 Only the left lane will be open northbound. That's until August, and it includes Monday through Friday during both the morning and evening rush hours. Roadwork has the left lane closed in Tyson's Corner on the Beltway Interloop between 123 and the Dulles Toll Road. Overnight construction has the right lane closed in Dumfries on southbound 95 at Dumfries Road, and the left lane is closed in Springfield on 95 northbound.