APM: SB/90 Location: US 101 and Broadway, Santa Maria As we enter Santa Maria and Santa Barbara county, we’re 1.75 miles from the SR 166 split. APM: SB/89 Location: US 101 and Donovan Rd, Santa Maria One mile to the 166 split. APM: 89 Location: US 101 and Donovan Rd, Santa Maria In case you missed the last … Continue reading California State Route 166, US-101 Bus/SR 135 to US-101