APM: 17 Location: SR 20 and SR 49, Nevada City Reassurance shield after the 49 split. APM: 18 Location: SR 20 and Nevada St Ext, Nevada City Reassurance shield as we head out of Nevada City. APM: 28 Location: SR 20 and Valencia Rd, Nevada Cty Reassurance shield ten miles later. APM: 31 Location: SR 20 and Washington Rd, … Continue reading California State Route 20, SR 49 to I-80