Northern Light
Superstar
forgive my ignorance, but how do you build tall buildings on lake infill sites, I thought the fittings had to hit bedrock
No worries. You learn by asking!
1) You don't have to build to bedrock strictly speaking, but for a tall building, most do. You do require a stable soil base.
2) Depth to bedrock varies across the City, but averages a bit over 30M below grade (something in the range of 10-12 storeys deep.
3) Bedrock is shallower near the Lake. (So closer to the surface).
4) The average depth of Lakefill isn't all that deep, in the range of 10-12M. Bedrock is generally located very close to the depth of the fill.
So in many cases even w/the fill, you have less than average depth to bedrock in the Lakefill areas.