Pennsylvania Railroad's Original Hudson Crossing (1903-1910)
The Pennsylvania Railroad spent seven years and over $100 million (roughly $3 billion in today's dollars) tunneling under the Hudson River and building Pennsylvania Station, creating the first direct rail link between New Jersey and Manhattan. The project required pioneering engineering in compressed-air tunneling and electrified propulsion.
Penn Station opened in 1910 as the largest train station in the world, transforming Manhattan's West Side and enabling through-service to New England.
The tunnels and infrastructure built over a century ago remain in daily use today—handling 450 trains per day far beyond their designed capacity. No new trans-Hudson rail capacity has been added since.
Gateway aims to accomplish what the Pennsylvania Railroad did in 1910: build new tunnels under the Hudson to expand rail capacity. The original infrastructure has lasted 115 years but is now failing, making its eventual replacement both overdue and unavoidable.
