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The I-495 Express Lanes Northern Extension (495 NEXT) project is a public-private partnership between the Commonwealth of  Virginia and Transurban that involves extending the 495 Express Lanes north by two-and-a-half miles from the Dulles Corridor to the George Washington Memorial Parkway interchanges near the American Legion Bridge.  This important initiative will provide congestion relief, add travel choices, improve travel reliability and enhance safety on a vital corridor in Northern Virginia and the larger region.  495 NEXT will provide new and improved express lanes connections at the Dulles Corridor and George Washington Memorial Parkway interchanges.

Other 495 NEXT 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 along Live Oak Drive in the vicinity of the George Washington Memorial Parkway interchange, environmental improvements introducing stormwater management facilities and funding restoration of the stream at Scotts Run, and dedicated funding to support transit improvements in the corridor including new bus service over the American Legion Bridge.

  • Tree clearing and noise wall update
  • Building bridges: Pile driving this fall for new bridges
  • Safety first: Slow down and use caution when traveling through the 495 NEXT work zone
  • 495 NEXT team available to meet with communities
  • Applications invited for Transurban’s 495 NEXT community grants


The 495 NEXT Interactive Map provides information about the project’s design and what is being constructed. Design elements and features are color coded according to the map legend. 495 NEXT is a design-build project, and details shown on this interactive map are subject to change and may be updated as the project's design is finalized.

Explore the most recent project plans with the interactive map. (Updated November 2023). View enlarged map
How to Use the 495 NEXT Interactive Map
  • Use your mouse to navigate the map.
  • Click with your left mouse button to move anywhere on the map and hold, then drag the map across the screen, to pan your view of the map.
  • Rotate your mouse wheel to change the scale of the map (zoom in and out).
  • As you zoom in, more design details and project features will be visible.
  • If you're looking for more information about or near a specific location, type the address into the search box in the upper left-hand corner and hit enter or the search button to zoom to that location.
About the Icons
  • Home icon for map legendHome Icon - Click on this button to reset the map view to the default zoom level.
  • Geolocate icon for map legendGeolocate Icon - Click to have the map zoom to your current location.
  • Plus minus icons for map legendPlus/Minus Buttons - Click to zoom in and out of the project area.

  • Layer list icon for map legendLayer List Icon - Click to turn different design elements and features on and off in the map.
  • Legend icon for map legendLegend Icon - Click to view what each of the data lines on the map represent.
  • Basemap icon for map legendBasemap Icon - Click to view the basemap gallery where you can change the background underneath the data lines.
  • Info icon for map legendInformation Icon - Click to display information about the 495 Next project and instructions on how to use the interactive map.

Construction kicked off on VDOT's 495 NEXT project in March 2022, along with final project design. The extended 495 Express Lanes are expected to open in late 2025, with the project completed in 2026.

project timeline
Final Noise Abatement Report

This addendum includes the Final Noise Abatement Design Report Technical Memorandum for Noise Barrier C. Click here to view the addendum. 

This addendum includes the Final Noise Abatement Design Report Technical Memorandum for Noise Barriers 13D and 13E. Click here to view the addendum.

This report describes the details of the noise impact assessment and final noise abatement design study performed for the 495 Express Lanes Northern Extension (495 NEXT) Project in Fairfax County, Virginia. To view the report and find additional information, click here.


The Virginia Department of Rail and Public Transportation (DRPT) and the Maryland Department of Transportation Maryland Transit Administration (MDOT MTA) conducted the I-495 American Legion Bridge (ALB) Transit/Transportation Demand Management (TDM) study to identify a range of current and future multimodal solutions that can be implemented to reduce congestion, improve trip reliability and regional connections, and enhance existing and planned multimodal mobility and connectivity for travel across the American Legion Bridge, focusing on the segment of I-495 between I-95 (Maryland) and I-395/95 (Virginia). To view the study report and find additional information, click here.

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Learn more about VDOT's 495 Express Lanes Northern Extension Program
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