Police identified 64-year-old Clarence Bradley James as the motorcyclist who died Friday.
According to investigators, James was on the eastbound 290 flyover when he lost control of his motorcycle and fell 30 feet into a grassy area below.
Police are unsure what caused the accident. Anyone with information on the incident is asked to call (512) 974-8266.
The accident marked the 33rd traffic death of the year.