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Old Posted Jul 22, 2008, 12:29 PM
Justin10000 Justin10000 is offline
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Join Date: Sep 2006
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Originally Posted by philvia View Post
the rock under manhattan is the hardest in the world
It's actually one the reasons why New York can build such an amazing skyline. The rock is great support for all the buildings.

That being said, this project is very complex, and I can see where people think it is expensive for a "short" line. They have to drill under the LIRR yards, they have to connect to the 63rd St tunnels, AND still have to bore 140 feet under the Grand Terminal! It's not going to be a simple 2 track terminal. It's going to be 8 tracks, 4 stacked on top of each other. All at 140 feet below the surface.
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