A South Jordan woman was listed in critical condition Saturday at LDS Hospital after suffering serious injuries when her car ran into a lamp post near the 90th South exit of southbound I-15 before dawn.

Michelle Vallee, 21, hit a lamp post at approximately 4:20 a.m. as she was trying to exit the freeway, said Sgt. Steve Vojtecky, Utah Highway Patrol. She was not wearing a seat belt, he said.A nursing supervisor at LDS Hospital said Vallee underwent abdominal surgery for more than two hours on Saturday afternoon.

Sgt. Vojtecky said she was first taken to Alta View Hospital and was later lifeflighted to LDS Hospital. Cause of the accident is under investigation.