APM: 4 Location: Laguna Canyon Rd and SR 73, Orange Cty Reassurance shield after the 73 interchange. APM: 7 Location: Laguna Canyon Rd and Lake Forest Dr, Irvine A couple miles later we’ll enter Irvine. APM: 7 Location: Laguna Canyon Rd and SR 133, Irvine Keep right ahead for I-405. APM: 7 Location: SR 133 and San Diego Fwy, … Continue reading California State Route 133, SR 73 to I-405