Police returned Friday to the intersection on Bangerter Highway where earlier this week an accident claimed the life of a 4-year-old girl.

Investigators were taking measurements and collecting other data at 10400 South and Bangerter Highway to determine what charges should be filed in the case.

About 4:30 p.m. Wednesday, police say a car driven by an 18-year-old man T-boned the driver's side of a vehicle driven by 31-year-old Lori Floor. Several witnesses told police the teen driver ran a red light.

Floor's 4-year-old daughter and 10-year-old son were in the back of the car. Her daughter, Ashtin Kroon, was later pronounced dead at a local hospital. The son, Colton Livingston, sustained only minor injuries.

South Jordan police Lt. Rob Hansen said Floor, who police said was not wearing a seat belt, sustained severe injuries but at last word was in stable condition.

"She has a rough go ahead," he said.

The impact of the initial collision sent the two vehicles into two other vehicles. The 18-year-old driver in the car the witnesses said ran the red light, and his 18-year-old passenger, were not seriously injured.

No charges had been filed as of Friday, but Hansen said the investigation was continuing.

Among the bits of information detectives were trying to piece together Friday was how fast the teen driver's vehicle was traveling. The speed limit on that part of the highway is 60 mph.

They were also trying to determine if the 4-year-old child was properly restrained. Hansen said there was a car seat in Floor's vehicle.

E-mail: preavy@desnews.com