5:15 p.m.: All lanes have reopened to traffic.
4:20 p.m.: Traffic is now getting through in the right lane.
The following photos are courtesy of KIRO 7.
4:04 p.m.: The Washington State Patrol reports the collision involves an airport shuttle bus, a rolled over pick-up truck and a couple of other vehicles. So far no serious injuries are reported. Tow trucks are en route.
3:56 p.m.: Some traffic is now getting by on the right shoulder.
3:50 p.m.: Some traffic is getting by using the carpool ramps near the Lynnwood Transit Center.
3:45 p.m.: A collision is blocking all lanes of northbound at 44th Avenue West in Lynnwood. Several emergency responders are on-scene, including Washington State Patrol, fire and aid units, and the WSDOT Incident Response Teams. Traffic is currently backed up to Shoreline.