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Re: New details on East Side Access construction; photos

Posted by JRice on Fri May 4 08:30:15 2007, in response to Re: New details on East Side Access construction; photos, posted by SMAZ on Fri May 4 02:22:35 2007.

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Revised alignments and profiles have been created that keep a 3D envelope clear of ESA works until past 43rd Street. Not too hard to do except just across Northern Blvd in Yard A. In this area, the contract docs for the current open-cut work prohibit tiebacks intruding on these alignments. At the bellmouth, the LIRR segment will be designed to support one of the sidewalls of the Manhattan-bound alignment due to the obvious proximity as the tunnels are back to 2-over-2. A Yard Services Building, which will begin design soon, will require a grade beam foundation to keep footings/piles out of the eastbound alignment.

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