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Portage resident Jessica D. Halverson, 22, died Monday after her vehicle rolled over and crashed on Old Highway U in the town of Caledonia, according to the Columbia County Sheriff’s Office.
Halverson was driving a 2001 Chevy Blazer from the right front passenger seat as part of her employment as a rural route delivery person with the U.S. Postal Service. She was the only person in the car and was pronounced deceased at the scene of the crash.
A 911 call was received at 3:37 p.m. Monday about the crash about one-third of a mile south of Potter Road.
Halverson was ejected and not breathing at the time of the call. Witnesses to the crash performed CPR while emergency responders were en route.
According to a preliminary investigation, the vehicle was traveling north on Old County Highway U Road, left the road to the right and continued for 400 feet until coming back onto the roadway. The vehicle then left the roadway on the left side, went down a steep ditch and into a cornfield and overturned, ejecting her from the vehicle.
The vehicle came to a rest on its wheels about 30 yards off the roadway in a plowed farm field.
Alcohol and speed are not considered factors in the crash.
Halverson was not wearing a seat belt at the time of the crash, the Sheriff’s Office said.
The crash remains under investigation by the Sheriff’s Office and the Columbia County Medical Examiner’s Office and the U.S. Postal Service.