A woman arrested for DWI with children in her vehicle had a blood alcohol content of triple the state’s legal limit, police allege in court documents.

Police said they were dispatched to the 1300 block of the northbound Interstate 35 frontage road around 9:15 p.m. Oct. 23 regarding a crash. The victim stated she had been struck from behind near 11th Street and that the driver of the Nissan continued traveling north. The victim said the driver of the Nissan rear-ended a second vehicle, a pickup, near 13th Street and continued driving.

The affidavit states dispatch received a call shortly after the first two crashes to report a single-vehicle crash in the northbound lanes of I-35. The man who called dispatch reported seeing a Nissan getting on the freeway at a high rate of speed from the 15th Street on-ramp, crossing the northbound lanes and striking the guardrail. He added that he and others helped the driver, later identified as Alvina Porter, 32, from the vehicle. A 5-year-old and 4-year-old were also in the vehicle, police noted.

According to the affidavit, Porter was “sleepy and lethargic” while talking to medics and was unable to keep her eyes open while police performed a field sobriety test at the hospital. She admitted to having about two drinks and that she’d had albuterol (an inhaler). The affidavit states a preliminary breath test performed around 9:45 p.m. gave a result of .258, more than triple the legal limit of .08.

Police have charged Porter with felony DWI with child passenger. Online records at the Travis County Jail also show two charges involving the crashes. Porter is being held on combined $34,500 bond. The affidavit lists additional bond conditions of a SCRAM device and random urinalysis tests.