Trail seemed OK-enough this morning out west in the Sterling/Herndon/Reston area, but I am using 700x35mm studded tires and was quite glad to have them. Bridges/overpasses (Herndon Pkwy x2, Center St, FFx Pkwy, Town Center Pkwy) were "OK" but took it easy. A coworker rode in from Ashburn had some skittishness (25mm slicks), especially on anything painted. Saw one rider go down when he exited trail on a side street in Herndon and turned a bit tighter than he should have. Stopped, he said he was OK. The "S Curve of Death" on Custis trail in Arlington must've been really nasty this morning. Glad I don't go that far.
We'll probably get a few days like this over the winter. Ride safe everyone!