The incident occurred in Greenwich around 8:45 a.m., Monday, Feb. 5 on Railroad Avenue in the area of Field Point Road.
According to Capt. John Slusarz, of the Greenwich Police, the woman was hit when a 35-year-old Stamford resident driving a Range Rover, was turning left from Field Point Road when he struck the woman crossing the street.
The driver remained on the scene and is cooperating with investigators, Slusarz said.
The woman, of Flushing, New York, suffered a serious life-threatening injury and was taken to an area hospital for treatment, police said.
Her identity is being withheld pending notification of family.
The road was closed for approximately two hours while members of the Greenwich Police Department's Crash Reconstruction Team conducted an investigation.
Anybody who may have witnessed this incident should contact Sgt. Smith of the Police Department's Traffic Section at 203-622-8015.
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