APM: 4 Location: Warren Fwy and MacArthur Fwy, Oakland Reassurance shield as SR 13 begins. APM: 5 Location: Warren Fwy and Redwood Rd, Oakland Reassurance shield after the Redwood Rd interchange. APM: 6 Location: Warren Fwy and Joaquin Miller Rd, Oakland Reassurance shield after Joaquin Miller. APM: 7 Location: Warren Fwy and Mountain Blvd, Oakland Reassurance shield after Mountain … Continue reading California State Route 13, I-580 to SR 24