Both were taken to Whidbey General Hospital in Coupeville.
The driver, 48, is under investigation for vehicular assault, the Washington State Patrol reported. Troopers believe alcohol was a factor in the crash, according to an accident memo.
The Coupeville woman was driving a 2007 GMC pickup truck southbound on Zylstra Road at Hastie Lake Road when it crossed the centerline and struck a tree, troopers reported.
Her passenger -- a 9-year-old child whose gender was not reported -- is from Lake Stevens.
The crash remains under investigation.
More Local News Headlines
If you have any clues about I-5 arson, investigators want to know 3:58 p.m. Man on meth causes 5-car pileup in Everett, police say 1:18 p.m. Lots of loose ends as legislative overtime continues in Olympia 2:19 p.m. Barely in time, state budget signed; gas-tax increase passed Everett closer to enacting a permanent pot ordinance DUI charge possible after I-5 collision with parked patrol car ‘Deep gratitude’ for same-sex decision 3 people arrested in assault of teenager in Edmonds
Our new comment system is not supported in IE 7. Please upgrade your browser here.