495 NEXT LANE CLOSURES & TRAFFIC CHANGES

May 1-8, 2026

The following construction-related lane closures and traffic changes are planned in the I-495 Express Lanes Northern Extension (495 NEXT) project corridor. Travelers may encounter delays in this area. All work is subject to change based on weather and other factors.

Visit 511.vdot.virginia.gov for information on work zones and lane closures.

495 NEXT Project Area Map

Happening this Weekend

Friday, May 1:

Single lane and shoulder closures on northbound and southbound I-495 between Georgetown Pike and George Washington Memorial Parkway, from 9:30 p.m. to 8 a.m., for bridge work.

Ramps from eastbound and westbound Dulles Toll Road to northbound 495 Express Lanes closed and detoured, from 10 p.m. to 5 a.m., for noise wall work.

Ramp from northbound 495 Express Lanes to Route 7 closed and detoured, from 10 p.m. to 5 a.m., for sign work.

Saturday, May 2:

Single lane closures on northbound and southbound I-495 between Georgetown Pike and George Washington Memorial Parkway, from 9:30 p.m. to 9 a.m., for bridge work.

Ramps from George Washington Memorial Parkway to southbound I-495 and southbound 495 Express Lanes closed and detoured from 10 p.m. to 5 a.m., for bridge surface work.

Sunday, May 3:

Double lane closures on northbound and southbound I-495 between Georgetown Pike and George Washington Memorial Parkway, from 9:30 p.m. to 5 a.m., for striping work.

Upcoming Highlights

I-495 North and South – Daytime shoulder, mobile and single lane closures and ramp narrowing; 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 closures with detours

Georgetown Pike – Day- and nighttime single lane closure and ramp narrowing; nighttime single lane closure and ramp closure with detour

Balls Hill Road – Daytime flagging operations, single lane closure, and lane shift; nighttime lane shift

Dulles Toll Road and Dulles Airport Access Highway –  Daytime single lane and shoulder closures and ramp narrowing; nighttime single lane closures and ramp closures with detours

Dolley Madison Boulevard (Route 123) – Nighttime ramp closure with detour

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

Lane Closures by Location

I-495 (CAPITAL BELTWAY) IN VIRGINIA

Dates	Time	Direction	Description	Limits	Reason
5/1/26 (F)	9:30 p.m. – 8 a.m.	Northbound & Southbound	Single lane and shoulder closure	Georgetown Pike to George Washington Memorial Parkway	Bridge work
5/2/26 (Sa)	9:30 p.m. – 9 a.m.	Northbound & Southbound	Single lane closure	Georgetown Pike to George Washington Memorial Parkway	Bridge work
5/3/26 (Su)	10 p.m. – 5 a.m.	Northbound & Southbound	Double lane closure	Georgetown Pike to George Washington Memorial Parkway	Striping work
5/4/26 – 5/7/26 (M-Th)	10 a.m. – 3 p.m.	Northbound	Single lane closure	Dulles Toll Road to George Washington Memorial Parkway	Signage and inspection work
5/4/26 – 5/7/26 (M-Th)	9:30 a.m. – 2:30 p.m.	Southbound	Single lane closure	George Washington Memorial Parkway to Dulles Toll Road	Signage and inspection work
5/8/26 (F)	10 a.m. – 12 p.m.	Northbound	Mobile single lane closure	Dulles Toll Road to George Washington Memorial Parkway	Maintenance work
5/8/26 (F)	9:30 a.m. – 12 p.m.	Southbound	Mobile single lane closure	George Washington Memorial Parkway to Dulles Toll Road	Maintenance work
5/4/26 – 5/8/26 (M-F)	10 p.m. – 5 a.m.	Southbound	Ramp closure with detour	Ramp from southbound I-495 to George Washington Memorial Parkway (Exit 43)	Bridge work
5/4/26 – 5/8/26 (M-F)	9:30 p.m. – 5 a.m.	Northbound & Southbound	Single lane closure	Dulles Toll Road to George Washington Memorial Parkway	Roadway work

I-495 (CAPITAL BELTWAY) IN MARYLAND

Dates

Time

Direction

Description

Limits

Reason

5/4/26 – 5/8/26

(M-F)

9 a.m. – 3 p.m.

Northbound & Southbound

Single lane closure

American Legion Memorial Bridge to Cabin John Parkway

Overhead sign work

5/4/26 – 5/8/26

(M-F)

9 p.m. – 5 a.m.

Northbound

Single lane closure

American Legion Memorial Bridge to Cabin John Parkway

Overhead sign and barrier work

5/4/26 – 5/8/26

(M-F)

9 p.m. – 5 a.m.

Southbound

Double lane closure

Cabin John Parkway to American Legion Memorial Bridge

Overhead sign and barrier work

495 EXPRESS LANES

Dates	Time	Direction	Description	Limits	Reason
5/1/26 (F)	10 p.m. – 5 a.m.	Northbound	Ramp closure with detour	Ramp from northbound 495 Express Lanes to Route 7	Sign work
5/4/26 – 5/7/26 (M-Th)	9:30 a.m. – 3 p.m.	Northbound	Ramp narrowing	Ramp from northbound 495 Express Lanes to George Washington Memorial Parkway (Exit 43)	Inspection work
5/4/26 – 5/7/26 (M-Th)	9:30 a.m. – 3 p.m.	Northbound & Southbound	Single lane or mobile lane closure	Dulles Toll Road to George Washington Memorial Parkway	Inspection work
5/8/26 (F)	9:30 a.m. – 12 p.m.	Northbound & Southbound	Shoulder closure	Dulles Toll Road to George Washington Memorial Parkway	Inspection work
5/4/26 – 5/8/26 (M-F)	9 p.m. – 5 a.m.	Northbound & Southbound	Single lane closure	Dulles Toll Road to George Washington Memorial Parkway	Inspection work
5/4/26 – 5/8/26 (M-F)	10 p.m. – 5 a.m.	Northbound	Ramp closure with detour	Ramp from northbound 495 Express Lanes to George Washington Memorial Parkway (Exit 43)	Bridge surface work

GEORGE WASHINGTON MEMORIAL PARKWAY (GWMP) INTERCHANGE

Dates	Time	Direction	Description	Limits	Reason
5/2/26 (Sa)	9:30 p.m. – 5 a.m.	Southbound	Ramp closures with detours	Ramps from GWMP to southbound I-495 and southbound 495 Express Lanes	Median and signal work
5/4/26 – 5/8/26 (M-F)	9:30 a.m. – 3 p.m.	Southbound	Ramp narrowing	GWMP to southbound I-495	Inspection and repair work
5/5/26 & 5/6/26 (Tu & W)	9:30 a.m. – 2:30 p.m.	Southbound	Single lane or shoulder closure	GWMP to southbound I-495 collector road for Exits 43 and 44	Repair work
5/4/26 – 5/8/26 (M-F)	10 p.m. – 5 a.m.	Southbound	Ramp closures with detours	Ramps from GWMP to southbound I-495 and southbound 495 Express Lanes	Bridge deck work

BALLS HILL ROAD

Dates	Time	Direction	Description	Limits	Reason
5/4/26 – 5/7/26 (M-Th)	9:30 a.m. – 3 p.m.	Northbound & Southbound	Flagging operation	Benjamin Street to Arbor Lane	Handrail installation work
5/4/26 – 5/7/26 (M-Th)	9:30 a.m. – 3 p.m.	Northbound & Southbound	Single lane closure and lane shift	Heather Hill Lane to Georgetown Pike	Drainage installation work
5/8/26 (F)	9:30 a.m. – 2 p.m.	Northbound & Southbound	Flagging operation	Benjamin Street to Arbor Lane	Handrail installation work
5/1/26 (F)	9:30 a.m. – 2 p.m.	Northbound & Southbound	Single lane closure and lane shift	Heather Hill Lane to Georgetown Pike	Drainage installation work
5/6/26 – 5/8/26 (W-F)	9:30 p.m. – 5 a.m.	Northbound & Southbound	Lane shift	Heather Hill Lane to Georgetown Pike	Milling work

GEORGETOWN PIKE (GTP) INTERCHANGE

Dates	Time	Direction	Description	Limits	Reason
5/4/26 – 5/7/26 (M-Th)	9:30 a.m. – 3 p.m.	Eastbound & Westbound	Single lane closure	Linganore Drive to Balls Hill Road	Permanent signal, curb and median work
5/6/26 & 5/7/26 (W & Th)	9:30 a.m. – 3 p.m.	Southbound	Ramp narrowing	Ramp from GTP to southbound I-495	Drainage work
5/8/26 (F)	9:30 a.m. – 2 p.m.	Eastbound & Westbound	Single lane closure	Linganore Drive to Balls Hill Road	Permanent signal, curb and median work
5/8/26 (F)	9:30 a.m. – 12 p.m.	Southbound	Ramp narrowing	Ramp from GTP to southbound I-495	Drainage work
5/4/26 – 5/8/26 (M-F)	9:30 p.m. – 5 a.m.	Eastbound & Westbound	Single lane closure	Linganore Drive to Balls Hill Road	Milling and median work

DULLES TOLL ROAD (DTR) & DULLES AIRPORT ACCESS HIGHWAY (DAAH)

Dates	Time	Direction	Description	Limits	Reason
5/1/26 (F)	10 p.m. – 5 a.m.	Eastbound & Westbound DTR	Ramp closures with detours	Eastbound and westbound DTR to northbound 495 Express Lanes	Noise wall work
5/4/26 – 5/8/26 (M-F)	9 a.m. – 3:30 p.m.	Eastbound & Westbound DTR	Single lane or shoulder closure	Near the I-495 interchange	Inspection and sewer work and attenuator installation
5/4/26 – 5/8/26 (M-F)	8 a.m. – 3:30 p.m.	Eastbound & Westbound DAAH	Single lane closure	Near the I-495 interchange	Inspection work
5/4/26 – 5/7/26 (M-Th)	9:30 a.m. – 3 p.m.	Eastbound DTR	Ramp narrowing	Eastbound DTR to northbound 495 Express Lanes	Barrier work
5/8/26 (F)	9:30 a.m. – 12 p.m.	Eastbound DTR	Ramp narrowing	Eastbound DTR to northbound 495 Express Lanes	Barrier work
5/4/26 – 5/8/26 (M-F)	8 p.m. – 5 a.m.	Eastbound & Westbound DTR	Single lane closure	Near the I-495 interchange	Paving and inspection work
5/4/26 – 5/8/26 (M-F)	9 p.m. – 5 a.m.	Eastbound & Westbound DAAH	Single lane closure	Near the I-495 interchange	Inspection work
5/5/26 – 5/8/26 (Tu-F)	10 p.m. – 5 a.m.	Eastbound DTR	Ramp closure with detour	Eastbound DTR to northbound 495 Express Lanes	Noise wall work
5/6/26 – 5/8/26 (W-F)	10 p.m. – 5 a.m.	Westbound DTR	Ramp closure with detour	Westbound DTR to northbound I-495 and northbound 495 Express Lanes	Paving work

DOLLEY MADISON BOULEVARD (ROUTE 123)

Dates

Time

Direction

Description

Limits

Reason

5/4/26 – 5/8/26

(M-F)

10 p.m. – 5 a.m.

Northbound

Ramp closure with detour

Northbound Route 123 to westbound DTR

Paving work

Traffic Changes

The 495 Express Lanes Extension is Now Open!

The 2.5-mile northern extension of the 495 Express Lanes and new access ramps at the Dulles Toll Road and George Washington Memorial Parkway are now open and available for Beltway travelers in the McLean-Tysons area.

As traffic becomes acclimated to the new express lanes extension and ramps, drivers should use caution and stay alert.

Visit ExpressLanes.com/495Extension for more information.

495 NEXT project construction will continue in 2026 as crews work on finishing additional upgrades and project elements throughout the corridor. Lane closures during non-peak travel times will continue to be necessary through mid-2026 for crews to safely complete these important final project elements, which will benefit surrounding communities and local travelers.

Project Background

The I-495 Express Lanes Northern Extension (495 NEXT) project has successfully extended the existing 495 Express Lanes north by approximately 2.5 miles from the Dulles Corridor interchange to the George Washington Memorial Parkway interchange just before the American Legion Bridge. The new express lanes extension opened on November 23, 2025, ahead of schedule. The extension connects seamlessly with the existing 14-mile 495 Express Lanes and is part of Northern Virginia's 97-mile network of express lanes.

Other project benefits include four miles of new bicycle and pedestrian connections including a shared-use path parallel to I-495 from Lewinsville Road to near Live Oak Drive, replacement or rehabilitation of seven bridges with pedestrian accommodations, replacement of nine existing noise walls and construction of a new noise wall, environmental improvements introducing stormwater management facilities and funding of restoration at Scott's Run stream, and dedicated funding to support transit improvements in the corridor including new bus service over the American Legion Bridge. Final completion of all remaining project elements is expected by mid-2026.

495 NEXT is a public-private partnership project between the Commonwealth of Virginia and Transurban, the operator of the existing 495, 95, and 395 Express Lanes. The lead design-build contractor is Lane Construction, with Shirley Contracting Company building key interchange improvements.

Learn More About the Project

Check out 495next.vdot.virginia.gov for additional information.

Questions?

Email: 495NorthernExtension@vdot.virginia.gov

Call: Construction Inquiry Line, 703-592-6430

Virginia Department of Transportation, Michelle Holland, 703-586-0487

Transurban, Mike McGurk, 571-421-5364

Lane Construction, John Undeland, 703-785-3461