By William Tauro
A chaotic scene in Somerville unfolded as four motorcycles were traveling on the McGrath O’Brian Highway upper deck on Monday night when the last motorcycle believed to be traveling at a high rate of speed in line lost control and hit the side shoulder on the highway’s guardrail.
The driver was ejected over and off the upper deck 200 feet away to the ground on the lower deck below in one direction and the bike landed 200 feet away from him in another direction.
The driver was seriously injured but responsive after the crash.
He was transported to the Massachusetts General Hospital where he remains in critical condition.
The cause of the accident still remains under investigation.
