APM: N/A Location: Jamacha Rd and Main St, El Cajon SR 54 begins here as a locally maintained state highway. El Cajon evidently doesn’t know quite how to sign it. APM: N/A Location: Jamacha Rd and Washington Ave, El Cajon A more traditionally proportioned Business Route (not Business Loop!) 54 shield. APM: 14 Location: Jamacha Rd and Grove … Continue reading California State Route 54, I-8 Bus to SR 94