AMP: 26 Location: Norwich Rd and Lathrop Rd, Plainfield No reassurance shield after the SR 647 turn. AMP: 23 Location: Norwich Rd and Butts Bridge Rd, Plainfield A couple miles later, we’ll approach SR 668, which follows the Butts Bridge to CT 169. AMP: 23 Location: Norwich Rd and Butts Bridge Rd, Plainfield Turn right … Continue reading Connecticut Route 12, SR 647 to SR 668