New York expanding nation's biggest transit hub

Feb 7, 2013 | Posted by: roboblogger | Full story: The Republic

Sixteen stories below Grand Central Terminal, an army of workers is blasting through bedrock to create a new commuter rail concourse with more floor space than New Orleans' Superdome, just one of three audacious projects going on beneath New York City's streets to expand what's already the nation's biggest mass transit system.

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1 - 2 of 2 Comments Last updated Feb 8, 2013

Since: Feb 13

Chandigarh, India

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#1
Feb 8, 2013
 
When crews prepared to drill the giant new cavity under Second Avenue, they first had to freeze the ground to about minus 20 degrees so as not to destabilize the buildings above as the boring machine cut through. For that, aluminum tubes were inserted from the street and a special chemical solution was poured into the ground and cooled by a refrigeration plant.
Faloola Chong

Worksop, UK

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#2
Feb 8, 2013
 
boring is the word

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