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Exchange Place Station - Path Line Improvements
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| Service: | Tunnel excavation geometries, lattice girder geometries and layout.
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| Estimated cost: | Commencement: | October 01, 2002
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Completion date: | October 01, 2003
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| Location: | 225 Park Ave S New York, NY 10003 United States |
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| Geology description: | Heavy foliated gneiss, schist, schistose gneiss with pegmatite intrusions occasional amphibolite; transitional (slope/rise) rock. |
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| Bid cost: | Final cost: | $25 million USD
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Description
Exchange Place is a key station on the PATH commuter rail service between New York and New Jersey. After the World Trade Center collapse, the station and river crossing running tunnels were closed. Precautions were taken to prevent flooding of the subway system from broken water mains and sewer lines. Turning existing elements into a terminus and extending the platform tunnels by 45m involved excavating new crossovers, modifying the 5 existing tunnels, raising the invert and crown up to 3m and back filling unneeded tunnel spaces to create the ground in which new spaces could be excavated.
