Abstract

As part of the $6.3B East Side Access Project (ESA), four bored tunnels and two cut and cover sections will be constructed through contaminated groundwater. The tunnels will be constructed under an active railroad yard and the main line of the Long Island Rail Road (LIRR). This paper addresses the technical challenges related to control of contaminated ground water during tunnelling including construction and monitoring approaches identified to control movement of contaminated ground water. (A) This paper was presented at Safety in the underground space - Proceedings of the ITA-AITES 2006 World Tunnel Congress and the 32nd ITA General Assembly, Seoul, Korea, 22-27 April 2006. For the covering abstract see ITRD E129148. Reprinted with permission from Elsevier.

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