Christian M. Galvan, 23, was driving a Chevrolet Tahoe at high speed east on Laughlin Road around 6 p.m. Tuesday, CHP Officer Jon Sloat said.
Galvan lost control of the SUV and struck a guardrail on the south side of the road, Sloat said.
The Tahoe overturned and landed on its wheels, partially hanging on the guardrail and partially in a five-feet deep ditch on the shoulder of the road, Sloat said.
Galvan and her two daughters, ages 4 and 6, were ejected from the Tahoe. Her 2-year-old son was in a child safety seat in the rear of the SUV and was not ejected, Sloat said.
Galvan, her son and 6-year-old daughter suffered moderate injuries and were taken to Santa Rosa Memorial Hospital. The 4-year-old girl went to Oakland Children's Hospital, Sloat said. None of the injuries appeared to be life threatening, Sloat said.
Galvan was driving with an expired license, and she was arrested for DUI and child endangerment, Sloat said.
Galvan's family members said she and her husband were arguing about her drinking before the crash and that Galvan's husband left the house to avoid a further confrontation shortly before Galvan left with the children, Sloat said.
