495 NEXT LANE CLOSURES & TRAFFIC CHANGES

September 12 - September 20, 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

Happening This Weekend

Multi-Lane Closures and Ramp Closures/Detours Planned this Weekend Affecting Northbound I-495 in Tysons-McLean

Closures begin Friday night, Sept. 12 through Sunday morning, Sept. 14;

Drivers urged to stay away to avoid potential backups and delays

Beginning on or about Friday night, Sept. 12, at 9 p.m. and continuing until approximately 9 a.m., Sunday, Sept. 14, lane and ramp closures will be in place on northbound I-495 (Capital Beltway Inner Loop) between Leesburg Pike (Route 7) and the George Washington Memorial Parkway (GWMP).

Triple lane closures will be in place and the ramp from eastbound Dulles Toll Road to northbound I-495 will be closed and detoured on Friday night. A single lane closure is planned to be in place all day on Saturday. Triple lane closures will be in place and all ramps going to and from northbound I-495 between Route 123 and GWMP will be closed and detoured. Ramp closures will be staggered and may be reopened earlier throughout the night as work is completed.

Motorists should expect potential backups and delays, and should use alternate routes. If travel through the area is necessary, drivers should plan extra travel time.

Click here for more information.

Additional Closure Happening this Weekend:

A single lane closure will be in place on the 495 Express Lanes between Dulles Toll Road and Old Dominion Drive on Friday, September 12, from 9 p.m. to 8 a.m., and Sunday, September 14, from 8:30 p.m. to 5 a.m. for paving work.

Upcoming Highlights

I-495 North and South – Daytime single lane and shoulder closures; nighttime single and multi-lane closures and nighttime ramp closures with detours

George Washington Memorial Parkway – Daytime shoulder closure and nighttime ramp closure with detour at the I-495 interchange

Live Oak Drive and Balls Hill Road – Daytime flagging operations

Georgetown Pike – Nighttime ramp closures with detours at the I-495 interchange

Old Dominion Drive – Nighttime flagging operations

Dulles Toll Road (DTR) and Dulles Airport Access Highway (DAAH) –Daytime single lane closures; nighttime ramp closures with detours at the I-495 interchange

Route 123/Dolley Madison Boulevard – Nighttime ramp closure with detour at the I-495 interchange

Lane Closures by Location

I-495 (CAPITAL BELTWAY) IN VIRGINIA

Dates	Time	Direction	Description	Limits	Reason
9/12/25 (F)	9 p.m. – 8 a.m.	Northbound	Multi-lane closure	Leesburg Pike (Route 7) to George Washington Memorial Parkway	Traffic shift
9/13/25 (Sat)	8 a.m. – 9 p.m.	Northbound	Single right lane closure	Lewinsville Road to George Washington Memorial Parkway More information	Traffic shift
9/13/25 (Sat)	9 p.m. – 9 a.m.	Northbound	Multi-lane closure	Leesburg Pike (Route 7) to George Washington Memorial Parkway	Traffic shift
9/13/25 (Sat)	9 p.m. – 9 a.m.	Northbound	Ramp closure with detour	Ramp from northbound I-495 to GWMP (Exit 43) More information	Traffic shift
9/13/25 (Sat)	9 p.m. – 9 a.m.	Northbound	Ramp closure with detour	Ramp from northbound I-495 to Georgetown Pike (Exit 44) More information	Traffic shift
9/14/25 (Sun)	8:30 p.m. – 5 a.m.	Northbound & Southbound	Multi-lane closure	Dulles Toll Road to George Washington Memorial Parkway	Paving work
9/15/25 – 9/18/25 (M-Th)	9 a.m. – 3 p.m.	Northbound	Single lane closure	Dulles Toll Road to George Washington Memorial Parkway	Road widening work
9/15/25 – 9/18/25 (M-Th)	8:30 a.m. – 2:30 p.m.	Southbound	Single lane closure	George Washington Memorial Parkway to Dulles Toll Road	Road widening work
9/19/25 (F)	9:30 a.m. – 12:00 p.m.	Northbound & Southbound	Single lane closure	Dulles Toll Road to George Washington Memorial Parkway	Road widening work
9/20/25 (Sat)	7 a.m. – 2 p.m.	Northbound & Southbound	Single lane closure	Dulles Toll Road to George Washington Memorial Parkway	Road widening work
9/15/25 – 9/18/25 (M-Th)	8:30 p.m. – 5 a.m.	Northbound & Southbound	Multi-lane closures	Dulles Toll Road to George Washington Memorial Parkway	Paving work
9/15/25 – 9/18/25 (M-Th)	9 p.m. – 5 a.m.	Northbound	Ramp closure with detour	Ramp from northbound I-495 to GWMP (Exit 43)	Roadway construction
9/19/25 (F)	9 p.m. – 8 a.m.	Northbound & Southbound	Multi-lane closures	Dulles Toll Road to George Washington Memorial Parkway	Paving work
9/19/25 (F)	9 p.m. – 8 a.m.	Northbound	Ramp closure with detour	Ramp from northbound I-495 to GWMP (Exit 43)	Roadway construction
9/19/25 (F)	9 p.m. – 8 a.m.	Northbound	Ramp closure with detour	Ramp from northbound I-495 to Georgetown Pike (Exit 44)	Roadway constriction
9/20/25 (Sat)	9 p.m. – 9 a.m.	Northbound & Southbound	Multi-lane closures	Dulles Toll Road to George Washington Memorial Parkway	Paving work
9/20/25 (Sat)	9 p.m. – 9 a.m.	Northbound	Ramp closure with detour	Ramp from northbound I-495 to GWMP (Exit 43)	Roadway construction
9/20/25 (Sat)	9 p.m. – 9 a.m.	Northbound	Ramp closure with detour	Ramp from northbound I-495 to Georgetown Pike (Exit 44)	Roadway construction

495 EXPRESS LANES

Dates	Time	Direction	Description	Limits	Reason
9/12/25 (F)	9 p.m. – 8 a.m.	Northbound	Single right lane closure	Dulles Toll Road to Old Dominion Drive	Paving work
9/14/25 (Sun)	8:30 p.m. – 5 a.m.	Northbound	Single right lane closure	Dulles Toll Road to Old Dominion Drive	Paving work
9/15/25 – 9/18/25 (M-Th)	8:30 a.m. – 2:30 p.m.	Southbound	Single left lane closure	Old Dominion Drive to Dulles Toll Road	Light pole work
9/15/25 – 9/18/25 (M-Th)	8:30 p.m. – 5 a.m.	Northbound	Single right lane closure	Dulles Toll Road to Old Dominion Drive	Paving work
9/19/25 (F)	9 p.m. – 8 a.m.	Northbound	Single right lane closure	Dulles Toll Road to Old Dominion Drive	Paving work

I-495 (CAPITAL BELTWAY) IN MARYLAND

Dates

Time

Direction

Description

Limits

Reason

9/15/25 – 9/19/25

(M-F)

9 a.m. – 3 p.m.

Northbound & Southbound

Single left lane closure

American Legion Memorial Bridge to Cabin John Parkway

Cabling work

9/15/25 – 9/18/25

(M-Th)

9 p.m. – 5 a.m.

Northbound

Single left lane closure

American Legion Memorial Bridge to Cabin John Parkway

Overhead sign work

9/15/25 – 9/18/25

(M-Th)

9 p.m. – 5 a.m.

Southbound

Multi-lane closures

Cabin John Parkway to American Legion Memorial Bridge

Overhead sign work

GEORGE WASHINGTON MEMORIAL PARKWAY (GWMP) INTERCHANGE

Dates

Time

Direction

Description

Limits

Reason

9/15/25 – 9/19/25

(M-F)

10 a.m. – 3 p.m.

Northbound

Right shoulder closure

GWMP on-ramp to northbound I-495

Cabling work

LIVE OAK DRIVE

Dates

Time

Direction

Description

Limits

Reason

9/15/25 – 9/19/25

(M-F)

9 a.m. – 3:30 p.m.

Alternating

Single lane closure with flagging operation to alternate traffic

Langley Swim and Tennis Club to Green Oak Drive

Roadway construction

BALLS HILL ROAD

Dates

Time

Direction

Description

Limits

Reason

9/15/25 – 9/19/25

(M-F)

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

GEORGETOWN PIKE (GTP) INTERCHANGE

Dates	Time	Direction	Description	Limits	Reason
9/13/25 (Sat)	9 p.m. – 9 a.m.	Eastbound/ Westbound	Ramp closure with detour	Ramp from GTP to northbound I-495 More information	Traffic shift
9/15/25 – 9/18/25 (M-Th)	9 p.m. – 5 a.m.	Eastbound/ Westbound	Ramp closure with detour	Ramp from GTP to northbound I-495	Paving work
9/19/25 (F)	9 p.m. – 8 a.m.	Eastbound/ Westbound	Ramp closure with detour	Ramp from GTP to northbound I-495	Paving work
9/20/25 (Sat)	9 p.m. – 9 a.m.	Eastbound/ Westbound	Ramp closure with detour	Ramp from GTP to northbound I-495	Paving work

OLD DOMINION DRIVE

Dates

Time

Direction

Description

Limits

Reason

9/12/25 & 9/14/25 – 9/19/25

(F & Sun-F)

10 p.m. – 5 a.m.

Alternating

Single lane closure with flagging operation to alternate traffic

Dulany Drive to Dominion Court

Sidewalk and slope protection work and paving work

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

Dates	Time	Direction	Description	Limits	Reason
9/12/25 & 9/13/25 (F & Sat)	9 p.m. – 8 a.m.	Eastbound DTR/DAAH	Ramp closure with detour	Ramp from eastbound DTR/DAAH to northbound I-495 (Exit 18B) More information	Traffic shift
9/13/25 (Sat)	9 p.m. – 9 a.m.	Westbound DTR	Ramp closure with detour	Ramp from westbound DTR to northbound I-495 (Exit 18) More information	Traffic shift
9/15/25 – 9/19/25 (M-F)	10 a.m. – 3:30 p.m.	Eastbound DTR	Single lane closure	Near the I-495 interchange	Cabling work
9/15/25 – 9/18/25 (M-Th)	10 a.m. – 3 p.m.	Eastbound DTR	Ramp narrowing	Ramp from eastbound DTR to northbound I-495	Barrier work
9/15/25 – 9/18/25 (M-Th)	9:30 a.m. – 3 p.m.	Westbound DTR	Single lane closure	Near the I-495 interchange	Cabling work
9/15/25 – 9/18/25 (M-Th)	9 p.m. – 5 a.m.	Eastbound DTR/DAAH	Ramp closure with detour	Ramp from eastbound DTR/DAAH to northbound I-495 (Exit 18B)	Milling and paving work
9/15/25 – 9/18/25 (M-Th)	9 p.m. – 5 a.m.	Westbound DTR	Ramp closure with detour	Ramp from westbound DTR to northbound I-495 (Exit 18)	Paving work
9/19/25 (F)	9 p.m. – 8 a.m.	Eastbound DTR/DAAH	Ramp closure with detour	Ramp from eastbound DTR/DAAH to northbound I-495 (Exit 18B)	Milling and paving work
9/19/25 (F)	9 p.m. – 8 a.m.	Westbound DTR	Ramp closure with detour	Ramp from westbound DTR to northbound I-495 (Exit 18)	Paving work
9/20/25 (Sat)	9 p.m. – 9 a.m.	Eastbound DTR/DAAH	Ramp closure with detour	Ramp from eastbound DTR/DAAH to northbound I-495 (Exit 18B)	Milling and paving work
9/20/25 (Sat)	9 p.m. – 9 a.m.	Westbound DTR	Ramp closure with detour	Ramp from westbound DTR to northbound I-495 (Exit 18	Paving work

ROUTE 123/DOLLEY MADISON BOULEVARD

Date	Time	Direction	Description	Limits	Reason
9/13/25 (Sat)	9 p.m. – 9 a.m.	Southbound	Ramp closure with detour	Ramp from southbound Rt. 123 to northbound I-495 More information	Traffic shift
9/15/25 – 9/18/25 (M-Th)	9 p.m. – 5 a.m.	Southbound	Ramp closure with detour	Ramp from southbound Rt. 123 to northbound I-495	Roadway construction
9/19/25 (F)	9 p.m. – 8 a.m.	Southbound	Ramp closure with detour	Ramp from southbound Rt. 123 to northbound I-495	Roadway construction
9/20/25 (Sat)	9 p.m. – 9 a.m.	Southbound	Ramp closure with detour	Ramp from southbound Rt. 123 to northbound I-495	Roadway construction

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.