Traffic on the Alaskan Way Viaduct and in downtown Seattle was clogged Thursday afternoon after a roll-over collision in the Battery Street Tunnel.
The roll-over happened about 2:40 p.m. No injuries were reported.
The tunnel was closed through 3:30 p.m. and traffic was being diverted onto Seneca Street. Backups extended onto First and Second avenues.
Click on the video above to watch raw chopper video of the traffic backups.