The crash was reported just before 5 p.m. on I-5, north of the Highway 526 exit, according to Washington State Patrol trooper Keith Leary.
The man's 2002 Ford F250 reportedly was speeding and crossing multiple lanes when it side-swiped a passenger car. No one in the car was seriously injured.
The impact sent the truck across and off the highway, where it rolled over.
The man was unconscious when crews arrived, Leary said. He was expected to be taken to a local hospital. He was in stable condition.
The cause of the crash remained under investigation.
More Local News Headlines
Program gives Lake Stevens High sophomores exclusive welcome Lovick now supports delaying new courthouse construction Golden age of aviation shines at Vintage Aircraft Weekend First in-patient hospice to open in county With school starting, Clothes for Kids opens for business Front Porch: Roaming Artistsí annual show Evergreen State Fair judging results No evidence of warning in school shootings, police say
Our new comment system is not supported in IE 7. Please upgrade your browser here.