A woman who had more than three times the legal blood-alcohol limit when she crashed her SUV head-on into another vehicle while driving her three young daughters through Rancho Bernardo pleaded guilty to child abuse and drunk driving charges on Friday, Aug. 23.

Mayra Alejandra Troncoso, 30, had a blood-alcohol content of 0.29 percent when she drove on the wrong side of Camino del Norte on Nov. 12, 2018.

Her SUV crashed head-on into an upcoming 2011 Jeep Liberty, causing serious injury to her 9-month-old daughter, including a skull fracture and a brain bleed. Her 2-year-old daughter experienced facial injuries and her 8-year-old child broke a bone.

The 57-year-old driver of the other car had broken bones, authorities said.

Troncoso was detained in the Palomar Medical Center the day after the crash.

Prosecutors said that at the time of the crash, she was on probation and driving on a suspended license due to a 2017 North County DUI, in which she also crashed with at least one of her children in the vehicle.

On Sept. 23, Troncoso is slated to be sentenced.

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