APM: S0 Location: San Bernardino Fwy and Santa Ana Fwy, Los Angeles No reassurance shield as the San Bernardino Fwy begins. This short connector between 101 and I-5/I-10 is designated as State Route 10S. APM: S0 Location: San Bernardino Fwy and State St, Los Angeles Exit ahead for State Street. 10 Spur east doesn’t actually … Continue reading California State Route 10 Spur, US-101 to I-5/I-10