AMP: 87 Location: Willimantic Rd and Middletown Rd, Columbia Reassurance shield after the CT 66 junction as we move back onto a two lane highway. AMP: 85 Location: Willimantic Rd and Whitney Rd, Columbia Reassurance shield a couple miles later. AMP: 84 Location: US 6 and Parker Bridge Rd, Andover A mile and a half … Continue reading U.S. Route 6, CT 66 to CT 87