Major Night-time Traffic Delays — Washington Beltway / I-495
at Tyson's Corner / Rt. 50 / I-66 / Dulles Toll Road
Due to major construction, late evening / night-time lane closures cause major delays on the Washington Beltway / I-495 in the areas noted above. Advice:
- Exit ramp from southbound I-495 to west bound VA-123 scheduled for closure Saturday evening.

- Avoid this area in the evening / at night.
- Refer to a map in advance to plan your route.
- Some options are listed below.