Open main menu

U.S. Route 3 (US 3) is a United States highway running 277.9 miles (447.2 km) from Cambridge, Massachusetts, through New Hampshire, to the Canada–US border near Third Connecticut Lake, where it connects to Quebec Route 257.

U.S. Route 3 marker

U.S. Route 3
US 3 highlighted in red
Route information
Maintained by MassDOT
Length 277.90 mi[citation needed] (447.24 km)
Existed 1926[citation needed] – present
Major junctions
South end Route 2A / Route 3 in Cambridge, MA
 
North end Route 257 near Chartierville, Quebec
Location
States Massachusetts, New Hampshire
Counties MA: Middlesex
NH: Hillsborough, Merrimack, Belknap, Grafton, Coos
Highway system
Route 2AMARoute 3
US 2NHNH 3A
Route 5N.E.Route 6A

Massachusetts Route 3 connects to the southern terminus of US 3 in Cambridge and continues south to Cape Cod. 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 91.3-mile (146.9 km) state highway by MassDOT. From Cambridge to Burlington, U.S. 3 is routed on surface streets through the dense suburbs in the Greater Boston area. After a brief concurrency with the Massachusetts Route 128 freeway, the route follows its own freeway northwest, bypassing Lowell and entering New Hampshire at Nashua.

In New Hampshire, parts of US 3 are known as the Daniel Webster Highway. From Burlington, Massachusetts, to Nashua, New Hampshire, US 3 is a freeway. The segment in New Hampshire is a free portion of the Everett Turnpike, while the portion in Massachusetts is known as the Northwest Expressway. There are two super two freeway portions in northern New Hampshire, one on the Laconia Bypass, and one where US 3 and Interstate 93 use the Franconia Notch Parkway. Elsewhere the route is generally two to four lanes of undivided road with at-grade junctions.

Contents

Route descriptionEdit

Lengths
  mi[1] km
MA 35.70 57.45
NH 241.953 389.386
Total 277.653 446.839

MassachusettsEdit

Cambridge to BurlingtonEdit

US 3 begins in the south along Memorial Drive in Cambridge, along the Charles River, at an interchange with Massachusetts Avenue (Route 2A). The road continues "south" (actually east) as Route 3 towards downtown Boston, while US 3 heads west, then north along the river towards downtown Cambridge, joining with Route 2 along the way. It runs opposite Soldiers Field Road in Allston along this stretch. Passing south of the downtown area, US 3 and Route 2 transition onto the Fresh Pond Parkway and join Route 16 in a wrong-way concurrency (heading north on US 3, one is also heading west on Route 2 and east on Route 16). Near the Alewife MBTA station, Route 2 splits off as a freeway to the west (Concord Turnpike), while US 3 / Route 16 turn onto 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 (in another wrong-way concurrency) before continuing along Mystic Street. Route 2A splits from US 3 just to the north. US 3 continues through parts of Winchester and Woburn without any major intersections before entering Burlington and interchanging with Interstate 95 / Route 128 (Yankee Division Highway) at exit 33. 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)Edit

US 3 runs along 1.6 miles (2.6 km) of I-95 (Route 128) in a wrong-way concurrency before exiting at exit 32A onto its own freeway, the Northwest Expressway.

Originally built in the 1950s, before the cancellation 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 connects US 3 to I-95, and exit numbers on the US 3 freeway start at 25 and increase sequentially to 36.

The freeway closely parallels Route 3A, the historic alignment of US 3, along its entire 19-mile (31 km) length from Burlington to the New Hampshire state border. It passes through Billerica and into Chelmsford, where it connects with I-495 and the Lowell Connector, a freeway spur into downtown Lowell widely regarded as one of the most dangerous roads in the state. Continuing north, the freeway briefly enters Lowell, then passes through North Chelmsford and Tyngsborough before crossing the state line into Nashua, New Hampshire. The freeway continues north as the Frederick E. Everett Turnpike.

New HampshireEdit

US 3 is one of New Hampshire's most well-known roads, as it passes through most of the state's major cities and towns and is the only highway to extend from the Massachusetts state border in the south to the Canada–US border in the north. Running for 242 miles (389 km) in New Hampshire, US 3 is by far the longest signed highway in the state.

US 3 crosses the state border into Nashua and immediately becomes concurrent with the Everett Turnpike, running on the freeway for 6.7 miles (10.8 km) along the western side of the city. US 3 leaves the Everett Turnpike at exit 7E, crosses NH 101A and turns northeast for approximately 1.5 miles (2.4 km) 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 Route 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, where it becomes South River Road. The highway parallels I-293 until it turns east in Manchester and then crosses the Merrimack River 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 0.6 miles (0.97 km) before US 3 turns north onto Elm Street towards downtown Manchester. After approximately 2.2 miles (3.5 km), US 3 turns east onto Webster Street, then joins NH 28 to proceed in a northeasterly direction towards Hooksett, interchanging with I-93. The two routes continue as Hooksett Road, then the Daniel Webster Highway.

In Suncook, NH 28 leaves to the northeast, and US 3 proceeds northwest towards 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. 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 Winnisquam Lake, US 3 and NH 11 reach Laconia 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 17.3-mile (27.8 km) overlap, with the U.S. highway 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 into Holderness, passing the western termini 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 in the Pemigewasset River valley. Along this stretch it passes through the towns of Plymouth (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. In North Woodstock, US 3 crosses NH 112 (known to the east as the Kancamagus Highway).

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 the only section of Interstate highway in the country with only one lane in each direction.

US 3 separates from I-93 at exit 35, shortly north of the northern park boundary in Franconia. 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 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 (which also forms the border with Vermont), through Northumberland 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 22 miles (35 km), 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 70 miles (110 km).

HistoryEdit

New England InterstateEdit

Before the establishment of the U.S. Highway system, the section of US 3 / Massachusetts Route 3 from Orleans, Massachusetts, to Colebrook, New Hampshire, was part of the New England road marking system as New England Interstate Route 6 (NEI 6 or NE-6). It was replaced in its entirety with the establishment of US 3 and Massachusetts Route 3 in 1926.

MassachusettsEdit

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. 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 to New Hampshire. By 2005, the chronically congested four-lane road, largely with antiquated ramps around Lowell, was later 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, 21-mile (34 km) widening project was completed in 2005 from Burlington to the New Hampshire border.

The final section of the expressway was an unbuilt expressway, planned for inner suburban towns northwest of Boston, Massachusetts. The expressway was to supply a new route for U.S. Route 3, between MA 128 and the cancelled Interstate-695/Inner Belt. The highway was one of the expressway projects cancelled in the Gov. Francis Sargent's 1970 moratorium on expressway construction within MA 128. The latter section of the expressway was a key component of the "Master Plan Highway Plan for Metropolitan Boston."[2][3] The highway would have travelled through Lexington, Arlington, Medford, Somerville, and Cambridge, before linking with the Inner Belt Expressway.[2]

The original plan called for U.S. 3 and MA 2 to link up together at the Lexington-Arlington border, and continue southeasterly, crossing MA 16/Mystic Valley Parkway at the Arlington-Somerville border and proceeding into Cambridge toward Union Square, Somerville. A 1962 plan called for Routes 2 and 3 to converge at Alewife Brook Parkway with a longer stretch of new highway for Route 3 paralleling Lowell Street in Lexington and Summer Street in Arlington.[2]

Exit numbers along the Northwest Expressway section in Massachusetts were to be changed to mileage based numbers under a project to start in 2016,[4] but that project has now been indefinitely postponed.[5]

TerminiEdit

According to the AASHTO route log, the southern terminus of US 3 is at the junction of Route 2A and Route 3 in Cambridge, which is where Route 2A crosses the Charles along the Harvard Bridge (also known as the Massachusetts Avenue Bridge).[6] 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 at the Boston University Bridge.[7] This was where US 3 met US 1 until that highway was re-routed 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 intersectionsEdit

Although MassDOT inventories Massachusetts 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.

StateCountyLocation[1][8]mi[9][1][8]kmExitDestinationsNotes
MassachusettsMiddlesexCambridge0.0000.000   Route 2A east (Massachusetts Avenue south) / Route 3 south (Memorial Drive) – BostonDiamond interchange; southern terminus of US 3; northern terminus of Route 3; no direct access from US 3 to westbound Route 2A
1.0471.685  Route 2 east (Boston University Bridge) – BostonRoundabout interchange; south end of concurrency with Route 2
3.9756.397  Route 16 west (Huron Avenue) – Watertown, West NewtonSouth end of concurrency with Route 16
5.4448.761  Route 2 west (Concord Turnpike) – Arlington, ConcordNorth end of concurrency with Route 2
5.8209.366   Route 16 / Route 2A east (Massachusetts Avenue) / Alewife Brook Parkway north – Medford, BostonNorth end of concurrency with Route 16; south end of concurrency with Route 2A
Arlington7.19811.584  Route 60 west (Pleasant Street) – Belmont, WalthamSouth end of concurrency with Route 60
7.28311.721  Route 60 east (Chestnut Street) – Medford, RevereNorth end of concurrency with Route 60
7.45712.001  Route 2A west (Summer Street) / Mystic Valley Parkway east – Lexington, ConcordNorth end of concurrency with Route 2A
Burlington13.44221.633   I‑95 north (Route 128 north) / Route 3A north (Cambridge Street) – Burlington, Portsmouth, NHInterchange; south end of concurrency with I-95/Route 128; I-95 exit 33A
14.86623.925  I‑95 south (Route 128 south)I-95 north exit 32A; north end of concurrency with I-95/Route 128; US 3 follows I-95 C/D lanes
32BMiddlesex Turnpike – BurlingtonShared exit with I-95 C/D lanes
25B  I‑95 south (Route 128 south) – Providence RII-95 exit 32A
Bedford17.64628.39826  Route 62 (Burlington Road) – Burlington, Bedford
Billerica21.16734.06527Concord Road – Billerica, Bedford
22.59136.35728Treble Cove Road – North Billerica, Carlisle
Chelmsford24.69139.73629  Route 129 (Billerica Road) – Billerica, Chelmsford
25.554–
26.108
41.125–
42.017
30  I‑495 (Blue Star Memorial Highway) / Lowell Connector north – Lawrence, MarlboroI-495 exit 35; split into exits 30A (I-495 north), 30B (Lowell Connector), and 30C (I-495 south) northbound; split into exits 30A (I-495 north) and 30B (I-495 south) southbound; indirect southbound access to Lowell Connector via exit 30A
26.57142.76231  Route 110 (Chelmsford Street) – Lowell, Chelmsford
28.76246.28832  Route 4 (North Road) – North Chelmsford, Chelmsford
30.81949.59833  Route 40 (Groton Road) – Westford, North Chelmsford
Tyngsborough33.02953.15534Westford Road – Tyngsborough, Westford
34.64455.75435  Route 113 (Kendall Road) – Dunstable, Tyngsborough
Massachusetts
New Hampshire line
Middlesex
Hillsborough county line
Tyngsborough
Nashua line
36.104
0.000
58.104
0.000
36Middlesex Road – South Nashua NHNo southbound exit; northbound entrance extends into New Hampshire, where it merges with exit 1
South end of Everett Turnpike
New HampshireHillsboroughNashua0.8341.3421Spit Brook Road – South Nashua
1.5532.4992   To NH 3A / NH 111 / Daniel Webster Highway – HudsonAccess via the Circumferential Highway; signed as exit 1A northbound
2.8194.5373Daniel Webster Highway – South NashuaSouthbound left exit and northbound entrance
3.0554.9174East Dunstable RoadFAA Center signage was removed at the request of the FAA shortly after 9/11
4.7247.6035   NH 111 to NH 111A – Nashua, Hudson, Pepperell MASigned as Exits 5E (east) and 5W (west)
5.0598.1425ASimon StreetNorthbound exit only, formerly exit 5EA
6.28510.1156  NH 130 (Broad Street) – Nashua, Hollis
6.78110.913   Everett Turnpike north / NH 101A – Nashua, Amherst, MilfordExit 7 on Everett Turnpike; northern end of concurrency with the Everett Turnpike
Merrimack10.83217.432  Industrial Drive to Everett TurnpikeExit 10 on Everett Tpke.
12.10919.488  Greeley Street to Everett TurnpikeExit 11 on Everett Tpke.
15.74525.339  Bedford Road to Everett Turnpike southExit 12 on Everett Tpke.
Bedford17.874–
18.148
28.765–
29.206
   Wieczorek Drive to Manchester Airport;    To US 3 / NH 3A / S. River Road – LitchfieldExit 13 on Everett Tpke.
20.90033.635     NH 101 to I‑293 / Everett Turnpike – Boston, Concord, Manchester AirportSouthbound exit to and entrance from NH 101 east via Meetinghouse Road
21.33134.329  Kilton Road to NH 101 west – Bedford
Manchester22.69036.516    NH 114A west / I‑293 / NH 3A north – Concord, BostonExit 4 on I-293; eastern terminus of NH 114A; southern terminus of wrong-way concurrency with NH 3A
23.33337.551  NH 3A south (South Elm Street)Northern end of wrong-way concurrency with NH 3A
25.97441.801  NH 28 south (Beech / Maple Streets)Southern end of concurrency with NH 28
MerrimackHooksett26.998–
27.591
43.449–
44.403
   I‑93 to NH 101 – Salem, ConcordExit 9 on I-93
28.58646.005  NH 28A south – LondonderryNorthern terminus of NH 28A
29.08246.803  NH 27 east – Candia, RaymondWestern terminus of NH 27
29.57847.601  NH 28 Bypass south – DerryNorthern terminus of NH 28 Bypass
Allenstown35.23756.708  NH 28 north – Epsom, AltonNorthern end of concurrency with NH 28
Pembroke39.50663.579  NH 106 north – Loudon, LaconiaSouthern terminus of NH 106
Concord41.70467.116Korean Veterans Memorial Bridge over the Merrimack River
41.775–
41.933
67.230–
67.485
    I‑93 to I‑89 / I‑393 – Manchester, Lebanon, Plymouth, PortsmouthExit 13 on I-93
42.17367.871  NH 3A south (Main Street)Southern end of silent concurrency with NH 3A
42.72968.766    US 202 west / NH 9 west (Pleasant Street) to NH 13Southern end of concurrency with US 202 / NH 9
43.02469.240   NH 9 east (Loudon Road) to I‑93Northern end of concurrency with NH 9
43.41169.863   US 202 east to I‑393 eastNorthern end of concurrency with US 202
Boscawen50.81281.774  US 4 east – ConcordSouthern end of concurrency with US 4
52.16883.956  US 4 west – AndoverNorthern end of concurrency with US 4
Franklin60.64597.599  NH 127 south – SalisburySouthern end of concurrency with NH 127
61.30798.664   NH 3A north / NH 11 west – Andover, BristolNorthern end of concurrency with NH 3A; southern end of concurrency with NH 11
61.75599.385  NH 127 north – New HamptonNorthern end of concurrency with NH 127
BelknapTilton64.925104.487   NH 132 south to I‑93 south – Northfield, ConcordSouthern end of concurrency with NH 132
66.203–
66.586
106.543–
107.160
  I‑93 – Canterbury, Concord, Boston, New Hampton, Plymouth
  NH 140 east – Belmont, Gilmanton
Exit 20 on I-93; western terminus of NH 140
66.678107.308  NH 132 north – SanborntonNorthern end of concurrency with NH 132
Belmont72.845117.233  NH 11A – Laconia downtownWestern terminus of NH 11A
Laconia74.355119.663   NH 106 to NH 107 – Laconia, Belmont, ConcordPartial interchange; no southbound exit to NH 106 north; no northbound entrance from NH 106 south
74.999120.699  NH 107 – Laconia, GilmantonPartial interchange; southbound exit and northbound entrance
Gilford76.040122.375  NH 11A – Gilford, LaconiaInterchange
78.649126.573  NH 11 east – AltonNorthern end of concurrency with NH 11
GilfordLaconia line79.442127.850  NH 107 south – LaconiaNorthern terminus of NH 107
Laconia82.684133.067  NH 11B – Gilford, Alton BayNorthern terminus of NH 11B
Meredith86.334138.941  NH 106 – LaconiaNorthern terminus of NH 106
86.847139.767  NH 104 – New HamptonEastern terminus of NH 104
87.693141.128  NH 25 east – Center Harbor, Ossipee, ConwaySouthern end of concurrency with NH 25
Center Harbor90.778146.093  NH 25B – Center HarborWestern terminus of NH 25B
GraftonHolderness95.526153.734  NH 113 – SandwichSouthern terminus of NH 113
96.661155.561  NH 175 – CamptonSouthern terminus of NH 175
Ashland99.271159.761  NH 132 – New Hampton, TiltonNorthern terminus of NH 132
99.958–
100.339
160.867–
161.480
  I‑93 – Tilton, Concord, Plymouth, LittletonExit 24 on I-93
Plymouth105.397169.620   NH 175A to I‑93 – HoldernessWestern terminus of NH 175A
106.202170.916    NH 3A south / NH 25 west to I‑93 – Rumney, Bristol, Concord, LittletonInterchange; northern end of concurrency with NH 25; northern terminus of NH 3A
Campton109.525176.263  To I‑93 – Campton, Littleton, Plymouth, ConcordExit 27 on I-93 via Blair Road
112.375180.850   NH 49 to I‑93 – Campton, Waterville ValleyWestern terminus of NH 49
Thornton113.804–
114.101
183.150–
183.628
  I‑93 – Plymouth, Concord, Franconia, LittletonExit 29 on I-93
Woodstock120.410–
120.910
193.781–
194.586
  I‑93 – Franconia, Littleton, Plymouth, ConcordExit 30 on I-93
125.420201.844  NH 175 – CamptonNorthern terminus of NH 175
126.031202.827   NH 112 to I‑93 – Lincoln, Conway, Woodsville
Lincoln128.210–
128.394
206.334–
206.630
  I‑93 – Concord, LittletonExit 33 on I-93
131.562211.729  I‑93 southExit 34A on I-93; southern end of concurrency with I-93 and the Franconia Notch Parkway
Franconia135.923218.74734BCannon Mountain Tramway – Old Man Historic SiteExit numbers follow I-93
136.623219.87334C  NH 18 – Echo Lake Beach, Peabody Slopes, Cannon MountainSouthern terminus of NH 18
138.080222.218  I‑93 northExit 35 on I-93; northern end of concurrency with I-93 and the Franconia Notch Parkway
139.044223.770    NH 141 to I‑93 / NH 18 – FranconiaEastern terminus of NH 141
CoosCarroll148.497238.983  US 302 – Bethlehem, Bretton Woods, ConwayIn village of Twin Mountain
150.510242.222  NH 115 – Jefferson, Berlin, GorhamSouthern terminus of NH 115
Whitefield156.871252.459   NH 116 south / NH 142 south – Bethlehem, LittletonSouthern end of concurrency with NH 116 / NH 142
156.918252.535  NH 142 north – DaltonNorthern end of concurrency with NH 142
156.959252.601  NH 116 north – Jefferson, GorhamNorthern end of concurrency with NH 116
Lancaster165.330266.073  US 2 east – Jefferson, Gorham, BerlinSouthern end of concurrency with US 2
165.372266.140  NH 135 – Dalton, Gilman VTNorthern terminus of NH 135
166.126267.354  US 2 west – St. Johnsbury VTNorthern end of concurrency with US 2
Northumberland175.152281.880  NH 110 – Stark, BerlinWestern terminus of NH 110 in village of Groveton
North Stratford188.576303.484  To VT 105 – Bloomfield VT
Colebrook201.458324.215  NH 26 east – Dixville NotchSouthern end of concurrency with NH 26
201.565324.387  NH 26 westNorthern end of concurrency with NH 26
201.647324.519  NH 145 – ClarksvilleSouthern terminus of NH 145
Pittsburg219.573353.368  NH 145Northern terminus of NH 145
241.953389.386  Route 257Continuation into Quebec
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Special routesEdit

US 3 has one existing special route, a business route through Laconia, New Hampshire. Three other special routes may have existed in the past: a business route between Tyngsborough, Massachusetts, and Concord, New Hampshire, and bypass routes around Concord and Nashua, New Hampshire.

Laconia business loopEdit

 

 

U.S. Route 3 Business
Location Belmont, New HampshireLaconia, New Hampshire
Length 4.144 mi[1] (6.669 km)

U.S. Route 3 Business is a 4.144-mile-long (6.669 km)[1] long unsigned business route running north–south through downtown Laconia, New Hampshire. It runs from US 3 and New Hampshire Route 11 in Belmont north to US 3 in Laconia, along NH 107 and NH 11A. It is a former alignment of U.S. 3, used before the Laconia-Gilford bypass was built.

See alsoEdit

NotesEdit

ReferencesEdit

  1. ^ a b c d e Bureau of Planning & Community Assistance (February 20, 2015). "NH Public Roads". Concord, New Hampshire: New Hampshire Department of Transportation. Retrieved April 7, 2015.
  2. ^ a b c http://www.bostonroads.com/roads/northwest/
  3. ^ "Boston's Big Dig that never was" http://www.bettnet.com/bostons_big_dig_that_never_was/
  4. ^ "COMMBUYS Solicitation:FAP# HSIP-002S(874) Exit Signage Conversion to Milepost-Based Numbering System along Various Interstates, Routes and the Lowell Connector". Commonwealth of Massachusetts. Missing or empty |url= (help); |access-date= requires |url= (help)
  5. ^ Robert H. Malme (2017). "Massachusetts Interstate Highways Exit Lists". Retrieved January 18, 2017.
  6. ^ "Route Number Database". AASHTO. 2009. Retrieved October 14, 2015.
  7. ^ "U.S. Numbered Highways, 1989 Edition" (PDF). AASHTO. 1989. Retrieved October 14, 2015.
  8. ^ a b Bureau of Planning & Community Assistance (April 3, 2015). "Nodal Reference 2015, State of New Hampshire". New Hampshire Department of Transportation. Retrieved April 7, 2015.[permanent dead link]
  9. ^ Planning Division (2012). "Massachusetts Highway Route Log". Massachusetts Department of Transportation. Retrieved February 2, 2017.

External linksEdit