"It happened so fast," she said. "My best friend is sitting in a hospital right now, broken."
Henrion, 19, said she and Shelly Martin were walking down Pioneer Way in Poulsbo at about 7:30 p.m. when they heard a vehicle accelerating behind them.
"It just got really loud and fast and we didn't even have time to look back," she said. "I didn't think that we were going to get hit."
Henrion said the driver didn't slow down or even try to brake before slamming into her and Martin.
The driver took off, leaving the two injured women in a ditch along the side of the road.
"He just kept going. My hair was all in front of my face and I looked up and all I saw was the tail lights because he was that far away," she said.
Henrion pulled herself up and called 911 while Martin, who took the brunt of the impact, lay injured and unable to move her legs.
"She was crying to me 'get me out of here!'" Henrion said.
Martin was airlifted to Harborview Medical Center in Seattle with severe injuries.
On Sunday night Martin's mother, Carissa Martin, was at the hospital and said her daughter can't understand why the driver never stopped.
"She's said it many times, 'why would someone do this to me? Why would they hit me and leave me in a ditch and drive away?'"
Henrion was not seriously hurt but has bruises up and down the side of her body.
All she wants now is for the driver to be found.
"I just can't believe they didn't stop," she said.
Investigators do not have a good description of the vehicle but think it's a pickup truck.
If you have any information about a pickup with new or unexplained front-end damage, call police.