Why New York City's Flooding Its Own Subway Entrances

MTA reassured disoriented New Yorkers that it's flooding subway entrances on purpose, to test barriers that it hopes will guard the system against another Sandy.

1 minute read

November 27, 2019, 6:00 AM PST

By Philip Rojc @PhilipRojc


New York Subway

Kristi Blokhin / Shutterstock

When one pedestrian passed an entrance to the New York subway's G train in South Williamsburg, "she saw something was very off," writes Zoe Schlanger. "The station entrance, a staircase leading underground, was completely flooded. The water level appeared so high as to be flush with the sidewalk."

When her photo went viral, the Metropolitan Transit Authority clarified that it's "testing a barrier that could seal off subway entrances in the event of another flood like the one that hit the city during Hurricane Sandy in 2012."

Schlanger notes that the 2012 hurricane inundated several subway lines, leading to a whopping $5 billion in damage. "The MTA explicitly draws the connection between storm surge preparedness and climate change in several of its projects," she reports. As the MTA put it, "We're doing this because climate change is real."

Thursday, November 21, 2019 in Quartz

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

High-rise apartment buildings in Waikiki, Hawaii with steep green mountains in background.

Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss

The plan would reduce visitor accommodation by 25,% resulting in 1,900 jobs lost.

April 6, 2025 - Honolulu Civil Beat

Two yellow and white Dallas Area Rapid Transit light rail streetcars at station in Dallas, Texas.

North Texas Transit Leaders Tout Benefits of TOD for Growing Region

At a summit focused on transit-oriented development, policymakers discussed how North Texas’ expanded light rail system can serve as a tool for economic growth.

April 3, 2025 - KERA News

Blue and white Seattle Link light rail train exiting concrete Downtown Bellevue Tunnel in Bellevue, WA.

Why Should We Subsidize Public Transportation?

Many public transit agencies face financial stress due to rising costs, declining fare revenue, and declining subsidies. Transit advocates must provide a strong business case for increasing public transit funding.

April 7, 2025 - Todd Litman

Amtrak Acela

How to Make US Trains Faster

Changes to boarding platforms and a switch to electric trains could improve U.S. passenger rail service without the added cost of high-speed rail.

3 hours ago - Bloomberg CityLab

Mural showing tools and craft supplies with banner reading 'Things are made here' in front of makerspace in Columbia, Missouri.

Columbia’s Revitalized ‘Loop’ Is a Hub for Local Entrepreneurs

A focus on small businesses is helping a commercial corridor in Columbia, Missouri thrive.

4 hours ago - Next City

Close-up of wood log with emerald ash borer larvae tracks etched in the wood.

Invasive Insect Threatens Minnesota’s Ash Forests

The Emerald Ash Borer is a rapidly spreading invasive pest threatening Minnesota’s ash trees, and homeowners are encouraged to plant diverse replacement species, avoid moving ash firewood, and monitor for signs of infestation.

5 hours ago - The Bemidji Pioneer