Iced over roads are already creating numerous vehicle crashes in Kingsport, including the rollover of an SUV. Kingsport authorities say sheets of ice are being reported on John B. Dennis Highway and Stone Drive. Heavy icing is being reported on West Carter valley Road. At the entrance ramp from Fort Henry Drive to John B. Dennis, a vehicle had exited the roadway, rolled over, and trapped the driver. It also knocked down a power pole. The driver was extricated and transported to an area hospital with non life-threatening injuries. Mark Nagi with the Tennessee Department of Transportation advises motorists to stay off the roadways if possible. Motorists are urged to watch out for areas of black ice, especially over bridges and overpasses. If you must be out and about, Motorists are being urged to use caution and allow extra travel time.