The crash, which closed the roadway for several hours, took place around 8 p.m., Sunday, March 6, in the area of 300 East Putnam Ave., in Greenwich.
When the crash occurred, the Jeep was traveling west when it left the roadway and struck a tree and utility pole on the north shoulder before rolling over onto the roof, said Capt. Mark Zuccerella, of the Greenwich Police.
The driver, who was alone in the vehicle, suffered life-threatening injuries and was transported to the hospital for treatment, Zuccerella said.
The Greenwich Police Crash Reconstruction Team is investigating the collision.
Anyone who may have witnessed the crash or if they have information is being requested to call 203-622-8014 or 8015.
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