Sinkhole repair in Three Sisters gets approval

Canmore Town council has added a new capital project for this year that will permanently remediate a nearly five metre deep sinkhole in Three Sisters Mountain Village.

Late last year, Mayor John Borrowman announced the Town had received a $600,000 grant from the Province to fix the hole, located along a municipal pathway near Dyrgas Gate that formed in May 2010.

At its regular meeting on Tuesday (May 21), members of council voted unanimously to proceed with a capital project to fix the sinkhole, which was the result of an airshaft from Seam No. 4 in the No. 4 mine. The mine was closed in the 1940s.

In a presentation to council, Town manager of engineering services Andy Esarte indicated a significant amount of discussion had taken place regarding liability for potential sinkholes created from developing on undermined lands.

Read the full story at the Rocky Mountain Outlook.

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