About the Project

Custis Trail Roundabout

In December 2020, the Custis Trail reopened under I-66 near Arlington’s Bon Air Park. A new trail roundabout, built as part of the project, enhances 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. New lighting was also installed in early 2021.

Aerial view of the roundabout.

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.