A motorcyclist hit a trash can and was thrown from his bike on State Route 94 in La Mesa Sunday afternoon.
He was traveling westbound near Massachusetts Avenue around 1:15 p.m., the California Highway Patrol said.
The motorcyclist was launched onto the right hand shoulder.
Moments before the incident, a caller reported the trash can to local law enforcement, CHP said.
A passer-by stopped to move his motorcycle off the road, according to CHP.
The man broke his leg during the crash, CHP said.
No other information was available.