INFRASTRUCTURE

Preliminary engineering on Hudson Tunnel Project enters new phase

In preparation for the start of construction on the Hudson Tunnel Project in 2023, critical supplemental subsurface geotechnical investigations have begun on the west side of Manhattan, New York, USA, to analyse soil and rock characteristics and provide information to engineers about underground conditions.

 A cross section of the location in Manhattan where additional geotechnical borings are being conducted for the Hudson Tunnel Project

A cross section of the location in Manhattan where additional geotechnical borings are being conducted for the Hudson Tunnel Project

Geotechnical borings are being drilled more than 100ft underground at thirteen locations on recently acquired property at 260 Twelfth Avenue in Manhattan. The additional borings were identified during a 2019 ‘Request for Information' process that sought the input of private industry.

Data from the programme will inform the geotechnical baseline report, a key input into the Hudson Tunnel Project's request to enter the engineering phase of the Federal Transit Administration's Capital Investment Grant (CIG) programme.

"The Hudson Tunnel Project will put thousands of people to work building needed American infrastructure," said Balpreet Grewal-Virk, Gateway Commission co-chair and New Jersey commissioner. "With the dollars and loan benefits available in the Federal Infrastructure Bill and the analysis of underground conditions we are undertaking, the project is taking big steps toward the start of full construction."

"Beginning this final phase of the geotechnical boring programme is a key milestone for the Hudson Tunnel Project," added Steven M. Cohen, Gateway Commission co-chair and New York commissioner. "We continue to do everything we can to move the project closer to the start of construction as quickly as possible."

With a Record of Decision issued by the US Department of Transportation in May, Amtrak was able to move quickly to acquire one of the properties needed for the project on Block 675. The acquisition was incorporated into the updated financial plan, saving the Hudson Tunnel Project more than US$700 million in cost estimates related to the escalation and risk increases from delays to the project during the prior Federal Administration.

"Amtrak's financial commitment to the Hudson Tunnel Project included acquisition of property interests in New York," said Tony Coscia, Gateway Commission vice chair and Amtrak Commissioner. "Acquiring the property necessary to advance this engineering work not only moves the project closer to full construction, but also helps mitigate cost increases in the project associated with the passage of time."

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