BC Hydro will be increasing the Elk Falls Canyon water flow from the four cubic metres squared (m3/s) base flow to about 10 m3/s in the early morning hours of Thursday, Dec 13.
The discharge down the canyon from the John Hart dam will then be reduced back to the minimum flow on Dec. 14.
The short duration increase in the canyon flow is related to some testing work within the new underground John Hart powerhouse, said BC Hydro spokesperson Stephen Watson. Flow in the Campbell River will go up to about 134 m3/s with the powerhouse running at full capacity and the 10 m3/s down Elk Falls. The total river flow will be reduced once the test is compete.
BC Hydro is advising the public to stay away for the upstream side of Elk Falls during the higher flow conditions on Dec. 13 and 14.