AMP: 13 Location: I-290 and Boylston St, Boylston Just after the Mass. 140 interchange, we’ll very briefly enter Boylston. AMP: 14 Location: I-290 and Central St, Northborough A mile later, we’ll enter Northborough, abbreviated as Northboro. AMP: 15 Location: I-290 and Central St, Northborough 4 miles to I-495. AMP: 15 Location: I-290 and Central St, … Continue reading Interstate 290, MA 140 to I-495/MA 85