Correction: Mitch Overacre is the nephew of the mayor of Kimberly. The Times-News regrets the error.

The Kimberly mayor's son, Mitch Overacre, 19, was "banged up," his passenger, a younger teenage girl suffered apparently worse injuries, after a three-vehicle pile-up Wednesday crushed his Yamaha motorcycle on Addison Avenue East and pinned his passenger to the road.

Overacre's passenger, who police did not identify, lay motionless but conscious for a short period in the center turn lane of Addison Avenue East near the Stinker Station with her right hip pinned under the weight of the motorcycle and a pickup that had struck the vehicle from behind, witnesses said.

Police received the first call for help at 5:27 p.m.

Overacre leaped to his feet. He began pounding on the hood of a hazel Toyota Tundra TRD that sat on top of his passenger while he yelled "back up" over and over again, witnesses said.

Despite Overacre's insistence, Harry Knox, 56, the Tundra's driver, was unable to reverse the pickup because a Chevy Astro van driven by Patricia Cruz, 60, of Kimberly, that had rear-ended his pickup blocked the way, witnesses said.

With several people helping, including former police officer Harry Fowble, Overacre was able to lift the front-left tire of the Tundra high enough for the girl to get out from underneath it, witnesses said.

The female passenger suffered an injury on her right hip, Fowble said.

"She could talk," Fowble said. "She was just numb."

Overacre left the scene in the ambulance with his passenger, who was "hurting everywhere," said Twin Falls Police Officer Gregg Lockwood.

The St. Luke's Magic Valley Medical Center patient care coordinator said no one by the last name of Overacre had checked into the emergency room Wednesday afternoon.

The drivers of the Tundra and Astro declined medical treatment.

Twin Falls police shut down traffic to the Addison Avenue East, east of Eastland Drive for about an hour.

Witnesses who observed the crash said Overacre, who was headed eastbound in the center turn lane, yielded for a stopped car ahead of him.

Knox managed to stop without hitting the motorcycle. But Cruz, driving an older black and maroon Chevy Astro van behind the Tundra rear-ended the pickup, causing the pickup to crash into the motorcycle and roll over the motorcycle with its left tire.

Cassidy Friedman may be reached at 208-735-3241 or cfriedman@magicvalley.com.