A 26-year-old Allenton man suffered severe injuries when his motorcycle went off a Washington County Highway early yesterday morning. Sheriff’s officials say Adam Ralph was on Highway 175 in the Town of Addison when he failed to negotiate a curve and went into a ditch. His bike hit a driveway culvert and he was ejected from it. Ralph was not wearing a helmet he was taken to Aurora Medical Center in Hartford and later flown to Froedtert Hospital in Milwaukee. Authorities say speed was a factor in the crash