Turnage received multiple fractures and was transported by LifeFlight to Memorial Hermann Hospital.
The accident is under investigation.
Turnage has been with Harris County Constable Precinct 6 since 1994 in the department's motorcycle division.
Reserve deputy in critical condition after wreck
HOUSTON
It happened on the Tomball Parkway near Boudreaux Road at around 4:30am. Investigators say Reserve Deputy Randall Turnage, 50, was on his motorcycle traveling southbound when he crashed into a vehicle that had just rolled over.
