 Route 28 has been closed to northbound traffic. It's still being diverted onto Route 50. 50 is in bad shape right now between South Riding and Chantilly. VDOT has retimed the traffic signals to give as much green time as possible to diverted drivers, but it's only going to help so much. Centerville Road is saturated. Heavier traffic on Fairfax County Parkway and even on 606 on the backside of Dulles Airport near the National Weather Service.