495 Northern Extension HomeLane Closure and Traffic Impact Updates

Lane Closure and Traffic Impact Updates

Upcoming Highlights

  • I-495 North and South – Daytime single lane closures throughout the project corridor for road widening, cabling and maintenance work; nighttime multi-lane closures throughout the project corridor for paving and road widening work; ramp closure from northbound I-495 to GWMP (Exit 43) for hauling work
  • 495 Express Lanes – Daytime single lane closure between Dulles Toll Road and Old Dominion Drive for cabling work 
  • I-495 North and South in Maryland – Daytime single lane and shoulder closure on northbound and southbound between Cabin John Park to American Legion bridge for cabling work; nighttime double lane closure on southbound  between Cabin John Park to American Legion bridge for foundation work for overhead sign structure 
  • George Washington Memorial Parkway – Daytime single lane and shoulder closures on the ramp from GWMP to southbound I-495 and on the ramp from GWMP to northbound I-495 for survey and cabling work; nighttime ramp closure from GWMP to southbound I-495 for noise wall panel installation work 
  • Live Oak Drive – Daytime flagging operations extended from 7 a.m. to 7 p.m. and nighttime flagging operations for noise wall panel installation work 
  • Balls Hill Road – Daytime flagging operations for sidewalk and slope protection work 
  • Georgetown Pike – Daytime single lane closures on westbound over I-495 and on the ramp from southbound I-495 to Georgetown Pike (Exit 44) for cabling work  
  • Dulles Toll Road and Dulles Airport Access Highway – Daytime single lane closures on east- and westbound DTR near the I-495 interchange, on eastbound DTR at Exit 18A, and on eastbound DTR and DAAH to northbound I-495 Express Lanes for overhead sign, cabling, barrier, and concrete work; nighttime single lane closures on westbound DTR near the I-495 interchange, on eastbound DTR at Exit 18A, on east- and westbound DAAH to northbound I-495 Express Lanes, and eastbound DTR to northbound I-495 Express Lanes for barrier, stripping and lagging removal, and cabling work; nighttime multi-lane closures westbound DTR near the I-495 interchange for overhead sign work

495 NEXT Lane Closures & Traffic Changes

July 7-12, 2025

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Traffic Alerts

06/26/2025

Overnight Paving Scheduled Tonight on Southbound I-495 in McLean Area Expected to Extend Until Noon Friday 6/27

Single lane to remain closed on southbound Beltway from 5 a.m. through noon; Overnight Beltway traffic shift remains on schedule for Friday night

MCLEAN, VA - Overnight paving work on southbound I-495 (Capital Beltway Outer Loop) in the Tysons-McLean area, already scheduled for tonight, Thursday, June 26, is planned to continue through Friday (June 27) morning peak period and until approximately noon. Multiple lanes will be closed in both directions of this section of the Beltway beginning at 9:30 p.m. tonight until 5 a.m. Friday morning. A single right lane will remain closed tomorrow in the southbound direction only from about 5 a.m. until as late as noon. Drivers traveling in this area should expect possible delays and plan extra travel time for their morning commute tomorrow.

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06/24/2025

Southbound I-495/Capital Beltway Outer Loop Traffic Shift in Tysons-McLean Area Scheduled Friday Night, June 27

Multi-lane closures and stoppages on Beltway and ramp closures/detours will be in place to implement shift

MCLEAN, VA - On or about this Friday night, June 27, crews plan to implement the first of two traffic shifts of all four lanes on southbound I-495 (Beltway Outer Loop) within the I-495 Express Lanes Northern Extension (495 NEXT) project area. This first phase will shift southbound I-495 lanes from just north of George Washington Memorial Parkway (GWMP) to just south of Georgetown Pike onto newly constructed lanes on the outer section of the highway. Work will begin Friday night, with all southbound lanes in this section of the Beltway reopened in their new alignment by 10 a.m. Saturday morning, June 28. Saturday and Sunday nights will serve as backup dates in case of inclement weather or other work delays.

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06/20/2025

Nightly Triple-lane Closures on Capital Beltway in McLean and Ramp From Nb I-495 to George Washington Parkway Scheduled to Close Tonight, June 20, and June 22 Through July 2 as Needed

Motorists traveling on northbound I-495 to GW Parkway are asked to follow signed detour across American Legion Bridge to loop back into Virginia

FAIRFAX, VA - Drivers are advised that there will be nightly triple-lane closures on northbound and southbound I-495 (Capital Beltway) and a closure/detour of the ramp from northbound I-495 (Inner Loop) to George Washington Memorial Parkway (GWMP) (Exit 43) tonight, Friday, June 20 and Sunday night, June 22, through Wednesday night, July 2, as needed. These closures are for paving, curb, striping and road widening work as part of the I-495 Express Lanes Northern Extension (495 NEXT) project.

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Weekly Lane Closures

Past Weekly Lane Closures

Last updated: July 7, 2025

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