An Anacortes woman was arrested before being airlifted to Harborview Medical Center in Seattle after a one-car accident on Highway 20 south of Coupeville.

At approximately 8:30 a.m., a 46-year-old Lisa Rogers was driving a 2001 Lincoln Continental southward on Highway 20 past the turnoff for the solid waste transfer station when she veered off the road, overcorrected back over the road, hit a berm and rolled, said J. Greene with the Washington State Patrol.

The car rolled through a chain link fence before coming to a rest on its side facing the northbound direction.

Rogers was ejected from the car, said Trooper Keith Leary, spokesman for the Washington State Patrol.

One passerby noticed the aftermath of the accident and stopped to help.

“The only thing I noticed was a cloud of dust in the highway,” Langley resident Brandon Rose said as he was driving south on Highway 20.

Rose turned around, pulled over on the highway and noticed the car on its side with the engine running. When he got closer, he noticed a woman outside the vehicle trying to get up.

He told Rogers to wait for help and called 911.

Emergency personnel had to cut through the fence in order to get to the driver. She was transported to Whidbey General Hospital before being airlifted to Harborview Medical Center. While she was at the hospital, Rogers was placed under arrest for suspicion of driving under the influence.

Leary said that callers reported prior to the accident that a possibly impaired driver was headed southbound on Highway 20.

Trooper Greene said Friday morning that the accident is still being investigated.

One lane of Highway 20 was closed while emergency personnel tended to the driver. By 11 a.m., both lanes of Highway 20 was closed while troopers continued their investigation. Traffic was diverted at Terry and Parker roads.