AMP: 76 Location: Boston Tpk and Hop River Rd, Bolton As US 44 joins, US 6 and 44 widen into a freeway again, which will eventually turn into I-384. 6 and 44 will peel off in a half mile to follow surface streets through Bolton and Manchester. AMP: 76 Location: Boston Post Rd and I-384, … Continue reading U.S. Route 6, US-44 to I-384