US Highway 1 (place)

A chain of United States roads, streets, and highways stretching along the East Coast of the United States, from Fort Kent, Maine, to Key West, Florida. It traverses all of the original 13 states, except Delaware.

In 1925, US 1 was numbered as such because parts of it follow the first true road connecting the 13 Colonies, the "Post Road".  Traffic on US 1 now follows I-95 mostly, but US 1 is quite free of interstate highways for long stretches, going through the center of some of the largest cities in the US.

Jct - Junction
C - Captured
F - Free
BP - Begin Peralleling
EP - End Paralleling
OWP - One-way pair

Maine

• Fort Kent, BP¹ St. John River
• Madawaska, across from Edmundston, New Brunswick
• Van Buren, across from St. Léonard, splits
• US 1 proper EP¹:
• Caribou
• Presque Isle
• Alt US 1:
• Hamlin, EP
• Limestone
• Firt Fairfield
• Mars Hill
• Houlton, Jct¹ I-95, Jct US 2
• Danforth
• Topsfield
• Calais
• Perry
• Whiting
• Machias
• Harrington
• Gouldsboro
• Ellsworth, split
• US 1 proper through Bucksport, X Penobscot River, BP Penobscot Bay
• Alt US 1 through Bangor, Jct I-95 and US 2
• Stockton Springs
• Searsport
• Belfast
• Camden
• Rockland, EP
• Wiscasset
• Bath
• Brunswick, BP I-95
• Freeport
• Portland, Jct I-295. Baxter Blvd, Valley St, Main St
• Saco, Maine
• Kennebunk
• Kittery
• Salmon Falls River

New Hampshire

• Portsmouth
• Hampton
• Seabrook

Massachusetts

• Salisbury
• Merrimack River
• Newburyport, a branch which once went to Newbury and Salem is no longer a US highway.
• Topsfield (see above), Newburyport Rd
• Jct I-95, Blue Star Memorial Highway
• South Lynnfield, access to Walden Pond
• Revere, now Northeast Expresway
• Mystic River (Mystic-Tobin Bridge) into
• Boston
• Charlestown), C I-93
• Until recently the Charlestown Bridge carried the Central Artery over the Charles River into downtown Boston.  The Big Dig will carry I-93 and US 1 over a new bridge, and the Central Artery will be underground, debouching into the
• Quincy
• Braintree, Jct Boston Beltway
• End I-93, Jct I-95
• Islington, F
• Norwood
• South Walpole
• North Attleboro
• Jct I-295
• US 1 Splits,
• US 1 proper
• South Attleboro

Rhode Island

• US 1 proper
• Pawtucket, Broadway/I-95 ramp-Walcott St-Main St OWP, Main St, "Downtown Circulator" High St-Summer St-Goff Av-Park Pl/East Av OWP, George St, Pawtucket Av
• Providence, Main St-Smith Street OWP, Gaspee St, Francis St, Foundain St/Sabin St OWP, Broadway, Broad Street, Elmwood Av
• Cranston
• Alt US 1
• Pawtucket, Newport Av
• Rumford, Pawtucket Av
• East Providence, C I-195
• Providence, F (Point St, Allens Av, Narragansett Blvd)
• Cranston, Warwick Av
• Narragansett, Commander Perry Memorial Highway
• Warwick, Post Road
• Wakefield
• Westerly

Connecticut

• Pawcatuck
• Mystic (Main St)
• Groton, C I-95
• Thames River
• New London, F Colman St, Jefferson Av, BP I-95
• Old Lyme, C
• Connecticut River
• Old Saybrook, F
• Guilford
• New Haven (Forbes Av, Water St, Columbus Av, Orange Av)
• Milford, Boston Post Rd, Bridgeport Av
• Housatonic River
• Stratford, Barnum Av, Boston Av
• Bridgeport, Boston Av, North Av, Kings Highway, Boston Post Rd
• Fairfield
• Westport
• Norwalk, Westport Av, Boston post Rd
• Darien
• Stamford, Main St
• Greenwich, Putnam Av

New York

• Port Chester
• Rye, Boston Post Rd
• Mamaroneck
• New Rochelle
• New York City
• The Bronx
• Boston Post Rd
• Fordham Rd
• C I-95 (Cross-Bronx Exwy)
• Harlem River
• Manhattan
• C US 9
• Hudson River (George Washington Bridge)

New Jersey

• Fort Lee, F of I-95
• North Bergen, Tonnelle Av
• Jersey City, Tonnelle Av, Communipaw Blvd]
• Hackensack River
• Passaic River
• Newark, Pulaski Skyway, Carnegie Av
• Elizabeth, Spring St
• Linden, Edgar Rd
• Rahway
• Woodbridge, F
• Piscataway
• New Brunswick
• Brunswick Pike misses Princeton proper but gives a good view of the headquarters of Dow Jones & Company
• Jct I-295 and I-95
• Trenton, Trenton Frwy
• Delaware River

Pennsylvania

• Morrisville (Lincoln Highway)
• Jct I-95
• Jct I-276 (Pennsylvania Turnpike)
• Philadelphia
• Roosevelt Blvd
• C US 13 at Levick St
• F, Roosevelt Expressway
• Jct I-76
• F, City Av, Jct US 30
• Township Line Rd, State Rd, Media Bypass, Baltimore Pike
• Chadds Ford
• Longwood
• Nottingham

Maryland

• Rising Sun, Conowingo Rd
• Susquehanna River, atop Conowingo Dam
• Bel Air, Conowingo Rd, Hickory Bypass, Bel Air Bypass, Belair Rd
• Baltimore, Belair Rd (Jct I-695), North Av, Fulton Av & Monroe St (jct US 40), Wilkens Av, Southwest Blvd, Washington Blvd
• Laurel, Baltimore Av/2nd St OWP
• Beltsville, Baltimore Av
• College Park
• Hyattsville, Baltimore Av, split
• US 1 proper follows Rhode Island Av
• Alt US 1 follows Baltimore Av into Bladensburg, coming out on Bladensburg Rd

District of Columbia

• Washington
• US 1 proper
• Rhode Island Av
• 6th St NW
• Alt US 1
• Bladensburg Rd
• New York Av, C US 50
• 6th St
• Constitution Av
• Potomac River

Virginia

• Arlington
• Alexandria, Jefferson Davis Highway
• Woodbridge, BP I-95 again
• Quantico
• Rappahannock River
• Fredericksburg, Jct US 17
• Richmond,
• Brook Rd
• Chamberlayne Av (C US 301)
• James River
• Jefferson Davis Hwy
• Petersburg, EP I-95, F, Washington St, Jct US 460, BP I-85
• South Hill, Jct US 58
• Roanoke River

North Carolina

• Norlina
• Henderson
• Raleigh, North Blvd, Belt Line (C US Highway 70|US 70] and I-440), Cliff Benson Frwy (F US 70), Jct I-40, F
• Sanford, Jct US 420, C US 15 and US 501
• Southern Pines, F
• Rockingham

South Carolina

• Great Pee Dee River
• Chedaw
• Camden, BP I-20
• Columbia
• Two Notch Rd, Jct I-77
• Camden Rd,
• Taylor St & Hampton St, Jct US 76, 378, 21, 321, 176
• Congaree River
• Augusta Rd, Jct I-26
• Lexington
• Aiken, C  US 78
• C  US 25
• Savannah River

Georgia

• Augusta, Peach Orchard Hwy, F US 25, Gordon St, F US 25, Dean's Bridge Rd, Jct I-520
• C US 221
• Louisville, F
• Swainsboro
• Jct I-16
• Lyons (near Vidalia of onion fame)
• Baxley
• C US 23
• Alma
• Emerson Park
• Suwanee River
• Folkston
• St. Mary's River

Florida

• Callahan, New Kings Rd
• Jacksonville
• 20th St, Jct I-95, split
• US 1 proper
• Main St / State St OWP
• St. Johns River
• C I-95¹, F, Phillips Hwy, BP I-95
• Alt US 1
• 20th St Expy,
• Haines St
• St Johns River
• Emerson St to Phillips Hwy
• St. Augustine, Dixie Hwy, Ponce de Leon Blvd
• Bunnell
• Daytona Beach, Ridgewood Av, BP Atlantic Ocean coastal bays
• New Smyrna Beach
• Titusville, access to Cape Canaveral
• Cocoa, access to Cape Canaveral
• Melbourne
• Vero Beach
• Fort Pierce
• St. Lucie River
• Palm City
• Jupiter
• West Palm Beach, Broadway, Dixie Hwy & Olive Av
• Fort Lauderdale, Federal Hwy, Sunrise Blvd
• Hollywood
• Miami
• Biscayne Blvd
• 2nd Av, Jct US 41,
• Brickel Blvd,
• Jct southern extreme of I-95
• Dixie Hwy
• Coral Gables
• Homestead
• Florida City
• Barnes Sound
• Overseas Highway
• Key Largo
• Plantation
• Islamorada
• Marathon
• Big Pine
• Key West

¹Every map I can find shows US 1 following I-95 for a short section; however, SPUI's website directs it onto Kings Av and Prudential Dr instead.

AAA Road Atlas, 1994

http://www.futureboston.org/bostonmaps.htm

http://www.bigdig.com/thtml/mapframe.htm

Many thanks to SPUI for suggestions in Rhode Island and Florida, pointing me to the wonderful maps on his own website, as well as pointing me to http://www.usroute1.net/