U.S. Route 1 in New Hampshire
Encyclopedia
In the U.S. state
of New Hampshire
, U.S. Route 1
is a major north–south state highway
through Hampton and Portsmouth. It lies between Interstate 95 and New Hampshire Route 1A
.
located in southeast New Hampshire
. The route runs along the Atlantic
coastline from the Massachusetts
border north to Rye
, then turns toward downtown Portsmouth
. The southern terminus is at the Massachusetts state line in Seabrook
at the junction with Massachusetts' Route 1A
. The northern terminus is at the junction with U.S. Route 1 in Portsmouth. For the length of the road’s run along the shore, its local name is Ocean Boulevard. In Portsmouth, it is known as Miller Avenue and Sagamore Avenue.
in southeast New Hampshire
.
The southern terminus is at New Hampshire Route 1A
in Portsmouth
, near the city's southeastern boundary. The road loops around over Great Island in the Piscataqua River
through New Castle
and then back into Portsmouth. The northern terminus is at the junction with U.S. Route 1 near the Maine
state line.
U.S. state
A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...
of New Hampshire
New Hampshire
New Hampshire is a state in the New England region of the northeastern United States of America. The state was named after the southern English county of Hampshire. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Atlantic Ocean to the east, and the Canadian...
, U.S. Route 1
U.S. Route 1
U.S. Route 1 is a major north–south U.S. Highway that serves the East Coast of the United States. It runs 2,377 miles from Fort Kent, Maine at the Canadian border south to Key West, Florida. U.S. 1 generally parallels Interstate 95, though it is significantly farther west between...
is a major north–south state highway
State highway
State highway, state road or state route can refer to one of three related concepts, two of them related to a state or provincial government in a country that is divided into states or provinces :#A...
through Hampton and Portsmouth. It lies between Interstate 95 and New Hampshire Route 1A
New Hampshire Route 1A
New Hampshire Route 1A is an long state highway located in southeast New Hampshire. The route runs along the Atlantic coastline from the Massachusetts border north to Rye, then turns toward downtown Portsmouth. The southern terminus is at the Massachusetts state line in Seabrook at the junction...
.
History
US 1 follows the historic Lafayette Road through New Hampshire, named after the Marquis de Lafayette, who passed over the road in 1825.Junction list
|}New Hampshire Route 1A
New Hampshire Route 1A is an 18.32 miles (29.5 km) long state highwayState highway
State highway, state road or state route can refer to one of three related concepts, two of them related to a state or provincial government in a country that is divided into states or provinces :#A...
located in southeast New Hampshire
New Hampshire
New Hampshire is a state in the New England region of the northeastern United States of America. The state was named after the southern English county of Hampshire. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Atlantic Ocean to the east, and the Canadian...
. The route runs along the Atlantic
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...
coastline from the Massachusetts
Massachusetts
The Commonwealth of Massachusetts is a state in the New England region of the northeastern United States of America. It is bordered by Rhode Island and Connecticut to the south, New York to the west, and Vermont and New Hampshire to the north; at its east lies the Atlantic Ocean. As of the 2010...
border north to Rye
Rye, New Hampshire
Rye is a town in Rockingham County, New Hampshire, United States. The population was 5,298 at the 2010 census.-History:The first settlement in New Hampshire, originally named Pannaway, was established in 1623 at Odiorne's Point. The first settler in Rye was William Berry...
, then turns toward downtown Portsmouth
Portsmouth, New Hampshire
Portsmouth is a city in Rockingham County, New Hampshire in the United States. It is the largest city but only the fourth-largest community in the county, with a population of 21,233 at the 2010 census...
. The southern terminus is at the Massachusetts state line in Seabrook
Seabrook, New Hampshire
Seabrook is a town in Rockingham County, New Hampshire, United States. The population was 8,693 at the 2010 census. Located at the southern end of the coast of New Hampshire on the border with Massachusetts, Seabrook is noted as the location of the Seabrook Nuclear Power Station, the third-most...
at the junction with Massachusetts' Route 1A
Route 1A (Massachusetts)
Route 1A is a south–north state highway in Massachusetts. It is an alternate route to U.S. 1 with three signed sections and two unsigned sections where the highway is concurrent with its parent...
. The northern terminus is at the junction with U.S. Route 1 in Portsmouth. For the length of the road’s run along the shore, its local name is Ocean Boulevard. In Portsmouth, it is known as Miller Avenue and Sagamore Avenue.
New Hampshire Route 1B
New Hampshire Route 1B (abbreviated NH 1B) is a 4.89 miles (7.9 km) long state highwayState highway
State highway, state road or state route can refer to one of three related concepts, two of them related to a state or provincial government in a country that is divided into states or provinces :#A...
in southeast New Hampshire
New Hampshire
New Hampshire is a state in the New England region of the northeastern United States of America. The state was named after the southern English county of Hampshire. It is bordered by Massachusetts to the south, Vermont to the west, Maine and the Atlantic Ocean to the east, and the Canadian...
.
The southern terminus is at New Hampshire Route 1A
New Hampshire Route 1A
New Hampshire Route 1A is an long state highway located in southeast New Hampshire. The route runs along the Atlantic coastline from the Massachusetts border north to Rye, then turns toward downtown Portsmouth. The southern terminus is at the Massachusetts state line in Seabrook at the junction...
in Portsmouth
Portsmouth, New Hampshire
Portsmouth is a city in Rockingham County, New Hampshire in the United States. It is the largest city but only the fourth-largest community in the county, with a population of 21,233 at the 2010 census...
, near the city's southeastern boundary. The road loops around over Great Island in the Piscataqua River
Piscataqua River
The Piscataqua River, in the northeastern United States, is a long tidal estuary formed by the confluence of the Salmon Falls and Cocheco rivers...
through New Castle
New Castle, New Hampshire
New Castle is a town in Rockingham County, New Hampshire, United States. The population was 968 at the 2010 census. It is the smallest town in New Hampshire, and the only one located entirely on islands. It is home to Fort Constitution Historic Site, Fort Stark Historic Site, and the New Castle...
and then back into Portsmouth. The northern terminus is at the junction with U.S. Route 1 near the Maine
Maine
Maine is a state in the New England region of the northeastern United States, bordered by the Atlantic Ocean to the east and south, New Hampshire to the west, and the Canadian provinces of Quebec to the northwest and New Brunswick to the northeast. Maine is both the northernmost and easternmost...
state line.
Related routes
U.S. Route 1 BypassU.S. Route 1 Bypass (New Hampshire)U.S. Route 1 Bypass is a long bypass of U.S. Route 1 in Portsmouth, New Hampshire and Kittery, Maine. Most of its north section, northeast of the Portsmouth Circle where it meets the Blue Star Turnpike and Spaulding Turnpike, is built to rudimentary freeway standards, with no cross traffic but...
, a mostly-freeway bypass of downtown Portsmouth
New England Interstate Route 1, the designation of US-1 prior to 1926