495 NEXT LANE CLOSURES & TRAFFIC CHANGES

August 15 - August 23, 2025

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

495 NEXT Project Area Map

Happening This Weekend

Closures Happening This Weekend:


  • The ramp from northbound I-495 to George Washington Memorial Parkway (Exit 43) will be closed and detoured on Friday, August 15 and Sunday, August 17, from 10 p.m. to 5 a.m. for noise wall construction.


  • Mobile lane closures will be in place on northbound and southbound I-495 from the Dulles Toll Road to George Washington Memorial Parkway on Friday, August 15, from 10 p.m. to 8 a.m. and Sunday, August 17, from 9:30 p.m. to 5 a.m. for maintenance work.


  • The ramp from northbound George Washington Memorial Parkway to southbound I-495 will be closed and detoured on Sunday, August 17, from 10 p.m. to 5 a.m. for paving work.


  • The ramp from eastbound Dulles Toll Road/Dulles Airport Access Highway to northbound I-495 (Exit 18) will be closed and detoured on Sunday, August 17, from 10 p.m. to 5 a.m. for paving work.


  • A triple lane closure will be in place on eastbound Dulles Toll Road near the I-495 interchange on Friday, August 15, and Sunday, August 17, from 9 p.m. to 5 a.m. for survey and milling work.

Upcoming Highlights

  • I-495 North and South – Daytime single lane and shoulder closures; nighttime multi-lane and mobile closures


  • George Washington Memorial Parkway – Daytime shoulder closure and nighttime ramp detours at I-495 interchange


  • Live Oak Drive – Daytime flagging operations, including extended daytime hours, 7 a.m. to 7 p.m.


  • Balls Hill Road –Daytime flagging operations


  • Georgetown Pike – Nighttime single lane closure


  • Dulles Toll Road (DTR) and Dulles Airport Access Highway (DAAH) – Daytime single lane closures; nighttime single and multi-lane closures and ramp closures with detours

Lane Closures by Location

I-495 (CAPITAL BELTWAY) IN VIRGINIA

Dates

Time

Direction

Description

Limits

Reason

8/15/25 & 8/17/25

(F & Sun)

10 p.m. – 5 a.m.

Northbound

Ramp closure with detour

Ramp from northbound I-495 to GWMP (Exit 43)

Noise wall construction

8/15/25

(F)

10 p.m. – 8 a.m.

Northbound & Southbound

Mobile lane closures

Dulles Toll Road to George Washington Memorial Parkway

Maintenance work

8/17/25

(Sun)

9:30 p.m. – 5 a.m.

Northbound & Southbound

Mobile lane closures

Dulles Toll Road to George Washington Memorial Parkway

Maintenance work

8/18/25 – 8/21/25

(M-Th)

10 a.m. – 3 p.m.

Northbound

Single lane closure

Dulles Toll Road to George Washington Memorial Parkway

Road widening work

8/18/25 – 8/21/25

(M-Th)

9:30 a.m. – 2:30 p.m.

Southbound

Single lane closure

George Washington Memorial Parkway to Dulles Toll Road

Road widening and repair work

8/22/25 & 8/23/25

(F & Sat)



10 a.m. – 3 p.m.

Northbound

Shoulder closure

George Washington Memorial Parkway to American Legion Bridge

Cabling work

8/22/25 & 8/23/25

(F & Sat)

9:30 a.m. – 2:30 p.m.

Southbound

Shoulder closure

Old Dominion Drive to Dulles Toll Road

Cabling work

8/18/25 – 8/22/25

(M-F)

10 p.m. – 5 a.m.

Northbound

Ramp closure with detour

Ramp from northbound I-495 to GWMP (Exit 43)

Roadway construction

8/18/25 – 8/23/25

(M-Sat)

9:30 p.m. – 5 a.m.

Northbound

Triple lane closures with stoppages

Dulles Toll Road to George Washington Memorial Parkway


More information

Girder erection, cabling and paving work

8/18/25 – 8/23/25

(M-Sat)

9:30 p.m. – 5 a.m.

Southbound

Triple lane closures with stoppages

George Washington Memorial Parkway to Dulles Toll Road


More information

Girder erection, cabling and paving work

495 EXPRESS LANES

Dates

Time

Direction

Description

Limits

Reason

8/18/25 – 8/23/25

(M-Sat)

10 a.m. – 3 p.m.

Northbound

Single left lane closure

Dulles Toll Road to Old Dominion Drive

Cabling work

8/18/25 – 8/21/25

(M-Th)

9:30 a.m. – 2:30 p.m.

Southbound

Single left lane closure

Old Dominion Drive to Dulles Toll Road

Light pole work

I-495 (CAPITAL BELTWAY) IN MARYLAND

Dates

Time

Direction

Description

Limits

Reason

8/18/25 – 8/22/25

(M-F)

9 a.m. – 3 p.m.

Northbound & Southbound

Single lane and right shoulder closure

American Legion bridge to Cabin John Parkway

Cabling work

GEORGE WASHINGTON MEMORIAL PARKWAY (GWMP) INTERCHANGE

Dates

Time

Direction

Description

Limits

Reason

8/15/25 & 8/17/25

(F & Sun)

10 p.m. – 5 a.m.

Southbound

Ramp closure with detour across American Legion Bridge

Ramp from northbound GWMP to southbound I-495


More information

Noise wall work

8/18/25 – 8/21/25

(M-Th)

10 a.m. – 3 p.m.

Northbound

Right shoulder closure

GWMP on-ramp to northbound I-495

Cabling work

8/22/25

(F)

10 a.m. – 12 p.m.

Northbound

Right shoulder closure

GWMP on-ramp to northbound I-495

Cabling work

8/18/25 – 8/22/25

(M-F)

10 p.m. – 5 a.m.

Southbound

Ramp closure with detour across American Legion Bridge

Ramp from northbound GWMP to southbound I-495


More information

Paving work

8/20/25 – 8/23/25

(W-Sat)

10 p.m. – 5 a.m.

Southbound

Slip ramp closure with detour using Exit 44

GWMP slip ramp onto southbound I-495


More information

Girder erection work

LIVE OAK DRIVE

Dates

Time

Direction

Description

Limits

Reason

8/18/25 – 8/23/25

(M-Sat)

7 a.m. – 7 p.m.

Alternating

Single lane closure with flagging operation to alternate traffic

Langley Swim and Tennis Club to Green Oak Drive

Paving work

BALLS HILL ROAD

Dates

Time

Direction

Description

Limits

Reason

8/18/25 – 8/21/25

(M-Th)

9 a.m. – 3:30 p.m.

Alternating

Single lane closure with flagging operation to alternate traffic

Benjamin Street to Live Oak Drive

Sidewalk and slope protection work

8/22/25

(F)


9 a.m. – 2 p.m.

Alternating

Single lane closure with flagging operation to alternate traffic

Benjamin Street to Live Oak Drive

Sidewalk and slope protection work

GEORGETOWN PIKE (GTP) INTERCHANGE

Dates

Time

Direction

Description

Limits

Reason

8/18/25 – 8/23/25

(M-Sat)

10 p.m. – 5 a.m.

Eastbound

Single right lane closure

At the I-495 interchange

Girder erection work

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

Dates

Time

Direction

Description

Limits

Reason

8/17/25

(Sun)

10 p.m. – 5 a.m.

Eastbound DTR/DAAH

Ramp closure with detour

Ramp from eastbound DTR/DAAH to northbound I-495 (Exit 18)


More information

Survey and milling work

8/15/25 – 8/17/25

(F–Sun)

9 p.m. – 5 a.m.

Eastbound DTR

Triple lane closure

International Drive to I-495 interchange


More information

Cabling, milling, and overlay work

8/18/25 – 8/21/25

(M-Th)

9:30 a.m. – 3 p.m.

Westbound DTR

Single lane closure

Near the I-495 interchange

Cabling work

8/18/25 – 8/23/25

(M-Sat)

10 a.m. – 3:30 p.m.

Eastbound DTR

Single lane closure

Near the I-495 interchange

Cabling work

8/22/25

(F)

9:30 a.m. – 12 p.m.

Westbound DTR

Single right lane closure

Near the I-495 interchange

Cabling work

8/23/25

(Sat)

10 a.m. – 3:30 p.m.

Westbound DTR

Single right lane closure

Near the I-495 interchange

Cabling work

8/18/25 – 8/22/25

(M-F)

10 p.m. – 5 a.m.

Eastbound DTR/DAAH

Ramp closure with detour

Ramp from eastbound DTR/DAAH to northbound I-495 (Exit 18)


More information

Cabling, milling, and overlay work

8/18/25 – 8/22/25

(M-F)

9 p.m. – 5 a.m.

Eastbound DTR

Single lane closure

Eastbound DTR to northbound I-495 (Exit 18)

Milling and overhang work

8/18/25 – 8/22/25

(M-Sat)

9 p.m. – 5 a.m.

Eastbound DTR

Triple lane closure

International Drive to I-495 interchange


More information

Cabling, milling, and overlay work

Traffic Changes

Northbound and Southbound I-495 Traffic Shifted to New Beltway Alignment


Reminder: Traffic on all four general-purpose lanes of northbound I-495 (Capital Beltway Inner Loop) was shifted onto newly constructed outer lanes between just south of Old Dominion Drive and the George Washington Memorial Parkway. Traffic on all four general-purpose lanes of southbound I-495 (Capital Beltway Outer Loop) between just north of George Washington Memorial Parkway to just south of Georgetown Pike was shifted onto newly constructed outer lanes. These shifts enable crews to begin construction of the new express lanes in the center of the Beltway.


Following the first southbound I-495 traffic shift, drivers must now use two separate exits from southbound I-495 to access Exit 43 for GWMP and Exit 44 for Georgetown Pike. Instead of using the collector-distributor road that began just south of the American Legion Bridge, motorists now have two unique exit points directly from southbound I-495 for GWMP and Georgetown Pike.


Lanes on southbound I-495 between just south of Georgetown Pike to north of the Dulles Corridor Interchange near Old Dominion Drive are planned to shift in mid-July.


Click here for more information about these traffic shifts.


New Ramp Alignment for Traffic Exiting George Washington Memorial Parkway to Southbound I-495 and Georgetown Pike (Exit 44) and Southbound I-495 Traffic Exiting at Georgetown Pike (Exit 44)


Reminder: Traffic was shifted to a new ramp alignment located on the outer edge of the Beltway that runs parallel to southbound I-495 (Capital Beltway Outer Loop) between George Washington Memorial Parkway (GWMP) and Georgetown Pike. Drivers exiting northwest GWMP to southbound I-495 now stay in the right lane of the ramp and merge onto I-495 just south of the Georgetown Pike Bridge and motorists heading to Georgetown Pike (Exit 44) now remain in the left lanes of the ramp to reach the exit. Southbound I-495 Exit 44 collector road traffic now enters the new ramp alignment just after Exit 43 for GWMP and exit left to access Georgetown Pike (Exit 44).


Drivers should pay close attention to signage and lane markings, and use caution while getting acclimated to these new traffic patterns.


Click here to read more about the ramp shift.

New Exit Ramp for Northbound I-495 Exit to Westbound Dulles Toll Road


Reminder: Motorists traveling on northbound I-495 heading for westbound Dulles Toll Road must take a new, earlier exit. The new exit ramp is located about one-third of a mile ahead of the old, closed Exit 45. To facilitate this new traffic pattern, I-495 has been reduced from four to three lanes for approximately one-half mile near the Dulles Corridor interchange.

Westbound George Washington Memorial Parkway to Southbound I-495


Reminder: The ramp from westbound George Washington Memorial Parkway to southbound I-495 (Capital Beltway) was reduced from two lanes to one lane to make room for a construction vehicle haul route that will be separated from traffic by a physical barrier. This traffic change will be in effect throughout construction on the 495 NEXT project.

Project Background

The I-495 Express Lanes Northern Extension (495 NEXT) project will extend the existing 495 Express Lanes north by two-and-a-half miles from the Dulles Corridor interchange to the George Washington Memorial Parkway interchange in the vicinity of the American Legion Bridge. The project will provide new and improved connections at the Dulles Corridor and George Washington Memorial Parkway.


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. 

 

495 NEXT is a public-private partnership project between the Commonwealth of Virginia and Transurban, operator of the existing 495 Express Lanes. Lane Construction is the design-build contractor for the project. The new extended lanes are scheduled to open in 2025. 

Learn More About the Project


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


Sign up to receive project email updates.



Laptop showing 495 NEXT website

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

Facebook  Instagram  X  YouTube