Quote:
Originally Posted by yotajoe
That's why I said Ottawa, it's literally right beside the West Carleton Landfill.
Do you have a bedrock elevation map of the area? I don't doubt the downtown area is a filled swamp but if you've seen any sort of excavation downtown they usually need to blast past 10 feet. Even if they don't need to blast I bet that soil is very unstable, kind of like the same situation as what Ottawa had with byward and the O-Train. IMO the best option for now is an above ground parking garage with multiple levels or they could add lots of underground parking if they move ahead with the junction.
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When they built the new Beer Store on Lorn near Elm, they used a pile driver and there were times when it would fall down quicker than normal.