 Westbound Route 7 at the Loudoun County Parkway, a single lane gets by the wreck. Keep an eye out in McLean. It's Lewinsville Road near Meadow Green Lane. A single lane is getting you by the downed tree. And northbound 123 at Zion Drive, that's a report of a wreck. The Crohn's and Colitis Foundation has been at the forefront of inflammatory bowel disease research and care for over 50 years. Learn more about research, education, and support at Crohn'sColitisFoundation.org. I'm Rita Kessler, WTOP Traffic.