The crash was reported just after 10:30 a.m. near San Francisquito Canyon Road and Copper Hill Drive.
Video from AIR7 showed the motorcycle on the side of the road.
It's unclear what led to the crash. According to an update from the sheriff's department, the deputy suffered only minor injuries.
The incident remains under investigation.
This is a developing story. This article will continue to be updated as more information becomes available.