APM: 9 Location: SR 125 and Jamacha Blvd, La Presa Exit for Jamacha Blvd, which also marks the end of the SR 54 concurrency, one exit after it began. Several miles up Jamacha Blvd, SR 54 resumes as SR 95.  N to SR 94, S to SR 11/SR 905  W to I-805  W to SR 125 … Continue reading California State Route 125, SR 54 to SR 54