Hudson Tunnel project advances with $88-million riverbed preparation plan
(UI) — The Gateway Development Commission (GDC) has approved an $88 million change order to advance riverbed preparation for the Hudson Tunnel Project, clearing the way for tunnel boring beneath the Hudson River, which is scheduled to begin in 2028.
The additional work expands the scope of the project's Hudson River Ground Stabilization contract with Weeks Marine, a Kiewit subsidiary. Crews will remove approximately 500 submerged timber piles remaining from the former Pier 68 and stabilize the riverbed to reduce the risk of obstructions during tunnel boring machine (TBM) operations.
According to GDC and Construction Dive, the work will extend the original construction area by approximately 265 feet toward Manhattan. Following pile removal, crews will strengthen the surrounding riverbed by mixing lightweight concrete into the soil, creating more stable ground conditions for the TBMs. The project team will also continue using cofferdams to protect construction activities from strong river currents and address voids left by extracted piles.
Weeks Marine is already mobilized on the Hudson River and is expected to begin work associated with the change order later this year, Construction Dive reported. The company has been performing riverbed preparation since 2024 and previously completed test pile removals to refine construction methods.
GDC officials said the additional work is intended to reduce construction risk ahead of the start of tunneling and help keep the Hudson Tunnel Project on schedule. The new rail tunnel will supplement the existing century-old tunnels connecting New Jersey and New York and is a key component of the broader Gateway Program.
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