Woman critically injured in Bethel Island dirt bike wreck

2:44 AM

BETHEL ISLAND — A woman was critically injured after crashing her off-road motorcycle into a tree Tuesday afternoon.

Mary Williams, 54, of Bethel Island, hit the tree and then was thrown from the motorcycle onto jagged rocks that line a levee, according to the California Highway Patrol. Alcohol is believed to have been a factor in the crash, Officer Tom Maguire said.

The collision occurred at 4:40 p.m. along Riverview Drive, a raised levee access road. Witnesses told police that Williams was speeding and driving in laps in the area. She was not wearing a helmet, Maguire said.

As she made a left turn onto Riverview from another levee road, she accelerated, took the turn too wide and ran head-on into a tree. She suffered major injuries.

She was taken by helicopter to John Muir Medical Center in Walnut Creek.