Skip to main content

Lane closure and traffic impact updates

Happening this weekend, April 17-19

Friday, April 17:

  • Double lane closure on northbound I-495 between the Dulles Toll Road and George Washington Memorial Parkway, from 9:30 p.m. to 5 a.m., for bridge work.
  • Single lane closures on eastbound and westbound Georgetown Pike between Linganore Drive and Balls Hill Road, from 9:30 p.m. to 5 a.m., for permanent signal and median work.

Upcoming highlights, April 20-24

  • I-495 North and South Daytime mobile lane closure and ramp narrowing; day- and nighttime single lane and shoulder closures; nighttime single and multi-lane closures and ramp closures with detours
  • George Washington Memorial Parkway – Daytime single lane closure, shoulder closure, and ramp narrowing; nighttime ramp closure with detours
  • Georgetown Pike Day- and nighttime single lane closure and ramp narrowing; nighttime single lane closure
  • Lewinsville Road – Daytime flagging operations 
  • Balls Hill Road – Daytime flagging operations, single lane closure, and lane shift
  • Dulles Toll Road and Dulles Airport Access Highway – Daytime single lane and shoulder closures; nighttime single and triple lane closures, full closures with detours, and ramp closures with detours

Only shoulder closures and ramp narrowings will be allowed on Tuesday, April 21 during the daytime due to Election Day.

Please note that all work is weather dependent and may be cancelled and rescheduled or prolonged if necessary.

Sign up for construction and lane closure updates

Get the latest 495 NEXT construction news and traffic alerts delivered to your inbox.

Traffic alerts

04/21/2026

Overnight ramp closures and detours at I-495 and Dulles Toll Road Interchange scheduled tonight, Tues., April 21 and Wed., April 22

Single lane closure on WB Dulles Toll Road between Route 123 and I-495 also planned

FAIRFAX, VA - Ramp closures and detours are planned at the I-495 and Dulles Toll Road (Route 267) interchange tonight, Tuesday, April 21, and tomorrow night, Wednesday, April 22. These closures are necessary to accommodate milling and paving operations as part of the 495 NEXT project. In the event of inclement weather or other delays, this work will be rescheduled for the following night.

11/22/2025

495 Express Lanes Extension to Open Sunday Morning, Nov. 23

Closures and detours tonight beginning at 8 p.m.

FAIRFAX, VA - The 495 Express Lanes Extension (the Extension) is scheduled to open tomorrow morning, Sunday, Nov. 23. The two-and-a-half-mile Extension spans from near the Dulles Corridor Interchange to just before the American Legion Bridge, and includes new connecting ramps.

Past weekly lane closures

Last updated: April 22, 2026

Please note that this file is not ADA compliant. Choose one of below options: