AMP: 2 Location: Westcott Rd and S Frontage Rd, Killingly No signage as SR 607 begins. 607 is mileposted as an east-west route for some reason. As it begins, we pass under US 6. There is no direct access to 6 from 607 – that’s what upcoming SR 618 is for. US 6 west traffic … Continue reading Connecticut State Road 607, S Frontage Rd to US-6