APM: 43 Location: Palmdale Blvd and Antelope Valley Fwy, Palmdale Reassurance shield after the 14 split. APM: 44 Location: Palmdale Blvd and 5th St, Palmdale Reassurance shield a few blocks later. APM: 46 Location: Palmdale Blvd and 30th St, Palmdale SR 138 is a safety corridor. APM: 48 Location: Palmdale Blvd and 47th St, Palmdale Shortly thereafter, SR 138 … Continue reading California State Route 138, SR 14 to SR 18