[VIDEO] Why Amtrak’s Most Important Tunnels Are Doomed

The vital North River Tunnels, connecting Manhattan's Penn Station to Secaucus, NJ, are the most heavily trafficked rail tunnels in North America. Built in the early 1900s, these tunnels were severely damaged by saltwater flooding during Hurricane Sandy in 2012. The saltwater left behind corrosive chlorides and sulfates, which are causing the concrete to crack and expand, and the internal rebar to rust and disintegrate. This ongoing degradation leads to frequent disruptions, including concrete falling on tracks, electrical failures, and false signals, necessitating nightly inspections and emergency repairs. The proposed solution is the $16 billion Gateway Program, which involves constructing entirely new tunnels—the Hudson Tunnel Project—to double track capacity and allow for extensive, long-overdue repairs on the existing North River Tunnels. This new infrastructure is projected to be completed by 2035, narrowly avoiding the predicted complete failure of the old tunnels.