Palisades Twin-Tube Tunnel, United States, New York (us/21)

Calling enthusiasts to participate in a tender that has been announced for the excavation by 2 hard rock TBMs of the Palisades twin-tube tunnel (1,55 km/5,100 feet length and 63.5 m diameter) from the tunnel portal at Tonnelle Avenue construction site eastward into the Hoboken Shaft. The tunnel will be equipped with 6 cross passages built by drill & blast techniques.

The related tender documents are attached here.

For further information, please contact:
– Email: procurement@gatewayprogram.org