Palisades Tunnel
New York, USA
TBM rock - Single shield
Construction method
1.551 m
Excavated length
7.67m/8.84m
Internal Diameter / Excavation
2 TBM
TBM number
The Palisades Tunnel is a key component of the Hudson Tunnel Project, a strategic infrastructure programme designed to increase rail capacity along the United States Northeast Corridor and strengthen connections
The project involves the construction of two parallel railway tunnels beneath the Palisades cliffs, forming the first excavated section of a new rail link that will ultimately connect with Penn Station beneath the Hudson River.
Dragados is carrying out the works using two state-of-the-art hard rock tunnel boring machines excavating through Palisades Diabase, one of the hardest rock formations currently being tunnelled in North America.
The development also includes cross passages, a major retrieval shaft and associated railway infrastructure aimed at increasing the capacity and resilience of one of the country’s most important rail corridors.
Project data
Project data
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Two tunnels of 1,550 m each
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185,000 m³ excavation volume
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8.73 m excavation diameter
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7.70 m internal diameter
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Excavated using 2 hard-rock TBMs
·
6 cross passages
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36 m-deep retrieval shaft
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Excavation through diabase exceeding 200 MPa
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Part of the Hudson Tunnel Project
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Ongoing project. Construction started in 2024
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