By Jared Ebersole in Video — 05 Mar 2026

New York's First Subway Was a Pneumatic Tube Under Broadway

Alfred Ely Beach built a secret air-powered subway under Broadway more than a century before the Hyperloop became a tech-world fantasy.

New York built a working pneumatic subway long before the Hyperloop became a pitch deck.

It was short. It was strange. It ran for only a few years. But it really carried passengers through a tube under Broadway, pushed by air, while the city above had no idea what was being built below.

Where it was

Beach Pneumatic Transit ran under Broadway between Warren Street and Murray Street in Lower Manhattan, near today's City Hall area.

Elon Musk's 2013 Hyperloop paper described capsules traveling through low-pressure tubes at very high speeds. The modern concept used electric propulsion, air bearings, and aerodynamic control inside a near-vacuum environment. It sounded futuristic because it borrowed the language of software, rockets, and Silicon Valley scale.

The old dream was simpler: put a vehicle in a tube and use air pressure to move it.

Alfred Ely Beach, editor of Scientific American and a relentless inventor, had been thinking about pneumatic transit in the 1860s. New York's streets were crowded with horses, carts, pedestrians, omnibuses, and elevated-rail dreams. Broadway was a bottleneck. The city needed rapid transit, but politics made almost every proposal a fight.

The biggest obstacle was William M. "Boss" Tweed, the Tammany Hall power broker whose machine dominated city government. Beach wanted to build an underground passenger system. Tweed and his allies were tied to competing transit interests and had little reason to hand Beach the future of Broadway.

So Beach used a cover story.

He got permission for a pneumatic mail tube, the kind of utility project that sounded small enough to be ignored. Then, beneath a rented storefront near Broadway and Warren Street, his crew built something much larger: a passenger tunnel. The work began in 1869 and the line opened to the public on February 26, 1870.

The result was barely a subway by modern standards. It was a single station, a single car, and about 300 to 312 feet of tunnel. But the station was lavish, with chandeliers, a grand piano, and a sense of theatrical confidence. The car was moved by a giant fan, a Roots blower, that pushed air through the tube. Reverse the airflow and the car came back.

That is the part that makes the comparison irresistible.

Beach's system was not the Hyperloop. It was not low-pressure high-speed travel, and it was not meant to cross California at hundreds of miles per hour. But both ideas came from the same basic fascination: if wheels on open streets are messy, perhaps vehicles inside tubes can be smoother, cleaner, and faster.

The public loved Beach's subway. Hundreds of thousands of riders reportedly paid 25 cents to experience it. The ride was less transportation than demonstration, but demonstrations matter. For a brief moment, New Yorkers could step below Broadway and see a different future, one where the city moved underground instead of fighting for space at street level.

Then the future stalled.

Beach tried to expand the line, but politics, financing, and the Panic of 1873 killed the project. The tunnel closed. The station disappeared into building basements and city memory. New York would not open its actual subway system until 1904, decades after Beach proved that New Yorkers were willing to ride below the street.

The rediscovery became part of the legend. In 1912, workers excavating for a later subway project broke into remnants of the old Beach tunnel. Accounts say they found remains of the car, the tunneling shield, and even the old station furnishings. A forgotten future had been sitting under Broadway while the real subway grew above and around it.

That is the best way to read Beach Pneumatic Transit: not as a failed Hyperloop, but as a prototype for the city's imagination.

It showed that New York's problem was never a lack of ideas. The city has always been full of people who can draw, dig, finance, and announce the future. The harder problem is getting politics, capital, engineering, and public need to line up long enough for the future to become boring infrastructure.

The Hyperloop is still mostly a promise and a test-track story.

Beach's tube was a dead end. But at least passengers bought tickets and rode it.