US 1 (MA)

U.S. Route 1
Route information
Maintained by MassDOT
Length:	86.253 mi (138.811 km)
Existed:	1926 – present
Major junctions
South end:	US 1 in Pawtucket, RI
	I‑295 in North Attleborough I‑495 in Plainville I‑95 / Route 128 in Dedham I‑93 / Route 3 in Braintree I‑90 / I‑93 in Boston I‑95 / Route 128 in Peabody
North end:	US 1 in Seabrook, NH
Location
Counties:	Bristol, Norfolk, Suffolk, Middlesex, Essex
Highway system
United States Numbered Highway System List Special Divided Replaced Massachusetts State Highway System Interstate US State ← I‑895 Route 1A → ← Route 1A Route 2 →

In the U.S. state of Massachusetts, U.S. Route 1 is a major north–south highway through Boston. The portion of US 1 south of Boston is also known as the Boston-Providence Turnpike, Washington Street, or the Norfolk and Bristol Turnpike, and portions north of the city are known as the Northeast Expressway and the Newburyport Turnpike.

US 1 enters the state from Rhode Island at Attleboro. It closely parallels Interstate 95 as it goes through the towns of North Attleborough, Plainville, Wrentham, Foxborough (where Gillette Stadium is), Walpole, Sharon, Norwood (where a segment is known as the Norwood Automile due to the many car dealerships that line the road), and Westwood. US 1 then has a wrong-way concurrency with I-95 up to the junction with Interstate 93 then travels along with Interstate 93 from Canton through downtown Boston. The two highways separate just after passing through the Thomas P. O'Neill Jr. Tunnel and crossing the Leonard P. Zakim Bunker Hill Memorial Bridge. The route crosses the Tobin Bridge traveling over Chelsea and Revere as the Northeast Expressway, then as a four to six lane RIRO expressway (surface road without at-grade intersections or traffic lights) through Malden, Saugus and Lynnfield. From Lynnfield, US 1 again closely parallels I-95 going through the towns of Peabody, Danvers, Topsfield, Ipswich, Rowley, Newbury, Newburyport, and Salisbury, before it enters the state of New Hampshire.

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Wikipedia