The Wisconsin State Patrol is investigating a fatal one-vehicle rollover crash in Calumet County. The crash happened shortly before 2:30pm Wednesday at the intersection of US Highway 10 and County Road D in the Town of Woodville. A preliminary investigation indicates that a car, driven by a 70-year-old Brillion man, was traveling westbound on US Highway 10 when it drifted off the roadway, struck a culvert and rolled over at Country Road D. The driver and lone occupant died at a hospital.