AMP: 0 Location: N Frontage Rd and Westcott Rd, Killingly No signage as SR 618 begins. 618 runs parallel to US 6, but not on an old alignment – that is the south frontage road. AMP: 0 Location: N Frontage Rd and Providence Pk, Killingly As we approach US 6 we’ll come to a cul-de-sac. … Continue reading Connecticut State Road 618, SR 607 to US-6