495 NEXT LANE CLOSURES & TRAFFIC CHANGES

April 17-April 24, 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, 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

I-495 North and South – Daytime mobile lane closure, shoulder closure, ramp narrowing, and day- and nighttime single lane and shoulder closures; nighttime single, 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 narrows 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.

Lane Closures by Location

I-495 (CAPITAL BELTWAY) IN VIRGINIA

Dates	Time	Direction	Description	Limits	Reason
4/17/26 (F)	9:30 p.m. – 5 a.m.	Northbound	Double lane closure	Dulles Toll Road to George Washington Memorial Parkway	Bridge work
4/20/26 & 4/21/26 (M & Tu)	10 a.m. – 3 p.m.	Northbound	Ramp narrowing	Ramp from northbound I-495 to GWMP (Exit 43)	Inspection work
4/20/26 & 4/22/26 & 4/23/26 (M, W & Th)	10 a.m. – 3 p.m.	Northbound	Single lane closure	Dulles Toll Road to George Washington Memorial Parkway	Signage, inspection and bridge work
4/20/26 & 4/22/26 & 4/23/26 (M, W & Th)	9:30 a.m. – 2:30 p.m.	Southbound	Single lane closure	George Washington Memorial Parkway to Dulles Toll Road	Signage and maintenance work
4/20/26 – 4/23/26 (M-Th)	9:30 a.m. – 2:30 p.m.	Southbound	Ramp narrowing	Ramp from southbound I-495 to GWMP (Exit 43)	Bridge work
4/24/26 (F)	10 a.m. – 12 p.m.	Northbound	Mobile single lane closure	Dulles Toll Road to George Washington Memorial Parkway	Maintenance work
4/24/26 (F)	9:30 a.m. – 12 p.m.	Southbound	Mobile single lane closure	George Washington Memorial Parkway to Dulles Toll Road	Maintenance work
4/20/26 & 4/21/26 (M & Tue)	9:30 p.m. – 5 a.m.	Northbound	Single lane closure	Dulles Toll Road to George Washington Memorial Parkway	Bridge and maintenance work
4/20/26 & 4/21/26 (M & Tue)	9:30 p.m. – 5 a.m.	Southbound	Single lane closure	George Washington Memorial Parkway to Dulles Toll Road	Overhead sign and maintenance work
4/22/26 – 4/24/26 (W-F)	9:30 p.m. – 5 a.m.	Northbound & Southbound	Double lane closure	Dulles Toll Road to George Washington Memorial Parkway	Bridge work

I-495 (CAPITAL BELTWAY) IN MARYLAND

Dates	Time	Direction	Description	Limits	Reason
4/20/26 & 4/22/26 –4/24/26 (M & W-F)	9 a.m. – 3 p.m.	Northbound & Southbound	Single lane closure	American Legion Memorial Bridge to Cabin John Parkway	Overhead sign work
4/20/26 – 4/22/26 (M-W)	9 p.m. – 5 a.m.	Northbound	Single lane closure	American Legion Memorial Bridge to Cabin John Parkway	Overhead sign and barrier work
4/20/26 – 4/23/26 (M-Th)	9 p.m. – 5 a.m.	Southbound	Double lane closure	Cabin John Parkway to American Legion Memorial Bridge	Overhead sign and barrier work
4/23/26 (Th)	9 p.m. – 5 a.m.	Northbound	Triple lane closure	American Legion Memorial Bridge to Cabin John Parkway	Overhead sign and barrier work

495 EXPRESS LANES

Dates	Time	Direction	Description	Limits	Reason
4/20/26 & 4/22/26 & 4/23/26 (M, W & Th)	9:30 a.m. – 3 p.m.	Northbound & Southbound	Single lane closure	Dulles Toll Road to George Washington Memorial Parkway	Inspection work
4/20/26 & 4/22/26 & 4/23/26 (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
4/24/26 (F)	9:30 a.m. – 12 p.m.	Northbound & Southbound	Shoulder closure	Dulles Toll Road to George Washington Memorial Parkway	Inspection work
4/20/26 – 4/24/26 (M-F)	9 p.m. – 5 a.m.	Northbound & Southbound	Single lane or shoulder closure	Dulles Toll Road to George Washington Memorial Parkway	Inspection work

GEORGE WASHINGTON MEMORIAL PARKWAY (GWMP) INTERCHANGE

Dates	Time	Direction	Description	Limits	Reason
4/20/26 – 4/23/26 (M-Th)	9:30 a.m. – 3 p.m.	Southbound	Ramp narrowing	GWMP to southbound I-495	Inspection work
4/20/26 – 4/22/26 (M-W)	9:30 a.m. – 2:30 p.m.	Southbound	Single lane or shoulder closure	GWMP to southbound I-495 on collector road for Exits 43 and 44	Inspection work
4/24/26 (F)	9:30 a.m. – 12 p.m.	Southbound	Ramp narrowing	GWMP to southbound I-495	Inspection work
4/23/26 & 4/24/26 (Th & F)	10 p.m. – 5 a.m.	Northbound	Ramp closure with detour	Ramps from GWMP to northbound I-495 and northbound 495 Express Lanes	Bridge overlay work

BALLS HILL ROAD

Dates	Time	Direction	Description	Limits	Reason
4/20/26 & 4/22/26 & 4/23/26 (M, W & Th)	9:30 a.m. – 3 p.m.	Northbound & Southbound	Flagging operation	Benjamin Street to Arbor Lane	Handrail installation work
4/20/26 & 4/22/26 & 4/23/26 (M, W & 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
4/24/26 (F)	9:30 a.m. – 2 p.m.	Northbound & Southbound	Flagging operation	Benjamin Street to Arbor Lane	Handrail installation work
4/24/26 (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

GEORGETOWN PIKE (GTP) INTERCHANGE

Dates	Time	Direction	Description	Limits	Reason
4/17/26 (F)	9:30 p.m. – 5 a.m.	Eastbound & Westbound	Single lane closure	Linganore Drive to Balls Hill Road	Permanent signal and median work
4/20/26 & 4/22/26 & 4/23/26 (M, W & 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
4/20/26 – 4/23/26 (M-Th)	9:30 a.m. – 3 p.m.	Southbound	Ramp narrowing	Ramp from GTP to southbound I-495	Drainage work
4/24/26 (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
4/24/26 (F)	9:30 a.m. – 12 p.m.	Southbound	Ramp narrowing	Ramp from GTP to southbound I-495	Drainage work
4/20/26 – 4/24/26 (M-F)	9:30 p.m. – 5 a.m.	Eastbound & Westbound	Single lane closure	Linganore Drive to Balls Hill Road	Permanent signal, milling and median work

LEWINSVILLE ROAD

Dates

Time

Direction

Description

Limits

Reason

4/20/26 & 4/22/26 & 4/23/26

(M, W & Th)

9:30 a.m. – 3 p.m.

Eastbound & Westbound

Flagging operation

Snow Meadow Lane to Scotts Run Road

Pole installation

4/24/26

(F)

9:30 a.m. – 2 p.m.

Eastbound & Westbound

Flagging operation

Snow Meadow Lane to Scotts Run Road

Pole installation

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

Dates	Time	Direction	Description	Limits	Reason
4/20/26 & 4/22/26 –4/24/26 (M, W-F)	9 a.m. – 3:30 p.m.	Eastbound & Westbound DTR	Single lane closure	Near the I-495 interchange	Inspection and sewer work and attenuator installation
4/20/26 – 4/24/26 (M-F)	8 a.m. – 3:30 p.m.	Eastbound & Westbound DAAH	Single lane or mobile shoulder closure	Near the I-495 interchange	Inspection work
4/20/26 – 4/23/26 (M-Th)	8 p.m. – 5 a.m.	Westbound DTR	Single lane closure	Near the I-495 interchange	Milling work
4/20/26 – 4/24/26 (M-F)	9 p.m. – 5 a.m.	Eastbound & Westbound DAAH	Single lane closure	Near the I-495 interchange	Inspection work
4/20/26 – 4/23/26 (M-Th)	10 p.m. – 5 a.m.	Westbound DTR	Ramp closure with detour	Westbound DTR to northbound I-495 express lane	Milling work
4/20/26 – 4/23/26 (M-Th)	10 p.m. – 5 a.m.	Westbound DTR	Ramp closure with detour	Westbound DTR to northbound I-495	Milling 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