AMP: 79 Location: Boston Post Rd and Old Boston Post Rd, Old Saybrook Reassurance shield after the first of three CT 154 junctions. AMP: 79 Location: Boston Post Rd and Old Boston Post Rd, Old Saybrook Welcome to downtown Old Saybrook! AMP: 80 Location: Boston Post Rd and Main St, Old Saybrook As we enter … Continue reading U.S. Route 1, CT 154 to CT 154