U.S. Route 1 in Maine

U.S. Route 1 marker
U.S. Route 1
Map
US 1 highlighted in red
Route information
Maintained by MaineDOT
Length526.05 mi[1][2] (846.60 km)
Existed1926–present
Major junctions
South end US 1 in Portsmouth, NH
Major intersections
North end Route 161 in Clair, NB
Location
CountryUnited States
StateMaine
CountiesYork, Cumberland, Sagadahoc, Lincoln, Knox, Waldo, Hancock, Washington, Aroostook
Highway system
I-495 US 1A
Route 20N.E. Route 25

U.S. Route 1 (US 1) in the U.S. state of Maine is a major north–south section of the United States Numbered Highway System, serving the eastern part of the state. It parallels the Atlantic Ocean from New Hampshire north through Portland, Brunswick, and Belfast to Calais, and then the St. Croix River and the rest of the Canada–United States border via Houlton to Fort Kent. The portion along the ocean, known as the Coastal Route, provides a scenic alternate to Interstate 95 (I-95).

  1. ^ Cite error: The named reference MaineDOT Map was invoked but never defined (see the help page).
  2. ^ American Association of State Highway and Transportation Officials, United States Numbered Highways, 1989 Edition Archived 2007-02-04 at the Wayback Machine