Aimee Michael also was sentenced Thursday to 14 years probation. She was convicted Monday of vehicular homicide, hit-and-run and tampering with evidence by hiring a mechanic to fix her BMW after she triggered the chain-reaction wreck.
The jury also found Michael guilty of causing a serious injury by vehicle and misdemeanor traffic violations.
Michael apologized to the families involved before her sentencing.
Her mother, 52-year-old former school teacher Sheila Michael, was sentenced to eight years in prison for helping with the cover-up.
Defense attorneys say they'll appeal.