APM: 19 Location: SR 99 and Atwater-Merced Expy, Merced Cty Reassurance shield as the Atwater business loop merges on. APM: 17 Location: SR 99 and 16th St, Merced Cty A couple miles later, we’ll approach 16th Street, which carries 99 Business through Merced.  S to SR 59/SR 140, N to SR 99 Bus  S to SR 59 … Continue reading California State Route 99, SR 99 Bus to SR 99 Bus