California 13 and Interstate 580 in Oakland

Freeway view of California 13 exit from Interstate 580 in Oakland

California 13 is a freeway through Oakland, named after Supreme Court Chief Justice Earl Warren, who was once a district attorney in Alameda County. This view of the sign shows the sign in context on northbound Interstate 580; also available is a close-up view of the sign, showing its older-style button reflectors.