U.S. Route 4 in New Hampshire

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U.S. Route 4

US 4 highlighted in red
Route information
Maintained by NHDOT
Length106.834 mi[1] (171.933 km)
Major junctions
West end US 4 in White River Junction, VT
Major intersections
East end I-95 / Blue Star Turnpike / US 1 Byp. in Portsmouth
CountryUnited States
StateNew Hampshire
CountiesGrafton, Merrimack, Rockingham, Strafford
Highway system
NH 3B NH 4
NH 4NH Route 4A.svg NH 9

U.S. Route 4 (US 4) in the state of New Hampshire runs for 106.834 miles (171.933 km) across the central and southern part of the state, stretching from Lebanon on the Connecticut River border with Vermont southeast to Portsmouth on the eastern coast.

Route description

US 4 crosses the Connecticut River into New Hampshire in the community of West Lebanon, where it immediately intersects New Hampshire Route 10 (NH 10) which runs parallel to the river. US 4 turns south onto NH 10, and the two routes turn south, meeting NH 12A before turning toward and interchanging with Interstate 89 (I-89). At this point, NH 10 joins the I-89 freeway southbound, while US 4 continues east into downtown Lebanon. The road crosses NH 120, continues east, and interchanges with I-89/NH 10 again. US 4 continues east away from the freeway near Mascoma Lake, where NH 4A splits off to the southeast. US 4 continues east through Enfield and into Canaan, where it meets the southern end of NH 118. The road turns to the south at this point, passing through Grafton and Danbury, where US 4 meets the west end of NH 104 and continues south into Andover. In Andover, US 4 turns back to the east and meets NH 11 near NH 4A's eastern terminus. US 4 and NH 11 run concurrently through Andover for about two miles (3.2 km) before splitting, NH 11 to the northeast and US 4 to the southeast. US 4 enters the town of Salisbury and crosses NH 127, before continuing into Boscawen and intersecting with US 3. US 3 and US 4 share a short concurrency (about a mile [1.6 km]), before US 4 turns east to interchange with I-93 at Exit 17.

US 4 joins I-93 southbound and runs along the freeway until exit 15E in Concord. At this interchange, US 4 leaves I-93 and joins I-393 and US 202 which run eastbound out of the city. The two U.S. Routes overlap I-393 to its terminus in the northern corner of Pembroke. I-393 then ends, and US 4/US 202 merge onto NH 9 eastbound through Chichester and into Epsom. The road crosses NH 28 at the Epsom Traffic Circle, then continues east and intersects NH 107, forming a two-mile-long (3.2 km) four-route concurrency into Northwood, where NH 107 splits off to the northwest. US 4, US 202, and NH 9 continue through Northwood, and US 202 and NH 9 split from US 4 at an intersection with NH 43.

US 4 continues east, meeting the west end of NH 152 and proceeding into Nottingham and then into Lee, where US 4 meets NH 125 at a two-lane roundabout. After leaving this interchange, US 4 crosses into Durham and becomes a semi-limited-access highway. US 4 has a partial eastbound interchange with NH 155 and a diamond interchange with NH 155A down the road, providing access to the University of New Hampshire campus in Durham. US 4 has one more interchange, with NH 108, before becoming a full-access highway again. US 4 continues east toward the coast and crosses the tidal Bellamy River to enter Dover, then interchanges with the Spaulding Turnpike (NH 16). US 4 joins the turnpike southbound, closely paralleling the Maine state border and crossing the Little Bay Bridge into the town of Newington before continuing into the city of Portsmouth. US 4 terminates just south of the Maine state line at the final southbound interchange with I-95, where the turnpike splits to merge with I-95 south, and NH 16 continues south to end at the Portsmouth Traffic Circle, providing access to I-95 north and US 1 Bypass.


The section of US 4 from the Vermont state line to Andover (and NH 11 from Andover to Franklin) was first numbered in 1925 as an eastern extension of Route 14. From Franklin to Concord, the road was designated as Route 6 (now US 3), and, from Concord to Northwood, it was Route 9 (now NH 9). Between Northwood and Dover, the road was previously not numbered. From Dover to its eastern terminus at Portsmouth, the road used part of Route 16 (now NH 16).

Junction list

Exit numbers listed are those of the primary highway with which US 4 is concurrent.


US 4 west (Bridge Street) to US 5 / VT 14 – White River Junction
Continuation into Vermont
NH 10 north (North Main Street) – Hanover
Western end of concurrency with NH 10
NH 12A south (South Main Street)
Northern terminus of NH 12A
I-89 / NH 10 south – Enfield, Concord, Vermont
Exit 19 on I-89; eastern end of concurrency with NH 10
NH 120 (Hanover Street / School Street) – Hanover, Meriden, Claremont
6.0919.803 I-89 / NH 10 – Grantham, Concord, Lebanon, Hanover, VermontExit 17 on I-89 / NH 10
NH 4A south – Enfield Center, Andover
Northern terminus of NH 4A
NH 118 north (Dorchester Road) – Dorchester, Rumney
Southern terminus of NH 118
NH 104 east (Ragged Mountain Highway) – Bristol
Western terminus of NH 104
NH 11 west (Main Street) – New London
Western end of concurrency with NH 11
NH 11 east (Franklin Highway) – Franklin
Eastern end of concurrency with NH 11
Salisbury47.44276.350 NH 127 (South Road / Franklin Road) – Webster, Franklin
US 3 north (Daniel Webster Highway) – Franklin
Western end of concurrency with US 3
US 3 south (North Main Street) – Penacook
Eastern end of concurrency with US 3
I-93 north (Styles Bridges Highway) – Tilton, Plymouth
Hoit Road
To NH 132
Exit 17 on I-93; western end of concurrency with I-93
61.23398.54516 NH 132 (East Side Drive) – East ConcordVia West Portsmouth St.

I-93 south (Styles Bridges Highway) to I-89 – Manchester, Lebanon

I-393 east / US 202 to US 3 (North Main Street) – Downtown
Exit 15 on I-93; eastern end of concurrency with I-93
Western terminus of I-393; western end of concurrency with I-393 / US 202 concurrency
63.670102.4671Fort Eddy Road – NHTI Community College
63.965102.942Veterans Memorial Bridge over the Merrimack River
64.730104.1732 NH 132 (East Side Drive)
NH 106 (Sheep Davis Road) to NH 9 – Laconia, Pembroke

I-393 west / NH 9 west – Concord Hgts. Business District
Eastern terminus of I-393 and its concurrency with US 4; western end of concurrency with NH 9; westbound exit and eastbound entrance
Epsom73.088117.624 NH 28 (Suncook Valley Highway) – Pittsfield, AllenstownTraffic circle
NH 107 south – Deerfield, Raymond
Western end of concurrency with NH 107
NH 107 north (School Street) – Pittsfield
Eastern end of concurrency with NH 107

US 202 east / NH 9 east (Rochester Road) / NH 43 south (Mountain Avenue) – Dover, Rochester, Deerfield, Candia
Eastern end of concurrency with US 202 / NH 9; northern terminus of NH 43
NH 152 east (Nottingham Road) – Nottingham, Lee
Western terminus of NH 152
StraffordLee92.597149.020 NH 125 (Calef Highway) – Epping, Kingston, Manchester, Barrington, RochesterRoundabout
93.968151.227 NH 155 (Turtle Pond Road) – Lee, MadburyEastbound exit and westbound entrance
Durham95.292153.358 NH 155A (Main Street) – Durham, LeeInterchange
98.325158.239 NH 108 (Dover Road) – Durham, Dover, NewmarketInterchange

Spaulding Turnpike north / NH 16 north – Somersworth, Rochester, Conway
Exit 6 on Spaulding Turnpike; western end of concurrency with Spaulding Turnpike. Full-access interchange opened on Friday, 15 November 2019.[4]
RockinghamNewington103.67166.844Shattuck Way – Newington Village
104.20167.693Woodbury Avenue
NewingtonPortsmouth line105.325169.5041Gosling Road (Pease Tradeport; Portsmouth Intl. Airport)

I-95 / Spaulding Turnpike ends / NH 16 ends / US 1 Byp. – Hampton, Boston, Portsmouth, Maine Points
Portsmouth Circle; eastern terminus of US 4 and southern terminus of the Spaulding Turnpike / NH 16; I-95 Exits 4–5
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Special routes

Suffixed routes

New Hampshire Route 4A

Length23.955 mi[2] (38.552 km)
NH 4A entering Sullivan County

New Hampshire Route 4A (NH 4A) is a 24-mile-long (39 km) route between Lebanon and Andover, New Hampshire, serving as a shortcut around several villages on US 4. Until I-89 was built in the early 1970s, this was part of the main route between the Lebanon–Hanover area and the southeastern portion of New Hampshire. Today, traffic is very light on this road.

NH 4A is signed as a north–south highway, although its orientation is more southeast–northwest. The northern terminus is in Lebanon at US 4, near the western tip of Lake Mascoma. The southern terminus is in the town of Andover at NH 11, about 0.75 miles (1.21 km) southwest of its intersection with US 4. This highway is locally named the 4th New Hampshire Turnpike.

NH 4A is an alternate route of US 4, and not of NH 4, a completely different route located in Dover.

See also


  1. ^ NHDOT Route Log Application
  2. ^ a b c Bureau of Planning & Community Assistance (February 20, 2015). "NH Public Roads". Concord, New Hampshire: New Hampshire Department of Transportation. Retrieved April 7, 2015.
  3. ^ 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]
  4. ^ Briand, Paul (18 November 2019). "Spaulding Turnpike Dover-Durham access unveiled". Foster's Daily Democrat. Dover, New Hampshire. Retrieved 20 November 2019.

Further reading

External links

U.S. Route 4
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