California State Route 54

California State Route 54, just CA 54 is a highway in the U.S. state of California, which runs in an east - west direction.

The Highway begins on Interstate 5 in San Diego at the mouth of the Sweetwater River and ends in El Cajon near Interstate 8 from the cross with the California State Route 125 follows the State Route the Jamacha Boulevard and then to I- 8 Campo Road. The section between the cross with the CA 125 and I- 8 is to be expanded by 2030.

The road also South Bay Freeway is called Between Interstate 805 and California State Route 94.