Expanding sinkhole frustrating SW Calgary residents weeks after water main break

A giant sinkhole in Calgary's southwest continues to grow larger nearly two weeks after it formed, and as our Jayden Wasney reports, so too does the frustration among impacted residents.

By Jayden Wasney

Posted Jun 8, 2026 4:36 pm.

Last Updated Jun 8, 2026 4:37 pm.

A growing sinkhole in Calgary’s Coach Hill neighbourhood is still causing disruption for residents nearly two weeks after a water main break.

The sinkhole formed after a water main ruptured underground on May 26 along Coach Hill Road SW, flooding the street and leaving behind damage that residents say has steadily expanded as crews work through repair challenges.

A resident who witnessed the initial break said water surged suddenly.

“I was just walking down the street, and then water came in front of me 10 feet from it,” they said. “I was right there.”

What began as a break in the line has since become a major neighbourhood headache. Karen Lasku lives along the affected stretch and says the sinkhole has nearly doubled in size since the rupture.

“It’s been growing day by day, it’s been getting bigger and bigger,” she said, adding she worries the collapse could reach the sidewalk. “Then we’d be actually trapped in here, and we don’t know for how long.”

Residents were without running water for close to four days after the break, and frustrations remain even with service restored.

*A resident stands in front of an expanding sinkhole in the SW Calgary community of Coach Hill on June 8, 2026. (CityNews/Jayden Wasney)*

Lasku says the city has warned the entire cul-de-sac may need to be closed if the ground continues to shift.

“They’re talking about closing this entire cul-de-sac off because they think there might be further caving in, so I’m not sure if I should take my car out of the garage and park up the street,” she said. “That’s what we’ve been doing.”

Others in the area echoed her concerns, praising city workers on the ground but expressing disappointment with how long repairs have taken.

The City of Calgary says crews have encountered challenges at the site. In a statement, officials said a larger crew has now been mobilized and repairs are expected to be completed early this week, followed by backfilling and roadway restoration.

One resident noted the timing could have made the situation far worse.

“Good thing that this didn’t happen in January, it would be very hard to work with that.”