3 workers safe after incident in LRT tunnel near University of Ottawa - Action News
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Ottawa

3 workers safe after incident in LRT tunnel near University of Ottawa

The Ministry of Labour has been called in to investigate after three workers had to seek shelter following the collapse of building material in an LRT tunnel near the University of Ottawa.

Emergency crews dispatched at around 4:20 p.m. to Laurier and Waller

Emergency crews walk inside a light rail tunnel near the University of Ottawa Thursday afternoon where three workers had to be rescued following an industrial accident. (Professional Paramedic Association of Ottawa)

The Ministry of Labour is investigating after three workers had to seek shelter Thursday afternoon following an industrial incidentin a light rail tunnelnear the University of Ottawa.

One of the workerssuffered a hand injury, paramedics said,after building material came loose during work on the tunnel's side wall. The other two workers were unhurt.

All three sought shelter in a safe zone underground until firefighters could reach them, according to emergency officials at the scene.

Ottawa Fire Services say they were dispatched to the area for a possible rescue at around 4:20 p.m.

Rideau-VanierCoun. MathieuFleury, who represents the area, told CBC News that a portion of the tunnelthat was being reinforcedwith a building material calledshotcretefell.

As its name might suggest, shotcrete isconcrete that's shot out of a hose-like piece of equipment.

It's intended to reinforce the sides of the light rail tunnel and was used during repairs following the Rideau Street sinkhole this summer.

In audio from the dispatch calls, provided byBroadcastify, an emergency responder warned"the side of the wall is caving in" where the three workers are trapped, and that "there could be additional injuries as this thing continues to evolve."

The three workers made it out safely.

'Always a risk'

Mayor Jim Watson told reporters that pieces of rebar came loose while workers in the tunnel were spraying concrete. Watson said he was told that approximatelysix kilograms worth of material fell.

Ontario's Ministry of Labour hasbeen called in toinvestigate, Watson said, and no one would be allowed in the tunnel until they arrived. He reiterated that the tunnel itself did not collapse.

"Anyone who's been involved in any tunneling realises there's always a risk of challenges in the tunnel," Watson said.

"We have some of the best tunnel engineers working on this project. Safety is our first and foremost concern."

'Minor construction incident'

Crews were applying the concrete to the tunnel's side wall when "reinforcing steel" came loose and ended up resting on the three workers' machine, said John Manconi, the general manager of the city's transportation services department.

The "minor construction incident," as Manconi put it, happenednear where aneight-metre wide, 12-metre deep sinkholeformed in 2014 while crews were digging an entrance to the city's light rail tunnel.

LaurierAvenuehad been closed from Nicholas Street to King Edward Avenue. It was reopened at around 6 p.m.

Philbert Carter was working further down the light rail tunnel from where the incident happened. He was able to get out safely.

"It's just one of those things that happens sometimes," Carter said.

"We worry about our safety all the time, because it's a hectic job. And we always have to work safe. And that's the main thing to work safe and make sure the guys around us are working safe."

Philbert Carter was working in the light rail tunnel near the University of Ottawa where three workers had to be rescued Thursday afternoon. (Chris Rands/CBC)

With files from Ashley Burke, Giacomo Panico and Joanne Chianello