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| Re: The Most Awful Transit Center in America Could Get Unimaginably Worse (1461977) | |||
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Re: The Most Awful Transit Center in America Could Get Unimaginably Worse |
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Posted by Fisk Ave Jim on Fri Jan 12 17:47:07 2018, in response to Re: The Most Awful Transit Center in America Could Get Unimaginably Worse, posted by sand box john on Thu Jan 11 19:55:25 2018. Are the Hudson river & Steinway tunnels bored thru solid rock? It Seems that the NATM method is designed to work best when going thru solid rock. IIRC both tunnels only have sections that go thru bedrock, the rest thru muck thus might not a viable tunneling method for a rebuild. |
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