APM: 39 Location: Main St and SR 36, Red Bluff Reassurance shield as 36 joins I-5 Business. APM: 40 Location: Main St and Adobe Rd, Red Bluff Adobe Rd connects to I-5 but is not the business loop. APM: 40 Location: Main St and Adobe Rd, Red Bluff Historic US 99 reassurance shield after Adobe Rd. APM: 40 Location: … Continue reading California State Route 36, I-5 Bus to I-5 Bus