As part of the 495 Express Lanes Northern Extension (495 NEXT) project, crews will install five steel bridge girders spanning 295 feet in length over northbound I-495 (Capital Beltway Inner Loop) at the Dulles Corridor Interchange for a new 495 Express Lanes ramp. This work is scheduled to occur over the weekend of January 24-27, 2025, and will require major traffic impacts on northbound I-495 near Tysons and at the Dulles Corridor Interchange.
During the weekend-long operation, traffic on northbound I-495 will be reduced from six lanes (four general purpose and two express) to two lanes and shifted to the 495 Express Lanes for about a one-mile stretch near Tysons. Traffic shifts and lane reductions will be in place for approximately three miles beginning at the Route 7 interchange until just past Lewinsville Road.
Additionally, the ramp from eastbound Dulles Toll Road/Dulles Airport Access Highway to northbound I-495 and westbound Dulles Toll Road under I-495 will be closed and detoured. Work and traffic impacts will begin at 9 p.m., Friday, January 24, with all lanes and ramps reopened by 5 a.m., Monday, January 27. Work is weather dependent and will be rescheduled if necessary.
Travelers are urged to stay away from northbound I-495 near Tysons the entire weekend of January 24-27. If travel is necessary, please choose an alternate route or plan additional time and expect delays. As always, drivers are urged to slow down, use caution and follow signed directions and detours. Enhanced police presence will be in place throughout the construction area.
To plan ahead and stay informed, travelers should:
The Big Beam Weekend is the largest girder operation on the 495 NEXT project, and requires extended work hours and a traffic-free work zone for crews to safely and efficiently complete the work.
Last updated: November 22, 2024
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