AMP: 9 Location: Killingworth Rd and Durham Rd, Guilford Reassurance shield after the CT 77 junction. AMP: 11 Location: Old Toll Rd and Twin Bridge Rd, Madison A couple miles later, we’ll enter Madison. This sign is an error – this is the Madison town line. Downtown Madison is down by I-95 and US 1. … Continue reading Connecticut Route 80, CT 77 to CT 79