APM: 15 Location: Campo Rd and Jamacha Rd, Spring Valley, San Diego Cty No reassurance shield after the turn. APM: 19 Location: Campo Rd and Lyons Valley Rd, Jamul, San Diego Cty A few miles later, we’re nineteen miles from SR 188. APM: 24 Location: Campo Rd and Otay Lakes Rd, San Diego Cty A couple miles later, … Continue reading California State Route 94, SR 54 to SR 188