VDOT News - Northern Virginia



Michelle Holland 703-586-0487


Dec. 4, 2020

Custis Trail I-66 Underpass at Bon Air Park in Arlington Reopened
Trail roundabout construction nearing completion

FAIRFAX –The Custis Trail has reopened under I-66 near Arlington’s Bon Air Park as overhead work on I-66 progresses for VDOT’s Transform 66 Inside the Beltway Eastbound Widening Project.  With the underpass re-opened, the new trail roundabout is fully open and the detour is no longer needed.

The trail roundabout will enhance safety for cyclists, pedestrians, and other trail users by improving sightlines where the Custis Trail passes under I-66 and intersects with other trails. The roundabout was designed in coordination with Arlington County to improve the trail while minimizing the need to cut down nearby trees in Bon Air Park. Lighting is planned to be installed in early 2021.

View from the east, headed toward the W&OD Trail

View from the south, looking toward the I-66 underpass

View from the west, headed toward the I-66 underpass from the W&OD Trail 

The I-66 Eastbound Widening Project will add a travel lane along four miles of eastbound I-66 and install approximately 12,000 linear feet of new and replacement noise barriers. The project also includes constructing a new direct access ramp from eastbound I-66 to the West Falls Church Metrorail Station at the Leesburg Pike (Route 7) Interchange. Another aspect of the project is a new W&OD Trail bridge over Lee Highway (Route 29), which is anticipated to be completed in late January 2021. Learn more about the project at inside.transform66.org.

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Page last modified: Jan. 31, 2023