APM: N/A Location: El Cajon Blvd and I-8, La Mesa No reassurance shield as I-8 Business begins. Location: El Cajon Blvd and La Mesa Blvd, La Mesa I-8 Business is old US 80. Location: El Cajon Blvd and Euclid Ave, San Diego About a mile later, we’re advised to stay straight to get to I-8. Location: … Continue reading Interstate 8 Business, I-8 to SR 15