by Jeff Smith
https://www.nj.com/news/2023/05/price-t ... utType=amp
Price tag of Gateway Tunnel’s concrete box under Hudson Yards is $692M
On Tuesday, the Gateway Development Commission approved three resolutions that will lead to construction of last third of a larger tunnel box project that was started in 2013. The agreements include approving a market based cost estimate of $692.7 million and an agreement on how the funding will be divided between New York, New Jersey and Amtrak.
The tunnel box section extends diagonally from 11th Avenue to 30th Street under a Long Island Rail Road rail yard on west Manhattan.That section passes below the MTA train yard that was the site of Biden’s January event announcing the grant.
The Hudson Yards Concrete Casting 3 would be approximately 550 feet long, between 50 and 65 feet wide and between 27 and 38 feet high. The project involves building the “box out of heavily reinforced concrete ranging from 3.5 to 10-feet thick” and a waterproofing membrane to cover its perimeter, Gateway Development Commission documents show.
How will it be funded? Under the agreement approved by the commission’s board of directors, New Jersey and New York will each fund $69.27 million. Amtrak applied for and was awarded a $292.1 million mega grant for the last phase of the tunnel box, which Biden announced during his January visit. That grant will be Amtrak’s contribution.
Gateway officials also released very tentative schedules for the four projects that the tunnel project that calls for three projects that do preparatory work for the actual drilling starting in 2024. Actual drilling of the tunnel under the river that will use twin tunnel boring machines working from New Jersey to New York, would start in late 2025 and end in spring 2029.