Debris fell from an overpass and crashed through a woman's windshield while she was driving in Boston Tuesday.
Nancy Shapiro, a resident of the city's Jamaica Plain neighborhood, was driving to a symphony when the incident occurred.
She was in the underpass on Huntington Avenue near Massachusetts Avenue when a 2X4 crashed into her car.
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Authorities believe the truck in front of Shapiro somehow loosened the debris from the overpass.
Shapiro was not injured.