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This project is a mess. The boring has stopped until 2015 due to damage done to the drill and the cost has been steadily increasing. You can read more at http
by bunkat 12y ago
This project is a mess. The boring has stopped until 2015 due to damage done to the drill and the cost has been steadily increasing. You can read more at http://seattletimes.com/html/localnews/2024187017_berthadelay1xml.html http://seattletimes.com/html/localnews/2024187017_berthadela.... Turns out that boring large tunnels under cities is never straightforward.
- curtis 12y agoThe fact that there's been a setback does not mean that the project has turned into a disaster. In a really big, multi-year project things can go wrong, they can be dealt with, and the project can be completed successfully. In the case of stuck tunnel boring machines, a good example is the second St. Clair Tunnel (http://en.wikipedia.org/wiki/St._Clair_Tunnel http://en.wikipedia.org/wiki/St._Clair_Tunnel). The Seattle Times has a good article about the problems encountered with the St. Clair Tunnel and how that relates to the Seattle Deep Bore tunnel: "Canada’s tunnel saga offers lessons on Bertha fix" (http://seattletimes.com/html/localnews/2022905964_berthasarniaxml.html http://seattletimes.com/html/localnews/2022905964_berthasarn...). The conclusion of the article nicely sums things up: > Arguments over costs in Sarnia dragged on until 2008, when the Supreme Court of Canada decided who must pay $36 million for repairs and delays — the CN Railway’s insurers. > By then, double-stacked trains had been using the tunnel between Canada and the U.S. nearly 14 years, and the seven-month delay was long forgotten. > Until now. Now maybe other things will go wrong, and the project really will be a fiasco. But I don't think we're anywhere near that point yet.