The crash happened when the 41-year-old man from New York State lost control of his car and struck the wire guardrails near Exit 7, WLAD said.
Related story: Car Rolls Over, Goes Down Embankment On I-84 In Danbury
Then the car went 200 feet down an embankment and came to rest in a riverbed, WLAD said. He was cited for failure to drive in the established lane.
The crash caused backups for a few hours at the end of the morning rush-hour, the state Department of Transportation said.
The crash scene was cleared by a wrecker.
Click here for the story at the WLAD website.
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