APM: 13 Location: SR 4 and Solano Way, Concord Just after I-680, we’ll approach SR 242. APM: 14 Location: SR 4 and SR 242, Concord SR 242 is just a short freeway through Concord. APM: 14 Location: SR 4 and SR 242, Concord Exit for SR 242 south.  E to SR 160, W to I-80  S to I-680 … Continue reading California State Route 4, I-680 to SR 242