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Exchange Place Station - Path Line Improvements

Tunnel excavation geometries, lattice girder geometries and layout.
Estimated cost: Commencement:
October 01, 2002
Completion date:
October 01, 2003
225 Park Ave S
New York, NY 10003
United States
Technical data:
Geology description:

Heavy foliated gneiss, schist, schistose gneiss with pegmatite intrusions occasional amphibolite; transitional (slope/rise) rock.

Geology types:
Bid cost: Final cost:
$25 million USD
Service areas:
Construction methods:

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.

3D Model of Exchange Place station
Lattice girder and shotcrete for support