Lanes are closed after a tractor-trailer hit a tree and overturned near the exit ramp to the CIA. All northbound traffic is being diverted to Route 123, and drivers are advised to take an alternative route. Stay with Dr. Gridlock for the latest.

Local Commuter Alert Thu., Feb. 23, 2017 4:55 p.m.     Northbound George Washington Parkway lanes closed after crash Lanes are closed after a tractor-trailer hit a tree and overturned near the exit ramp to the CIA. All northbound traffic is being diverted to Route 123, and drivers are advised to take an alternative route. Stay with Dr. Gridlock for the latest. Read more » Advertisement You are signed up for the following breaking news alerts: Technology | World | Health/Science/Environment | Sports | National | Entertainment | Politics | Economy/Business. You are signed up for the following local (DC/MD/VA) news alerts: Local Politics | Local Commuter | Local Other News | Local Business | Local Crime/Safety | Local Weather. You received this email because you signed up for breaking news alerts. For additional free email alerts and newsletters, or to unsubscribe, click here. We respect your privacy. If you believe that this email has been sent to you in error, or you no longer wish to receive email from The Washington Post, click here. Contact us for help. ©2017 The Washington Post, 1301 K St NW, Washington DC 20071