[calgarygeologist]

I have heard that going under the river will be very difficult and expensive. As another alternative, I wonder if they can go underground from 24th until around 2nd Ave north and pop out of the hill and utilize the lower deck of the Center street bridge. Once across the bridge they can go back underground through downtown. It is similar to option B but I don't think B would get much support if it is going to run over top of Prince's Island at all.