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Winnipeg sinkhole likely caused by collapsed underground pipe: Professor

Click to play video: 'Winnipeg sinkhole likely caused by collapsed underground pipe: Professor' Winnipeg sinkhole likely caused by collapsed underground pipe: Professor
WATCH: A sinkhole on a Winnipeg road trapped a passerby's truck Wednesday. Global's Lorraine Nickel reports. – May 25, 2017

WINNIPEG — City crews are trying to figure out what caused a sinkhole in the middle of Powers Street in the North End Wednesday night.

Farley Pollock turned onto Powers Street just before 8 p.m Wednesday when his truck’s tire suddenly broke through the roadway.

READ MORE: ‘Front end dropped in and that was it’: Truck caught in sinkhole, towed out by residents

“It dropped pretty quick, the front end dropped in I tried to get out, there was no way I could move it,” said Pollock.

He says he called 311 two week ago and complained about a small hole in the road.

311 records obtained by Global News show that a complaint was made to 311 on May 12 at 10:38 a.m.

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It was deemed a ‘very high priority’ and crews had until July 11 to fix the problem but nothing was done.

Thursday morning, crews were seen lowering a robotic camera under the street to find the source of the problem.

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City Crews lower a robotic camera to inspect how a sinkhole occurred. Lorraine Nickel / Global News
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Farley Pollock leans on his truck after it fell into a sinkhole Wednesday evening. James Carter / Submitted
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The truck's front, driver's side tire was stuck in the sinkhole. James Carter / Submitted
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The sinkhole looked to be about six-feet-deep. Josh Arason / Global News
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Josh Arason / Global News

University of Manitoba Engineering Professor Ahmed Shalaby says he knows how it happened.

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“With sewer lines and water mains that are 100 years or older in Winnipeg it’s not unusual for a sinkhole to occur.”

Shalaby said sinkholes are caused when a sewer or water pipe collapse or break, eventually the soil around the pipe will also fall down and when the pavement is driven over enough it collapses causing a four to six feet deep hole in the roadway. He said this can be very dangerous.

RELATED: Sinkhole shuts down southbound St. Mary’s Road

“We have a problem with aging infrastructure that needs to be inspected and repaired and once we get ahead of that it will be a lot easy to prevent sinkholes from happening,” Shalaby said.

As for Pollock’s truck, he may have to get a new tire, but that’s about it.

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