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
Objection delays release of records in school shootings Victims’ families want full account of shootings, lawyer says 5:28 p.m. ‘Unprecedented’ wind storm: 23K in county still without power 6:39 p.m. Cost overruns, location, parking needs put courthouse on hold Clarence Robertson volunteered for 56 years as a reserve deputy 5-story building in Mill Creek would include affordable housing Island County undersheriff resigning to care for his children Front Porch: Light a candle for a loved one
Our new comment system is not supported in IE 7. Please upgrade your browser here.