APM: N/A Location: Husted Rd and Frontage Rd, Colusa Cty As the business loop begins, turn left for I-5 Business north. APM: N/A Location: Frontage Rd and Husted Rd, Colusa Cty No reassurance shield after the turn. APM: N/A Location: 7th St and F St, Williams As we enter Williams we’re greeted by a Historic US 99W shield. … Continue reading Interstate 5 Business, I-5 to SR 20 Bus