AMP: 2 Location: Butts Bridge Rd and Jewett City Rd, Canterbury SR 668 is a quick connector over the Butts Bridge to Canterbury center. AMP: 0 Location: Butts Bridge Rd and Depot Rd, Canterbury A mile and a half into the route, we’ll hit the highlight of SR 668 – the 1937 Butts Bridge – … Continue reading Connecticut State Road 668, CT 12 to CT 169