NB Power invests $2.3M to study Mactaquac Dam

NB Power isinvesting $2.3 million to studythe potential environmental impacts of future options being considered for the agingMactaquacDam, officials announced in Fredericton on Tuesday.

The utility has hired the University of New Brunswick's Canadian Rivers Institute to provide independent research on the three optionsrebuilding it, maintaining the earthen dam and spillway only, or removing it and returning the St. John Riverto its natural state.

NB Power must choose a preferred option by 2016, given the anticipated times required for federal and provincial approvals, design and site work, said president and CEO Gatan Thomas.

The dam will reach the end of its lifespan by 2030, he said.

Stephanie Merrill, of the Conservation Council of New Brunswick, applauds NB Power's move to look ahead.

"There's lots of timeto weigh the options, to do the science that's neededto understand the impacts of all of the options and the Canadian Rivers Institute is the perfect group of scientists to be undertaking this with," she said.

The institute will evaluate key environmental challenges related to the dam, including river health, fish passage and flow management, said projectdirector Allen Curry.

"Our goal is to provide objective and transparent science that is accessible and defensible," Currysaid in a statement.

"The three years will get usto a point whereNBPower will be in a position to make an informed decision about which of the options they want to take forward," he said.

Meanwhile, the utility will be doing its own research on the economic and social impacts of any changes, seeking advice from experts and meeting with First Nations people who live and work near the dam,as well as other stakeholders.

The 660 megawatt plant, which officially opened in 1969, was originally expected to churn out electricity until 2068.

But its life expectancyis now 2030 because the concrete used to build the power house and spillways began expanding and causing cracks.