NB Power says the Mactaquac generating station will remain operational until 2068.
The utility had considered decommissioning the 670 megawatt dam by 2030 because of failing concrete. However it says a $3.6 billion project to fix the concrete and extend the life of the dam makes better business sense.
The New Brunswick Salmon Council had called for the removal of the dam to free the river flow. Area residents, on the other hand, said the headpond helps tourism in the area.