Last Driven November 2020 APM: 45 Location: SR 46 and SR 41, San Luis Obispo Cty Reassurance shield as 41 joins 46. APM: 46 Location: SR 41 and SR 46, San Luis Obispo Cty Shortly after 41 merges on, the divided highway ends. APM: 54 Location: SR 41 and SR 46, San Luis Obispo Cty … Continue reading California State Route 41, SR 46 to SR 46