The Gateway Program has completed the geotechnical investigation work, a necessary part of entering the engineering phase of the $5.6 billion Federal Transit Administration Capital Investment Grant (CIG) it is seeking for the Hudson Tunnel Project.
New Jersey Business reported that the project completed a total of 75 geotechnical investigations. The borings included 64 borings in New Jersey and New York over several years, 37 of which were during the recently completed Phase 2 Supplemental Geotechnical Boring Program plan based on input from the private sector. The samples obtained from the borings will inform the design and engineering planning for full construction of the project.
The borings were completed in Secaucus, along the future above-ground alignment, in Union City, along the future Palisades Tunnel alignment, at the Hoboken Project Site, along the future Hudson River Tunnel alignment under the Hudson River, and in Manhattan, at the Hudson River Park and at the 12th Avenue Project Site. Samples were taken at depths ranging from 14 m to 154 m (48 ft to 505 ft).
The project also completed five Cone Penetration Tests, four Seismic Cone Penetration Tests, a marine geophysical survey in the Hudson River, and a surface-based geophysical survey along the Hudson Bergen Light Rail (HBLR) tracks in New Jersey.
In a joint statement, Gateway Development Commission co-chairs Steven M. Cohen of New York and Balpreet Grewal-Virk of New Jersey, along with vice-chair Tony Coscia of Amtrak, said: “Finishing geotechnical investigations to reduce risk and provide certainty on where and how to dig the first rail tunnel under the Hudson River in a century is a major accomplishment. This work is another example of our partners working together to advance the tunnel project as far as we possibly can in preparation for full funding and construction.
“From building two sections of the tunnel casing in Manhattan, to advancing the design of the project to 30 percent, to achieving all the project’s regulatory approvals, to completing this geotechnical work, we and our partners have shown over and over that no obstacle will stand in the way of finally delivering 21st Century rail transportation between New York and New Jersey.”