The accident occurred around 6:30 a.m., the Washington State Patrol reported.
The 19-year-old driver of a Subaru was arrested for investigation of vehicular assault, trooper Mark Francis said. He was suspected of driving under the influence of alcohol.
A passenger, 21, suffered a possible skull fracture. He was sitting in the middle of the back seat when he was ejected from the car, Francis said.
He was taken to Providence Regional Medical Center Everett.
The Subaru hit a guardrail before rolling over, Francis said.
The accident left one lane for traffic, causing long backups while troopers allowed alternating groups of cars past the rollover.
More Local News Headlines
Couple shared tragedy, loss of Oso, but found love Woman shot, man arrested in Everett 12:42 p.m. Legal costs of Everett Public Schools internal investigation near $55K New trial date for father of high school shooter Lawsuit against Highland Christian School, teacher settled Arlington City Council fills vacant seat Everett Library’s music swap hits all the right notes Arlington woman dies in Skagit motorcycle crash
Our new comment system is not supported in IE 7. Please upgrade your browser here.