Quote:
Originally Posted by calgarygeologist
Calgary has a fairly unique set of challenges related to subsurface conditions which a lot of other cities do not have to deal with. We have a very soft and unstable subsurface which makes it difficult to maintain stability for tunnels and which is why deep foundations are necessary for our taller buildings. We also have a pretty shallow water table with above average hydraulic head (pressure.)
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But it's still possible, right? I mean, why would it be an option if the city's civil engineers didn't think it was a viable solution?