The current route, about long, includes infrastructure that was built in the 1900s and 1910s. The system operates at capacity during peak hours—24 trains per hour—and limits speed for safety reasons. In the 2010s, the station received a $173 million reconstruction and expansion. Unrelated to the Gateway Program, it was funded by the PANYNJ, which owns and operates the PATH, and the
Federal Transit Administration.
Sawtooth Bridges-Kearny Meadows At the
Sawtooth Bridges at east of the former
Manhattan Transfer, the rights-of-way of Amtrak, and PATH, and several NJT lines converge and run parallel to each other. While there is no junction with PATH, NJT trains can switch tracks, depending on their terminal of origination or destination, enabling
Midtown Direct trains on the
Morris and Essex Lines to join or depart the
Northeast Corridor. A proposed Portal South Bridge, which is not funded as of 2025, would double the number of tracks to four, thus matching the rest of the Northeast Corridor. The old Portal Bridge is a two-track, rail-only,
swing bridge over the
Hackensack River between
Kearny and
Secaucus. Its design limits train speeds, temporarily prohibits crossings when open, and requires frequent and costly maintenance. though not during weekday rush hours, when trains have priority. In addition to the drawbacks that come with the swing bridge design itself, due to its substantial age and bad state of repair the Portal Bridge frequently failed to close properly after swinging back, causing major disruptions for riders on
NJ Transit and Amtrak. In December 2008, the
Federal Railroad Administration (FRA) approved a $1.34 billion project to replace the Portal Bridge with two new bridges: a three-track bridge to the north, and a two-track bridge to the south. In June 2020, Trump informed NJ Governor
Phil Murphy that he would no longer oppose the Portal Bridge replacement, allowing the project to begin once it could be properly financed. Construction on the Portal North bridge began on August 1, 2022. The first of the Portal North Bridge's three arches was floated into place in November 2024, and the last arch was floated into place in February 2025. The first track on the bridge entered service on March 13, 2026.
Secaucus Junction–Bergen Loop Opened on December 15, 2003, at a cost of $450 million,
Secaucus Junction (at ) is an
interchange station served by nine of New Jersey Transit's rail lines, and is sited where
Hoboken Terminal trains intersect with those traveling along the
Northeast Corridor. Passenger transfers are possible, but there is no
rail junction. While Access to the Region's Core had planned a loop to create a junction, original plans for the Gateway Program did not. Amtrak trains pass through the station, but do not stop there, nor are there plans to include an Amtrak stop. to the NEC at Secaucus Junction. MTA constituencies are encouraging the agency to include funding for the loop its capital plan. If a loop were built, passengers bound for New York Penn Station would not need to use Secaucus Junction for transfers. Trains using the loop would also increase the capacity demands on the already over-capacity NEC, which the Gateway Program is designed to alleviate. Suburban property owners along the
Main Line/
Bergen County Line and
Pascack Valley Line would stand to gain economically as property values have increased significantly along commuter rail lines once they were upgraded to offer "single-seat commutes".
Tunnels The Gateway Program would build two new tunnels, doubling the rail capacity. the Gateway proposal would allow an additional 24 trains per hour.
North River Tunnels The North River Tunnels were 102 years old when they were inundated by seawater from Hurricane Sandy in October 2012. If the new Hudson Tunnel is not built, the North River Tunnels will have to be closed one at a time, reducing weekday service below the existing level of 24 trains per hour. Due to the need to provide two-way service on a single track, service would be reduced by over 50 per cent. In May 2014, Amtrak CEO Joseph Boardman told the
Regional Plan Association that there was something less than 20 years before one or both of the tunnels would have to be shut down. As a result of the storm damage and the tunnels' age, component failures regularly occur within the tubes, resulting in frequent delays. One report in 2019 estimated that the North River Tubes and the Portal Bridge contributed to 2,000 hours of delays between 2014 and 2018. The North River Tunnels need to be repaired without major reductions in weekday service, making it necessary to have new tunnels built. Once the new tunnels open, the two North River Tunnels would close for repairs, one at a time, with the existing level of service maintained. This is because the new tunnel would be located further south–there would be no access to Track 19, and Tracks 9–18 would only have access to the tunnel by the single I ladder-track. Once the new North River Tunnels reopen in 2030, capacity on the line would be doubled. The Hudson Tunnel Project would also allow for resiliency on the Northeast Corridor to be increased, making service along the line more reliable with redundant capacity.
Hudson Tunnel The Gateway Hudson River tunnel, one point of which would be at , will travel from a point at
Weehawken Cove under the
Hudson River and its eastern portal south of
West Side Yard in Manhattan. Surveys of properties that would or would not be affected by underground construction at the underground eastern end of the ARC Tunnel had been completed. In April 2011, $188 million in federal funding was requested for preliminary engineering studies and environmental analysis. On May 2, 2016, the FRA published a Notice of Intent to jointly prepare an
environmental impact statement (EIS) with NJ Transit for the Hudson Tunnel Project under the National Environmental Policy Act (NEPA). The EIS will evaluate the potential environmental impacts of a reasonable range of alternatives, including a no-build alternative. As appropriate, FRA and NJ Transit will coordinate with Amtrak and PANYNJ on the EIS. The ARC Tunnel was to be built in three sections: under the Hudson Palisades, under the Hudson River, and under the streets of Manhattan, where it would have dead-ended. The Hudson Tunnel will likely be built along the footprint of the Palisades and river sections, but will enable trains to join the current
interlocking once it emerges. A
flying junction is planned for later stages. This will allow Amtrak and NJT to continue to use the
East River Tunnels and
Sunnyside Yards for staging, storage, and carrying Amtrak NEC trains. By mid-2024, the first tunnel boring machine was scheduled to begin digging in late 2024 or early 2025, while a second TBM was to begin digging in 2026. Each TBM was expected to take two years to finish excavating its respective tube. Though tunneling had still not begun by mid-2025, both of the TBMs were nearly fully assembled by then, and work was scheduled to begin in mid-2026. In April 2026, the Gateway Development Commission hired Traylor–Walsh–Skanska Joint Venture to construct the tunnel for about $1.29 billion.
Palisades Tunnel A
groundbreaking for ARC was held on June 8, 2009, for new underpass at , under
Tonnelle Avenue in
North Bergen near the site western portal of the tunnel through
Hudson Palisades just south of the
North River Tunnels. The land, which cost $26.3 million, is owned by NJT. A tunneling contract for the Palisades Tunnel was awarded on May 5, 2010, to
Skanska. Maps indicate this part of the Hudson Tunnel would follow a route to the
Weehawken-
Hoboken border. Federal funding of $25 million for the completion of an overpass carrying
U.S. Route 1/9 above the New Jersey portal was authorized in June 2023, and the Gateway Development Commission awarded $47.3 million in contracts that September to raise Tonnelle Avenue above the portal. Work on the Tonnelle Avenue overpass began in November 2023.
Hudson Yards "tunnel box" and West Side Yard The air rights over the
West Side Yard are being developed as a residential and commercial district on a platform constructed over the yard as part of the
Hudson Yards project. Placing a new Amtrak portal in Manhattan could have conflicted with the Hudson Yards project, which broke ground in late 2012. in June 2013 it was announced that $183 million had been dedicated to the "tunnel box" as part of
Hurricane Sandy recovery funding. Construction began on the first phase, from 10th Avenue and 11th Avenue between 31st Street and 33rd Streets, on September 23, 2013, at . The underground concrete casing for the first phase was long, wide, and about tall. Amtrak awarded
Tutor Perini a $133 million contract to build a section of box tunnel. This portion was completed a year later. Amtrak, NJ Transit, and the MTA applied to the
Federal Transit Administration for a $65 million matching grant for another long structure to preserve the right-of-way at
11th Avenue in Manhattan under a viaduct that was rehabilitated in 2009–2011. Construction started in December 2014 and was nearing completion , though funding disputes stalled the tunnel box's completion. The tunnel box was substantially complete by November 2017. The following phase would extend the casing between 11th and 12th Avenue as the development of Hudson Yards continues westward. Work on the concrete tunnel box resumed in November 2023. In July 2025, workers diverted 12th Avenue so they could begin the
ground freezing of the riverbed, which in turn would allow workers to begin digging the tunnel under the river. To connect the tunnel to Penn Station, extensive track modifications will be required. The profile of several tracks will have to be lowered so that they can meet the grade of the new tunnel tracks at the new portal within A Yard. The I Ladder track, which runs diagonal to the other tracks to provide connections to the platform tracks, would be extended to connect to the new tracks from the tunnel, allowing trains to stop on Tracks 1 through 18. Some tracks within A Yard would be reconfigured. While construction takes place in A Yard, the three trains stored in A Yard and D Yard would be stored in other locations due to the unavailability of storage tracks in those yards. The Empire Line tunnel, near Tenth Avenue, will be modified: 100 feet of that tunnel beneath Tenth Avenue will be lowered so its tracks can connect to the lower track profile in A Yard. This work will be done during weekends over a 20-month period, or through a full closure of the Empire Line tunnel for two to three months. All of this work would take 21 months. It is used by
Amtrak,
New Jersey Transit, and the
Long Island Rail Road (LIRR), and served by several
New York City Subway lines. Between 1976 and 2010 weekday train movements increased 89%, from 661 to 1,248, reaching what is considered to be capacity. Penn Station is part of the
Pennsylvania Plaza complex that includes
Madison Square Garden (MSG).
Moynihan Train Hall , as seen looking southeast at the rear of the building. In the early 1990s, then-New York Senator
Daniel Moynihan championed a proposal to convert the
James Farley Post Office to a train station. Opened in 1912, soon after the original Pennsylvania Station, the landmark building stood across from Penn Plaza and was built over tracks approaching the station from the west. In 2010, work began on a $267 million Phase 1. This phase consisted of an expansion of the Long Island Rail Road's underground West End Concourse, which ran under the Farley Building's main entrance, as well as two entrances to the existing Penn Station platforms through the Farley Building on Eighth Avenue. A
groundbreaking ceremony took place on October 18, 2010. In May 2012, the PANYNJ announced that a $270 million contract for the first phase, including the concourse expansion under 8th Avenue, had been awarded. The West End Concourse opened in June 2017. Phase 2 consisted of the new train hall in the fully renovated Farley Building. In January 2016, New York governor Cuomo announced plans for a combined Penn-Farley Post Office complex, a project estimated to cost $3 billion. At that time, the project was renamed Moynihan Train Hall. In August 2017, a groundbreaking ceremony was held for the Moynihan Train Hall. The train hall opened to the public on January 1, 2021.
Penn Station South Plans call for Penn Station South to be located on the block south of the current
New York Penn Station at 31st Street and diagonally across
Eighth Avenue from the post office, on land which is currently privately held. While the PANYNJ had been acquiring land for ARC along its route, acquisition south of the station has not begun. Plans call for seven tracks served by four platforms in what will be a
terminal annex to the entire station complex. Based on development guidelines from the
New York City Planning Commission, it is estimated that at 2015 prices it would cost between $769 million and $1.3 billion to buy the block bounded to the north and south by 31st and 30th streets, and to the east and west by Seventh and Eighth avenues. Real estate prices are 2½ times higher now than they were in 2012 according to prominent real estate firm
Cushman & Wakefield. ==Related projects==