Wasilla resident Kirby D. Anderson, 24, died from her injuries at about 1 p.m. Thursday after undergoing emergency surgery and spending five days at Providence Alaska Medical Center, troopers said.
Anderson was fatally injured in an accident at Bogard and Stoney Hollow roads at about 12:35 a.m. Sunday.
Troopers say Wasilla resident Brandon L. Dickey, 26, was driving his 2007 Polaris Ranger XL south on Bogard when he took a hard left turn, throwing Anderson out the right side of the vehicle.
Neither person was wearing a seat belt, and Dickey had been drinking, troopers said.
Immediately after the accident, Dickey was arrested on charges of first-degree assault and driving under the influence and booked at the Mat-Su pretrial facility with bail set at $100,000, troopers said.
Troopers say the investigation is continuing. It was not immediately clear if Dickey would be facing more severe charges.
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