The man was listed Friday in serious condition in the intensive care unit at Harborview Medical Center in Seattle.
The crash was reported at 9:40 p.m. along Highway 525, about 10 miles south of Coupeville, according to a Washington State Patrol memo.
The mans 2002 Ford F-350 was northbound when it crossed the center line and struck a guardrail. The truck then rolled over and hit a tree, according to the memo.
Troopers are investigating the cause of the crash.
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