Ottawa Sinkhole, Day 6: Hole ‘stabilized’ after weekend concrete work
Ottawa Citizen

This was posted more than 12 months ago. The information may be outdated.

By Jon Willing, Ottawa Citizen, June 13, 2016

The LRT tunnel is half-filled with water directly under the Rideau Street sinkhole and the city doesn’t know yet if a “roadheader” machine is submerged.

Steve Cripps, the city’s director of the rail implementation office, said the water is about 2.5 metres high at the deepest part. The tunnel is about five metres in diameter.

http://ottawacitizen.com/news/local-news/ottawa-sinkhole-day-6-hole-stabilized-after-weekend-concrete-work