NYC Tunnels Prep Flood Defenses for Storm Season

MTA schedules overnight lane closures for flood door testing at two NYC tunnels in May

MTA Tests Flood Doors at Two NYC Tunnels in May

Drivers using two major New York City tunnels will face overnight lane closures in May as MTA Bridges and Tunnels conducts flood door testing. The Hugh L. Carey Tunnel tests run from April 30 to May 9, 2026, while Queens Midtown Tunnel tests are scheduled for May 16, 17, 30, and 31, 2026. The tests prepare the tunnels' flood protection systems for potential hurricanes or tropical storms.

Storm Preparation Drives Testing Schedule

The flood door tests are part of the MTA's hurricane and tropical storm preparedness program, officials said. Each tunnel is equipped with massive flood doors weighing over 20 tons that can seal off tunnel tubes during severe weather events. The doors can only be deployed when a tunnel tube is completely closed to traffic, making overnight testing essential to minimize disruption while ensuring the protection systems function properly. Transit agencies typically conduct such tests annually before hurricane season begins.

One Tube Closes During Each Test

During each testing period, one tube of the affected tunnel will be fully closed while crews deploy and test the flood doors. The remaining tube will stay open with one lane available in each direction, officials said. The Hugh L. Carey Tunnel connecting Brooklyn and Manhattan will undergo testing over 10 consecutive nights starting April 30. The Queens Midtown Tunnel tests will occur on four separate nights in mid-to-late May. All tests are scheduled during overnight hours when traffic volumes are lowest.

Tests Complete by End of May

All flood door testing at both tunnels is scheduled to be completed by the end of May 2026, officials confirmed. The testing schedule includes specific dates and times for each tunnel tube, though officials didn't release the detailed hour-by-hour breakdown. The MTA typically completes such preparedness work before the Atlantic hurricane season officially begins June 1.

Drivers Should Plan for Delays

Motorists using either tunnel during testing periods should expect delays and consider alternate routes during overnight hours, officials said. The single-lane configuration in the open tube will significantly reduce capacity compared to normal operations. Drivers can check Moovit for real-time updates on tunnel conditions and alternate route options during the testing periods.