The driver, 39, was taken to Hackensack University Medical Center after her Volvo crashed on the eastbound overpass at Teaneck Road shortly before 10:30 p.m., Bergen County Sheriff's Public Information Officer Keisha McLean said.
Teaneck police, firefighters and the Volunteer Ambulance Squad responded along with the sheriff's Bureau of Criminal Identification, which collected evidence for an investigation by the department's detectives.
A PSE&G crew repaired the pole, McLean said.
County authorities inspected the overpass and found it "in working condition," she said.
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