A 2005 Toyota 4Runner rolled about 60 feet off Interstate 82 on Sunday when the driver lost control.
Fausta J. Manley, 39, and Madison L. Manley, 14, were taken to PMH Medical Center in Prosser for treatment following the 5:42 p.m. crash.
According to the Washington State Patrol, Fausta Manley was driving the Toyota west on the highway when she lost control three miles east of Prosser.
A state patrol report blamed the Toyota’s speed as being too fast for conditions.
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Both occupants, who are from Yakima, were wearing seat belts in the crash.