The Hudson River Tunnel project – one of the core elements of the Gateway Program – will deliver a new two-track rail tunnel beneath the Hudson River and rehabilitate the existing, century-old North River Tunnels, which connect New Jersey and Manhattan. The goal is to modernize the busiest segment of the Northeast Corridor, add capacity and ensure long-term reliability for hundreds of thousands of daily riders.
What challenges is STV addressing?
The project addresses some of the most complex conditions in U.S. rail infrastructure, including deteriorated tunnels damaged by Superstorm Sandy, limited working space in dense urban environments, challenging geotechnical conditions beneath the Hudson and the need to maintain full rail operations throughout construction. The multi-package delivery approach also requires extensive coordination among agencies, contractors and stakeholders to manage risks, environmental requirements and procurement of major equipment such as tunnel-boring machines.
What solutions is STV delivering?
STV, in joint venture, is leading multidisciplinary design for key components of the new tunnel, including civil, structural, geotechnical and systems engineering. The team is providing detailed construction package development, TBM support, ground stabilization design and integration of the new tunnel with the broader Gateway Program. STV is also supporting program controls, procurement planning and technical reviews to help streamline the delivery of this nationally significant megaproject.
How will the project improve rail service and the region?
The new tunnel will significantly enhance reliability, reduce delays and increase capacity across the Hudson River – doubling the number of tracks into Penn Station and enabling rehabilitation of the existing tunnels without service disruptions. The project strengthens economic resilience across the Northeast, improves long-term mobility for commuters and intercity passengers and provides a modernized foundation for future growth along the nation’s most heavily traveled rail corridor.
Key Stats and Accolades
- New two-track Hudson River tunnel plus rehabilitation of existing North River Tunnels
- STV serves as designer-of-record and program management partner
- Improves capacity, reliability and long-term corridor resilience
- Supported by major federal investment through the Infrastructure Investment & Jobs Act
