U.S. Route 1 in Massachusetts
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U.S. Route 1
Length:	85.61 mi1 (137.78 km)
Formed:	1926
South end:	US 1 in Pawtucket, RI
Major junctions:	I-295 in North Attleboro I-495 in Plainville I-95 / Route 128 in Dedham I-90 in Boston Route 60 in Revere Route 99 in Saugus I-95 / Route 128 in Peabody
North end:	US 1 in Seabrook, NH
Massachusetts State Highway Routes < I-495 Route 1A >

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

Route description

US 1 enters the state from Rhode Island at Attleboro. It closely parallels Interstate 95 as it goes through the towns of North Attleboro, Plainville, Wrentham, Foxborough, 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 Interstate 95 up to the junction with Interstate 93 then travels along Interstate 93 from Canton through downtown Boston separating from the Interstate just after passing through the Central Artery tunnel. The route crosses the Tobin Bridge traveling over Chelsea and Revere as a freeway known as Boston's Northeast Expressway, then as a traditional six lane expressway (surface road without at-grade intersections or traffic lights) through Malden, Melrose, Saugus and Lynnfield. From Lynnfield, US 1 again closely parallels Interstate 95 going through the towns of Peabody, Danvers, Topsfield, Ipswich, Rowley, Newbury, Newburyport, and Salisbury, before it enters the state of New Hampshire.

Route 1A runs alongside Route 1 in four parts of the state.

Exit list

County	Location	Mile	Destinations	Notes
Suffolk	Chelsea	?	Beacon Street	Northbound only exit
		?	4th Street	Northbound only exit
		?	Carter Street	Southbound only exit
		?	Webster Avenue	Northbound only exit
	Revere	?	Route 16 (Revere Beach Parkway)
		?	Sargent Street	Northbound only exit
		?	Route 60 (Copeland Circle)
		?	Lynn Street/Salem Street

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History

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Lower Boston Post Road

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Turnpike era

Most of US 1 consists of two former turnpike roads - the Norfolk and Bristol Turnpike and the Newburyport Turnpike. The older roads that these turnpikes were meant to bypass are now mostly Route 1A.

Designation of Route 1

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Route C1

In the early 1930s, Route C1 was designated as an alternate route of US 1 through downtown Boston. The "C" indicated a city route. It ran along Brookline Avenue, Beacon Street, Embankment Road (modern Route 28), Charles Street, Lowell Street, Merrimac Street, and Cross Street to the west end of the Sumner Tunnel. In East Boston, it went via Porter Street to Chelsea Street then shifted to the William McClellan Highway (modern Route 1A). As Storrow Drive and the Central Artery opened in the 1950s, Route C1 was rerouted to follow portions of these highways. The Route C1 designation was removed in 1971, with US 1 taking over most of the alignment south of the Charles River, and Route 1A taking over most of the alignment north of the river. US 1 was later moved onto the Southeast Expressway leaving most of the former alignment of C1 south of the river as having no number.

Northeast Expressway

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Relocation in Boston

US 1 replaced the cancelled I-95 on the Northeast Expressway, north of downtown Boston, in the 1970s. In the late 1980s, US 1 was moved onto I-93 south of and through Boston, leaving the old route - VFW Parkway, Jamaicaway, Riverway, and Storrow Drive - without a number. There are still some street signs incorrectly indicating the former alignment as US 1, and many local residents still believe that Route 1 runs along its old trajectory.^{citation needed}

References

U.S. Route 1
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