A woman walking behind a snow plow truck Wednesday was hit as the vehicle was backing up, the Harford County Sheriff’s Office said.Officials were called around 9 a.m. to North Bend Elementary School in the 100 block of North Bend Road in Jarrettsville. Sheriff's Office officials said a woman was walking behind a snow plow truck while it was backing up and was struck.The victim was taken to Johns Hopkins Bayview Medical Center as a precaution.It is not known if the woman was affiliated with the school.​