U.S. Route 3
Route information
Length	277.00 mi[1] (445.79 km)
Existed	1926[1]–present
Major junctions
South end	Route 2A / Route 3 in Cambridge, Mass.
Major intersections	Route 2 in Cambridge, Mass. Route 16 in Cambridge, Mass. Route 60 in Arlington, Mass. I‑95 / Route 128 in Burlington, Mass. I‑495 in Chelmsford, Mass. Everett Turnpike in Nashua, N.H. NH 101 near Manchester, N.H. US 4 near Concord, N.H. I-93 in Franconia, N.H. US 2 in Lancaster, N.H.
North end	Route 257 near Chartierville, Quebec
Location
Country	United States
Highway system
United States Numbered Highway System List Special Divided

U.S. Route 3 is a highway that travels from Cambridge, Massachusetts to the Canadian border.

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