The approximate location of the accident.

press release from the Crystal Lake Police Department:

Crystal Lake Traffic Crash – McHenry Ave at Barlina Road

On Monday, August 27, 2012 at approximately 4:36 PM, emergency crews from the Crystal Lake Fire Rescue and Police Departments responded to a report of a traffic crash on McHenry Avenue between Monterey Drive and Dartmoor Drive involving a vehicle roll-over.

Upon arrival Officers determined the crash to involve a single vehicle, a 2003 Jeep Liberty, owned and operated by Heather Burris (22) of Algonquin, Illinois.

Paramedics evaluated Burris’ injuries, which were determined to not be life-threatening, but required immediate medical attention.

Fire Rescue Command determined the appropriate method of transport would be by air.

A REACT helicopter from Rockford was summoned, and transported Burris to Lutheran General Hospital in Park Ridge for further evaluation and treatment.

Initial investigation revealed Burris had been southbound on McHenry Avenue, when her vehicle left the roadway on the west side parkway striking a mailbox and support post.

The vehicle then continued completely off of the roadway, and rolled on to its roof. Burris was able to exit the vehicle on her own.

Manual traffic control was provided as emergency crews tended to Burris, removed the vehicle and debris, and secured an appropriate landing zone.

Traffic was diverted from the area for over an hour.

This incident remains under investigation by the Crystal Lake Police Department.