AMP: 6 Location: Hebron Rd and US 6, Andover Reassurance shield as CT 316 begins. AMP: 5 Location: Hebron Rd and Boston Hill Rd, Andover A half mile into CT 316, turn right for SR 603 at this unmarked junction. 603 heads over to CT 85. Stay straight for 316 south. S to CT 66 … Continue reading Connecticut Route 316, US-6 to SR 603