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U.S. Route 3 (US 3) is a
United States Numbered Highway The United States Numbered Highway System (often called U.S. Routes or U.S. Highways) is an integrated network of roads and highways numbered within a nationwide grid in the contiguous United States. As the designation and numbering of these h ...
running from
Cambridge, Massachusetts Cambridge ( ) is a city in Middlesex County, Massachusetts, United States. It is a suburb in the Greater Boston metropolitan area, located directly across the Charles River from Boston. The city's population as of the 2020 United States census, ...
, through
New Hampshire New Hampshire ( ) is a U.S. state, state in the New England region of the Northeastern United States. It borders Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the east, and the Canadian province of Quebec t ...
, to the
Canada–United States border The international border between Canada and the United States is the longest in the world by total length. The boundary (including boundaries in the Great Lakes, Atlantic, and Pacific coasts) is long. The land border has two sections: Canada' ...
near Third Connecticut Lake, where it connects to Quebec Route 257. Massachusetts Route 3 connects to the southern terminus of US 3 in Cambridge and continues south to
Cape Cod Cape Cod is a peninsula extending into the Atlantic Ocean from the southeastern corner of Massachusetts, in the northeastern United States. Its historic, maritime character and ample beaches attract heavy tourism during the summer months. The ...
. Though it shares a number, it has never been part of US 3. Both routes, which connect end-to-end, are treated as a single state highway by the
Massachusetts Department of Transportation The Massachusetts Department of Transportation (MassDOT) oversees roads, public transit, aeronautics, and transportation licensing and registration in the US state of Massachusetts. It was created on November 1, 2009, by the 186th Sessio ...
(MassDOT). From Cambridge to Burlington, US 3 is routed on surface streets through the dense suburbs in the
Greater Boston Greater Boston is the metropolitan region of New England encompassing the municipality of Boston, the capital of the U.S. state of Massachusetts and the most populous city in New England, and its surrounding areas, home to 4,941,632. The most s ...
area. After a brief concurrency with Interstate 95 (I-95) and Route 128, the route follows its own freeway northwest, bypassing Lowell and entering New Hampshire at Nashua, becoming the
Everett Turnpike The Frederick E. Everett Turnpike, also called the Central New Hampshire Turnpike, is a controlled-access toll road in the U.S. state of New Hampshire, running from the Massachusetts border at Nashua north to Concord. The Everett Turnpike i ...
. In New Hampshire, current and former parts of US 3 are known as the Daniel Webster Highway. From Burlington, Massachusetts, to Nashua, New Hampshire, US 3 is a
freeway A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway, and expressway. Other similar terms ...
. The segment in New Hampshire is a free portion of the Everett Turnpike, while the portion in Massachusetts is known as the Northwest Expressway. From where it leaves the Everett Turnpike in Nashua northward, US 3 is generally a two-to-four lane at-grade road, though there are two super-two freeway portions in northern New Hampshire, one on the
Laconia Laconia or Lakonia (, , ) is a historical and Administrative regions of Greece, administrative region of Greece located on the southeastern part of the Peloponnese peninsula. Its administrative capital is Sparti (municipality), Sparta. The word ...
Bypass, and one where US 3 and
I-93 Interstate 93 (I-93) is an Interstate Highway in the New England states of Massachusetts, New Hampshire, and Vermont in the United States. Spanning approximately along a north–south axis, it is one of three primary Interstate Highways ...
use the Franconia Notch Parkway. The route serves as a major local arterial, connecting many of the cities of the densely populated Merrimack Valley. North of the White Mountains, the route serves as one of the only north–south roads connecting the communities of the Great North Woods Region and has New Hampshire's only border crossing between the US and Canada.


Route description

, - , , , - , , , - , Total ,


Massachusetts


Cambridge to Burlington

US 3 begins in the south along Memorial Drive in
Cambridge Cambridge ( ) is a List of cities in the United Kingdom, city and non-metropolitan district in the county of Cambridgeshire, England. It is the county town of Cambridgeshire and is located on the River Cam, north of London. As of the 2021 Unit ...
, along the
Charles River The Charles River (Massachusett language, Massachusett: ), sometimes called the River Charles or simply the Charles, is an river in eastern Massachusetts. It flows northeast from Hopkinton, Massachusetts, Hopkinton to Boston along a highly me ...
, at an interchange with Massachusetts Avenue ( Route 2A). The road continues as southbound Route 3 toward Downtown Boston, while northbound US 3 heads west, then north along the river toward
Harvard University Harvard University is a Private university, private Ivy League research university in Cambridge, Massachusetts, United States. Founded in 1636 and named for its first benefactor, the History of the Puritans in North America, Puritan clergyma ...
, joining with Route 2 along the way. It runs along the north bank of the Charles River, opposite Soldiers Field Road in
Allston Allston is an officially recognized neighborhood in Boston, Massachusetts, United States. It was named after the American painter and poet Washington Allston. It comprises the land covered by the zip code 02134. For the most part, Allston is ...
along this stretch. Passing south of
Harvard Square Harvard Square is a triangular plaza at the intersection of Massachusetts Avenue (Boston), Massachusetts Avenue, Brattle Street (Cambridge, Massachusetts), Brattle Street and John F. Kennedy Street near the center of Cambridge, Massachusetts, C ...
, US 3 and Route 2 transition onto the Fresh Pond Parkway and join Route 16. Near Alewife station, Route 2 splits off as a
freeway A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway, and expressway. Other similar terms ...
to the west (Concord Turnpike), while US 3 and Route 16 stay on the Alewife Brook Parkway. Shortly thereafter, US 3 splits from the parkway (which continues as Route 16) and joins Route 2A (Massachusetts Avenue) westbound, crossing into Arlington. In the center of town, US 3 and Route 2A split from Massachusetts Avenue and overlap briefly with Route 60 before continuing along Mystic Street. Route 2A splits from US 3 just to the north. US 3 continues through parts of
Winchester Winchester (, ) is a City status in the United Kingdom, cathedral city in Hampshire, England. The city lies at the heart of the wider City of Winchester, a local government Districts of England, district, at the western end of the South Downs N ...
and Woburn without any major intersections before entering Burlington and interchanging with
I-95 Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running from U.S. Route 1 (US 1) in Miami, Florida, north to the Houlton–Woodstock Border Crossing between Maine and the ...
and Route 128 (Yankee Division Highway) at exit 51A. US 3 joins the freeway to connect with the Northwest Expressway, while its historic surface alignment continues as Route 3A.


Burlington to Tyngsborough (Northwest Expressway)

US 3 runs along of I-95 (Route 128) in a
wrong-way concurrency Wrong way may refer to: * a traffic sign to warn of wrong-way driving * nickname of Douglas Corrigan (1907–1995), an American aviator who flew east from New York to Ireland instead of west to California in 1938 * nickname of Roy Riegels (1908–1 ...
before exiting at exit 50A onto its own freeway, the Northwest Expressway. Originally built in the 1950s, before the cancelation of the Inner Belt, the US 3 freeway was to have extended into metro Boston before being truncated to I-95. Consequently, a partially completed
cloverleaf interchange A cloverleaf interchange is a two-level interchange (road), interchange in which all turns are handled by slip roads. To go left (in right-hand traffic; reverse directions in left-driving regions), vehicles first continue as one road passe ...
connects US 3 to I-95. Exit numbers on the US 3 freeway start at milemarker 72 since Route 3 and US 3 are counted as one highway by MassDOT. The freeway closely parallels Route 3A, the historic alignment of US 3, along its entire length from Burlington to the
New Hampshire New Hampshire ( ) is a U.S. state, state in the New England region of the Northeastern United States. It borders Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the east, and the Canadian province of Quebec t ...
state border. It passes through Billerica and into
Chelmsford Chelmsford () is a city in the City of Chelmsford district in the county of Essex, England. It is the county town of Essex and one of three cities in the county, along with Colchester and Southend-on-Sea. It is located north-east of London ...
, where it connects with I-495 and the Lowell Connector, a freeway spur into downtown Lowell. Continuing north, the freeway briefly enters Lowell, then passes through North Chelmsford and Tyngsborough before crossing the state line into
Nashua, New Hampshire Nashua () is a city in southern New Hampshire, United States. As of the 2020 United States census, 2020 census, it had a population of 91,322, the second-largest in northern New England after nearby Manchester, New Hampshire, Manchester. It is on ...
. The freeway continues north as the
Everett Turnpike The Frederick E. Everett Turnpike, also called the Central New Hampshire Turnpike, is a controlled-access toll road in the U.S. state of New Hampshire, running from the Massachusetts border at Nashua north to Concord. The Everett Turnpike i ...
. The Burlington to Tyngsborough area maintains a
501(c)(6) A 501(c) organization is a nonprofit organization in the federal law of the United States according to Internal Revenue Code (26 U.S.C. § 501(c)). Such organizations are exempt from some federal income taxes. Sections 503 through 505 set ou ...
nonprofit A nonprofit organization (NPO), also known as a nonbusiness entity, nonprofit institution, not-for-profit organization, or simply a nonprofit, is a non-governmental (private) legal entity organized and operated for a collective, public, or so ...
representative entity known as the Middlesex 3 Coalition and its affiliate agency the Middlesex 3 TMA, which provides collaborative support to businesses and individuals within the jurisdiction to build consensus on transportation and developmental needs.


New Hampshire

US 3 passes through most of the state's major cities and towns and is the only highway to extend from the
Massachusetts Massachusetts ( ; ), officially the Commonwealth of Massachusetts, is a U.S. state, state in the New England region of the Northeastern United States. It borders the Atlantic Ocean and the Gulf of Maine to its east, Connecticut and Rhode ...
state border in the south to the Canadian border in the north. Running for in New Hampshire, US 3 is by far the longest signed highway in the state. For much of its routing, US 3 closely parallels I-93, serving as a local route to the freeway.


Everett Turnpike (Nashua)

US 3 crosses the state border into Nashua and immediately becomes concurrent with the
Everett Turnpike The Frederick E. Everett Turnpike, also called the Central New Hampshire Turnpike, is a controlled-access toll road in the U.S. state of New Hampshire, running from the Massachusetts border at Nashua north to Concord. The Everett Turnpike i ...
, running on the freeway for along the western side of the city.


Daniel Webster Highway, local roads, and NH 28 concurrency (Nashua – Suncook)

US 3 leaves the Everett Turnpike at exit 7E, crosses
New Hampshire Route 101A New Hampshire Route 101 (NH 101) is a state-maintained highway in southern New Hampshire extending from Keene to Hampton Beach. It is the major east–west highway in the southern portion of the state. Most of its eastern portion is a major fr ...
(NH 101A) and turns northeast for approximately along a segment known as the Henri Burque Highway, before turning north onto Concord Street, which soon becomes known as the Daniel Webster Highway. (Some locals erroneously refer to the Everett Turnpike from exit 7 through the I-293 interchange as US 3 and refer to the actual US 3 only as the Daniel Webster Highway or "Old Route 3".) US 3 continues north through the town of Merrimack and into
Bedford Bedford is a market town in Bedfordshire, England. At the 2011 Census, the population was 106,940. Bedford is the county town of Bedfordshire and seat of the Borough of Bedford local government district. Bedford was founded at a ford (crossin ...
, where it becomes South River Road. The highway parallels I-293 until it turns east in
Manchester Manchester () is a city and the metropolitan borough of Greater Manchester, England. It had an estimated population of in . Greater Manchester is the third-most populous metropolitan area in the United Kingdom, with a population of 2.92&nbs ...
and then crosses the
Merrimack River The Merrimack River (or Merrimac River, an occasional earlier spelling) is a river in the northeastern United States. It rises at the confluence of the Pemigewasset and Winnipesaukee rivers in Franklin, New Hampshire, flows southward into M ...
on Queen City Avenue, just after its intersection with I-293/ NH 3A and NH 114A. US 3 and NH 3A are signed in a wrong-way concurrency for approximately before US 3 turns north onto Elm Street toward downtown Manchester. After approximately , US 3 turns east onto Webster Street, then joins NH 28 to proceed in a northeasterly direction toward Hooksett, interchanging with
I-93 Interstate 93 (I-93) is an Interstate Highway in the New England states of Massachusetts, New Hampshire, and Vermont in the United States. Spanning approximately along a north–south axis, it is one of three primary Interstate Highways ...
. The two routes continue as Hooksett Road, then the Daniel Webster Highway.


In Concord

In Suncook, NH 28 leaves to the northeast, and US 3 proceeds northwest toward Concord on Pembroke Street, becoming Manchester Street when it enters the Concord city limits. After crossing the Merrimack River and interchanging with I-93, US 3 intersects NH 3A (South Main Street), which terminates at its parent route. US 3 traverses downtown Concord as North and South Main streets (briefly overlapping with US 202 and NH 9), then follows North State Street to Fisherville Road to Village Street in Penacook before crossing the Contoocook River into Boscawen.


Further north (Boscawen – Lincoln)

US 3 travels north through Boscawen, briefly overlapping with US 4. The highway parallels the Merrimack River north into Franklin, where the highway meets NH 11. US 3 joins NH 11 and turns east; NH 3A also resumes at this intersection, continuing north. US 3 and NH 11 briefly form a three-route concurrency with NH 127 in Franklin, then pass through Tilton, crossing NH 132 and passing the western end of NH 140. Continuing northeast past Lake Winnisquam, US 3 and NH 11 reach
Laconia Laconia or Lakonia (, , ) is a historical and Administrative regions of Greece, administrative region of Greece located on the southeastern part of the Peloponnese peninsula. Its administrative capital is Sparti (municipality), Sparta. The word ...
and turn onto the Laconia– Gilford Bypass, intersecting with NH 106, NH 107, and NH 11A. At the northern end of the bypass, US 3 and NH 11 split after a overlap, with the U.S. Route continuing north on Lake Street to Weirs Beach and an intersection with NH 11B. US 3 continues north as the Daniel Webster Highway to Meredith at the northern end of Meredith Bay on Lake Winnipesaukee. In Meredith, US 3 intersects the northern terminus of NH 106, then joins NH 25 and continues north past
Squam Lake Squam Lake is a lake located in the Lakes Region (New Hampshire), Lakes Region of central New Hampshire, United States, south of the White Mountains (New Hampshire), White Mountains, straddling the borders of Grafton County, New Hampshire, Grafton ...
into
Holderness Holderness is an area of the East Riding of Yorkshire, on the north-east coast of England. An area of rich agricultural land, Holderness was marshland until it was drained in the Middle Ages. Topographically, Holderness has more in common wit ...
, passing the western terminuses of NH 25B and NH 113. Through Holderness, US 3 and NH 25 gradually turn west, then southwest, passing the southern end of NH 175 and then reaching the northern end of NH 132 in Ashland. From Ashland to North Woodstock, US 3 proceeds north, roughly paralleling
I-93 Interstate 93 (I-93) is an Interstate Highway in the New England states of Massachusetts, New Hampshire, and Vermont in the United States. Spanning approximately along a north–south axis, it is one of three primary Interstate Highways ...
in the Pemigewasset River valley. Along this stretch it passes through the towns of
Plymouth Plymouth ( ) is a port city status in the United Kingdom, city and unitary authority in Devon, South West England. It is located on Devon's south coast between the rivers River Plym, Plym and River Tamar, Tamar, about southwest of Exeter and ...
(NH 25 splits from US 3 near I-93 in Plymouth, which also marks the true northern terminus of NH 3A), West Campton (where it meets the western end of NH 49, the principal access road to Waterville Valley), Thornton, and
Woodstock The Woodstock Music and Art Fair, commonly referred to as Woodstock, was a music festival held from August 15 to 18, 1969, on Max Yasgur's dairy farm in Bethel, New York, southwest of the town of Woodstock, New York, Woodstock. Billed as "a ...
. In North Woodstock, US 3 crosses NH 112 (known to the east as the Kancamagus Highway).


Interstate 93 concurrency through the Franconia Notch State Park (Lincoln – Franconia)

Continuing north, US 3 joins with I-93 as it passes through Franconia Notch State Park, one of the more scenic drives in the White Mountains. This stretch of freeway is known as the Franconia Notch Parkway and is a rare section of
Interstate Highway The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, or the Eisenhower Interstate System, is a network of controlled-access highways that forms part of the National Hi ...
with only one lane in each direction.


Northernmost end (Franconia – Pittsburg)

US 3 separates from I-93 at exit 35, shortly north of the northern park boundary in
Franconia Franconia ( ; ; ) is a geographical region of Germany, characterised by its culture and East Franconian dialect (). Franconia is made up of the three (governmental districts) of Lower Franconia, Lower, Middle Franconia, Middle and Upper Franco ...
. From there, NH 141 branches northwest and US 3 heads north and east toward Twin Mountain and a junction with US 302. This portion of the road is noted for fairly frequent
moose The moose (: 'moose'; used in North America) or elk (: 'elk' or 'elks'; used in Eurasia) (''Alces alces'') is the world's tallest, largest and heaviest extant species of deer and the only species in the genus ''Alces''. It is also the tal ...
sightings, especially during sunrise and sunset when moose are particularly active. Heading north from Twin Mountain, US 3 passes through the village of Carroll, where NH 115 branches to the northeast and US 3 bears to the northwest and the town of Whitefield. In the center of Whitefield, NH 142 branches to the northwest and NH 116 crosses, running roughly southwest to northeast. US 3 continues north to Lancaster, where it joins US 2 in the town center, and where NH 135 branches off to the west. After US 2 leaves to the west, US 3 continues north, roughly paralleling the course of the
Connecticut River The Connecticut River is the longest river in the New England region of the United States, flowing roughly southward for through four states. It rises 300 yards (270 m) south of the U.S. border with Quebec, Canada, and discharges into Long Isl ...
(which also forms the border with
Vermont Vermont () is a U.S. state, state in the New England region of the Northeastern United States. It borders Massachusetts to the south, New Hampshire to the east, New York (state), New York to the west, and the Provinces and territories of Ca ...
), through
Northumberland Northumberland ( ) is a ceremonial counties of England, ceremonial county in North East England, on the Anglo-Scottish border, border with Scotland. It is bordered by the North Sea to the east, Tyne and Wear and County Durham to the south, Cumb ...
and Groveton, where NH 110 ends. North of Groveton, US 3 continues to follow the river, through Stratford, North Stratford, and Columbia, until it reaches Colebrook, where it crosses NH 26 and meets the southern terminus of NH 145. Still following the Connecticut River north, US 3 passes through portions of Stewartstown and Clarksville. In Stewartstown, the road turns more directly east (still following the Connecticut River, which is no longer a boundary), before resuming a northeasterly direction through Pittsburg. Its last major intersection is at the northern terminus of NH 145. US 3 continues north for another , eventually reaching the Pittsburg–Chartierville Border Crossing, where the road crosses into Chartierville, Quebec, and becomes Quebec Route 257. In total, US 3 runs along the Connecticut River and its source lakes for approximately . Sections of US 3 in Colebrook are named after Scott E. Phillips and Leslie G. Lord, members of the New Hampshire State Police killed in the line of duty on August 19, 1997.


History


New England route

Before the establishment of the U.S. Numbered Highway System, the section of US 3 and Route 3 from Orleans, Massachusetts, to Colebrook, New Hampshire, was part of the New England road marking system as New England Route 6. It was replaced in its entirety with the establishment of US 3 and Route 3 in 1926.


Massachusetts

US 3 in Massachusetts closely follows the route of the early 19th-century Middlesex Canal and Middlesex Turnpike. The modern Northwest Expressway was begun near Route 110 in Lowell before
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
. In the 1950s, it was extended south to Route 128 (later overlapped by I-95), and, by the 1960s, it was completed north from
Chelmsford Chelmsford () is a city in the City of Chelmsford district in the county of Essex, England. It is the county town of Essex and one of three cities in the county, along with Colchester and Southend-on-Sea. It is located north-east of London ...
to New Hampshire. By 2005, the chronically congested four-lane road, largely with antiquated ramps around Lowell, was widened to six lanes (as it had been in Nashua, New Hampshire, a few years prior) with a breakdown lane on both the left and right sides of the road, and many interchanges were modernized in what was comically known as "The Big Wide", in reference to Massachusetts' other "Big" construction project (the Big Dig). The roadbed and bridges were built to support a fourth lane in each travel direction for future expansion. The $365-million (equivalent to $ in ), widening project was completed in 2005 from Burlington to the New Hampshire border. The final section of the expressway was planned for inner suburban towns northwest of
Boston Boston is the capital and most populous city in the Commonwealth (U.S. state), Commonwealth of Massachusetts in the United States. The city serves as the cultural and Financial centre, financial center of New England, a region of the Northeas ...
. The expressway was to supply a new route for US 3, between Route 128 and the canceled I-695 (Inner Belt). This was one of the expressway projects canceled in Governor Francis Sargent's 1970 moratorium on expressway construction within Route 128. The latter section of the expressway was a key component of the "Master Plan Highway Plan for Metropolitan Boston". The highway would have traveled through Lexington, Arlington, Medford, Somerville, and Cambridge, before linking with the Inner Belt Expressway. The original plan called for US 3 and Route 2 to link up at the Lexington–Arlington border and continue southeasterly, crossing Route 16/Mystic Valley Parkway at the Arlington–Somerville border and proceeding into Cambridge toward Union Square, Somerville. A 1962 plan called for Route 2 and US 3 to converge at Alewife Brook Parkway with a longer stretch of new highway for US 3 paralleling Lowell Street in Lexington and Summer Street in Arlington. Exit numbers along the Northwest Expressway section in Massachusetts were to be changed to mileage based numbers under a project to start in 2016, but that project was postponed. In November 2019, the MassDOT announced it would be proceeding with the project in 2020.


Termini

According to the
American Association of State Highway and Transportation Officials The American Association of State Highway and Transportation Officials (AASHTO) is a standards setting body which publishes specifications, test protocols, and guidelines that are used in highway A highway is any public or private road ...
(AASHTO) route log, the southern terminus of US 3 is at the junction of Route 2A and Route 3 in
Cambridge Cambridge ( ) is a List of cities in the United Kingdom, city and non-metropolitan district in the county of Cambridgeshire, England. It is the county town of Cambridgeshire and is located on the River Cam, north of London. As of the 2021 Unit ...
, which is where Route 2A crosses the Charles along the Harvard Bridge (also known as the Massachusetts Avenue Bridge). This is a change from AASHTO's 1989 Route Log which placed the terminus at US 20 in Boston, where Route 2 currently meets US 20 after crossing the
Charles River The Charles River (Massachusett language, Massachusett: ), sometimes called the River Charles or simply the Charles, is an river in eastern Massachusetts. It flows northeast from Hopkinton, Massachusetts, Hopkinton to Boston along a highly me ...
at the Boston University Bridge. This was where US 3 met US 1 until that highway was rerouted in 1971. The original northern terminus of US 3 (in 1926) was at Colebrook, New Hampshire, but the highway was extended to West Stewartstown in 1928 and to Pittsburg in 1937. Colebrook was the northern terminus again from 1939 to 1940. Since 1940, the highway has run through Pittsburg to the Pittsburg–Chartierville Border Crossing.


Major intersections

Although MassDOT inventories Route 3 and US 3 as one continuous route, this table includes the mileage only for US 3 starting from its southern terminus in Cambridge.


Special routes

US 3 has one existing
special route In road transportation in the United States, a special route is a road in a numbered highway system that diverts a specific segment of related traffic away from another road. They are featured in many highway systems; most are found in the Inte ...
, a
business route A business route (or business loop, business spur, or city route) in the United States is a short special route that branches off a parent numbered highway at its beginning, continues through the central business district of a nearby city or to ...
through Laconia, New Hampshire. Four other special routes may have existed in the past: an alternate and business route between
Tyngsborough, Massachusetts Tyngsborough (also spelled Tyngsboro) is a town in northern Middlesex County, Massachusetts, Middlesex County, Massachusetts, United States. Tyngsborough is from Boston along the U.S. Route 3, Route 3 corridor, and located on the New Hampshire s ...
, and
Concord, New Hampshire Concord () is the capital city of the U.S. state of New Hampshire and the county seat, seat of Merrimack County, New Hampshire, Merrimack County. As of the 2020 United States census the population was 43,976, making it the List of municipalities ...
, and bypass routes around Concord and
Nashua, New Hampshire Nashua () is a city in southern New Hampshire, United States. As of the 2020 United States census, 2020 census, it had a population of 91,322, the second-largest in northern New England after nearby Manchester, New Hampshire, Manchester. It is on ...
.


Tyngsborough–Concord alternate route


Tyngsborough–Concord business route


Concord bypass route


Nashua bypass route


Laconia business loop

U.S. Route 3 Business (US 3 Bus.) is a signed
business route A business route (or business loop, business spur, or city route) in the United States is a short special route that branches off a parent numbered highway at its beginning, continues through the central business district of a nearby city or to ...
running north–south through downtown Laconia, New Hampshire. It runs from US 3 and NH 11 in Belmont north to US 3 in Laconia, along NH 107 and NH 11A. It is a former alignment of US 3, used before the Laconia–Gilford bypass was built.


See also

* *


References


External links


US 3/Northwest Expressway on Bostonroads.com

Photos of US 3 in New Hampshire


{{DEFAULTSORT:U.S. Route 03 03 03 03 Transportation in Middlesex County, Massachusetts Transportation in Hillsborough County, New Hampshire Transportation in Merrimack County, New Hampshire Transportation in Belknap County, New Hampshire Transportation in Grafton County, New Hampshire Transportation in Coös County, New Hampshire