I rode the L train to my hotel in Brooklyn on a trip last summer. The service was a bit disrupted because of track work. Looks like the track work is finished, ahead of schedule and under budget.
NYCT Canarsie Tunnels Repair Completed
And there's even an Amtrak angle:
NYCT Canarsie Tunnels Repair Completed
And there's even an Amtrak angle:
A variation of Canarsie Tunnels rehabilitation may be used on the North River Tunnels (Hudson Tunnels) between New Jersey and New York Penn Station on Amtrak’s Northeast Corridor. Part of the proposed Gateway Program includes two new tracks in new tunneling under the Hudson River, but Gateway’s proponents have consistently pushed for a project schedule that called for completing the new tunnel before the existing ones would be repaired. That would take at least ten years, although Gateway Vice Chair and Amtrak Board Chair Anthony R. Coscia expressed doubt that the existing tunnels were certain to last even five more years, while continuing to alarm the public and disparage the method used to rehabilitate the Canarsie Tunnels.
U.S. Transportation Secretary Elaine Chao later called for the method used to repair the Canarsie Tunnels to be used on the Hudson Tunnels. “I’m pleased to report that the [USDOT] is working closely with Amtrak to advance rehabilitation work on the existing Hudson Tunnels,” she said. “Given the time, the cost and the complexity of building entirely new tunnels, the Department is working with Amtrak to design and validate a faster and more cost-effective method to improve safety and functionality as the first order of business. So, beginning rehab work in the near term is the right move, not waiting years for the construction of new tunnels beforehand.”