How a future U.S. president helped avert nuclear disaster near Canada's capital

A viral post from the Historical Society of Ottawa is illuminating a part of the region's past that few in the area — or the country — have ever heard before.

Ben Weiss, co-ordinator of the society's Facebook page and speaker series, recently posted about the world's first nuclear reactor meltdown. And while Chornobyl, Fukushima and Three Mile Island often come to mind when nuclear incidents are brought up, this one happened less than 200 kilometres from the Canadian capital.

Even more interesting is catastrophe was averted, in part, with help from future U.S. president Jimmy Carter.

In December 1952, an experimental nuclear reactor in Chalk River, Ont., about 180 kilometres northwest of Ottawa, "experienced mechanical problems and operator error that led to overheating fuel rods and significant damage to the NRX reactor core," according to a Government of Canada page.

That page goes on to say it was the world's first nuclear reactor incident, but little else about what actually happened.

Using details from an article written by journalist and author Arthur Milnes, Weiss had posted about the Chalk River meltdown last Tuesday night.

"The next morning … I took a look. And all of a sudden, I realize this story has been on fire all night. I assumed people slept at night," he said. "But it was very extraordinary. And it resonated with people."

The historical society's posts generally garner views in the thousands, Weiss said, but this has been "by far" the most-viewed post he's ever put up at close to one million views — and that's just on Facebook.

Milnes, who also published a book about Carter and his wife Rosalynn, said the former U.S. president takes a lot of pride in his involvement in the Chalk River event.

"It's not a topic that most American journalists or anything had much interest in. So when President Carter found out that I wanted to talk about Chalk River, he was just really eager," Milnes said.

"He got to the point where I ran out of questions."

The partial meltdown at the facility brought explosions and it was flooded with hundreds of thousands of gallons of water, prompting the Canadian government to turn to its neighbour to the south for assistance.

Carter, a U.S. Navy lieutenant who was working on a nuclear submarine project in Schenectady, N.Y., at the time, was called upon to head north.

"We had the dubious distinction of having one of the first nuclear accidents. And the Americans, obviously, were very interested and … worried," Milnes said.