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Old 10-13-2021, 09:18 PM   #143
accord1999
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Join Date: Aug 2010
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Quote:
Originally Posted by bizaro86 View Post
Not at all. Tunnels are wicked expensive. And the first few wouldn't be cheaper if you embarked on that plan. But once you had local expertise and a paid for tunnel boring machine the next bunch would be cheaper. Not cheap, but less incredibly expensive.
Back in a more optimistic time period for the Green Line, there was an interesting question by Chahal to then project director Paul Giannelia about tunneling past 16th Ave with the TBM. Giannelia answered that it would be the "cheapest, lowest cost tunneling you will ever buy" because so much of the fixed costs have been paid off.



https://pub-calgary.escribemeetings....ang=English#22


(video at 2:16:28)
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