Police were called to investigate a fatality collision on the Alaskan Way Viaduct around 9:40 p.m. last night. Preliminary indications are that speed played a factor in the collision.
According to witnesses, a 22 year old man was traveling in the northbound lanes of the viaduct when he lost control of his motorcycle, struck a concrete barrier, and fell to the surface streets below.
Seattle Fire Department medics provided emergency care at the scene, but were unable to revive the man.
Traffic Collision Investigation detectives responded to the scene, processed the collision site and collected evidence.
This is an active and ongoing investigation. Information is subject to change as the investigation proceeds.