APM: N/A Location: Farmington Rd and Mariposa Rd, Stockton Reassurance shield as 4 Business splits. Location: Farmington Rd and Ladd Tract Rd, Stockton As we head out of Stockton, we’ll cross over SR 99 without interchange. Location: Farmington Rd and Golden Gate Ave, San Joaquin Cty Shortly after that, SR 4 Business ends. Turn right for … Continue reading California State Route 4 Business, SR 99 Bus to SR 4