilometres long – it’s the low pressure section. … Continue reading →

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