Quote:
Originally Posted by Fuzz
The ground under downtown isn't really great for tunneling. They are also incredibly expensive. I don't think just buying a machine then means cheap tunnels everywhere.
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The main controversy over the greenline has been tunnelling and the costs which are like 10-20 times the cost of trenching. Even the airport tunnel has been a ton of drama and arguing over cost. The greenline tunnel under the river has been completely scrapped now.
The city is currently embroiled in expensive underground utility mapping and surveying projects to even embark on the greenline build along 11th avenue.
The only reason the C-Train tunnels exist past City Hall is planning in the 70s which ensured no utilities were placed there. Tunnelling under Stephen Ave and other things have cropped up over the years but it would be an incredible expense to ensure it's done safely and to relocate all the gas, water, electrical mains and the web of complexities under most of downtown.
There are still underground tunnels and an unused station under City Hall.