AMP: 4 Location: Main St and Mechanic St, Southbridge No reassurance shield after the 169 split. AMP: 4 Location: Main St and Elm St, Southbridge A couple blocks later, in downtown Southbridge, we’ll approach Route 198. Turn left for MA 198 south, which is a short connector to CT 198. W to US-20, E to … Continue reading Massachusetts Route 131, MA 169 to MA 198