APM: 15 Location: Colusa Ave and SR 99, Yuba City Reassurance shield after the SR 99 junction. APM: 16 Location: Colusa Ave and Orange St, Yuba City Stay straight to stay on 20 east. APM: YUB/0 Location: 10th St and Colusa Ave, Marysville Shortly after that we’ll cross the Feather River into Marysville and the road changes to … Continue reading California State Route 20, SR 99 to SR 70