The Palisades Tunnel Project will construct the first mile of twin-tunnels on the New Jersey side of the Hudson River.
The Palisades Tunnel Project is the first tunnel boring project of the Hudson Tunnel Project (HTP).
The project includes boring two parallel tunnels approximately 5,100 feet long with an inside diameter of 25 feet 2 inches and six cross passages, as well as furnishing and installing a concrete tunnel lining with waterproofing membrane.
It also involves building the new Hudson County Shaft, which will be used to remove the tunnel boring machines (TBMs) when digging is complete.
Tunnel Boring Machines
The Palisades Tunnel Project will use two single shield TBMs. These machines will bore the two parallel tunnel tubes, installing the concrete tunnel liner behind them as they go. They will build approximately 30 feet of new tunnel per day.
The cutterhead of each TBM measures 28 feet, 8 inches in diameter, and the gantries stretch back roughly 500 feet. Each machine weighs 1,680 tons.
Quick Facts
Project Purpose
- Construct the first mile of tunnels on NJ side of Hudson River
- Build shaft to remove the tunnel boring machines after completion
Notable Elements
- First tunnel boring project of the HTP
Contact Information
- 1-800-444-1050
- NJConstruction@gatewayprogram.org
Upcoming Construction
Current Activities & Next Steps
Construction of the Palisades Tunnel launched in August 2024 and is expected to conclude in 2027.
You can see the progress we are making in real time via the EarthCam below! Click and drag the image to pan the camera. New photos are uploaded from the work site every day, and you can use the buttons below the image to peruse an archive of past photos.
Join GDC’s New Jersey Construction Notice Mailing List
The Gateway Development Commission sends out regular Construction Notices in advance of upcoming work. To be added to GDC’s New Jersey Construction Notice mailing list, please fill out the form below: