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I-66 Rosslyn Tunnel early morning planned electrical outage May 10

Tunnel will temporarily have no working lighting as part of tunnel rehabilitation project

Interstate 66 traffic alert

ROSSLYN – Weather permitting, eastbound and westbound I-66 in the Rosslyn Tunnel will have a planned electrical outage Saturday, May 10, from 3 a.m. to 8 a.m. to tie the new tunnel lighting into the existing lighting system as part of the tunnel rehabilitation project, according to the Virginia Department of Transportation.

The entire tunnel will not have any working lighting during that time.

Drivers are asked to use extra caution traveling through the tunnel and to make sure their headlights are on.

The I-66 Rosslyn Tunnel rehabilitation project is rehabilitating and making improvements to the Rosslyn Tunnel that carries I-66 under North Nash Street, Fort Myer Drive, North Lynn Street and Gateway Park. The tunnel, nearly a fifth of a mile long, was built in 1983.

The improvements include:

  • Removing the tunnel ceiling to improve long-term maintenance.
  • Replacing loose or damaged ceiling tiles.
  • Upgrading electrical systems.
  • Installing a new fireproofing system.
  • Repairing steel beams, abutment and pier concrete, and joints.
  • Cleaning and repairing bearings.
  • Replacing the tunnel lighting system.

The project is scheduled for completion this summer.

Drivers are reminded to use caution when traveling in active work zones. Be alert to new traffic patterns and limit distractions.  

You can get traffic, work zone and incident information online at 511.vdot.virginia.gov, via the free mobile 511Virginia app, or by calling 511 in Virginia anywhere anytime.

Follow VDOT Northern Virginia on Twitter: @vadotnova

Last updated: June 6, 2025

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