AMP: 87 Location: I-495 and North Rd, Chelmsford Just after MA 4, we’re a half mile from MA 110. There is no access from 4 onto I-495 north. AMP: 87 Location: I-495 and Chelmsford St, Chelmsford Just past Mass. 110, we’ll approach US 3. AMP: 88 Location: I-495 and Chelmsford St, Chelmsford Follow US 3 … Continue reading Interstate 495, MA 4 to MA 110