New Hampshire Route 108

New Hampshire Route 108
Map of southeastern New Hampshire and northeastern Massachusetts with NH 108 highlighted in solid red and with MA 108 highlighted in dotted red
Route information
Maintained by NHDOT
Length:	42.430 mi (68.284 km)
Major junctions
South end:	Route 110 in Haverhill, MA
	NH 101 in Exeter US 4 in Durham Spaulding Turnpike / NH 16 in Dover NH 4 / NH 9 in Dover
North end:	NH 125 / NH 202A in Rochester
Location
Counties:	Essex (MA), Rockingham, Strafford
Highway system
New Hampshire Highway System Interstate U.S. State Turnpikes ← NH 107A NH 109 → ← Route 107 MA Route 109 →

New Hampshire Route 108 (abbreviated NH 108) is a 42.430-mile-long (68.284 km) north–south state highway in Rockingham and Strafford counties in southeastern New Hampshire. The northern terminus of the route is in the city of Rochester at New Hampshire Route 125 and New Hampshire Route 202A. The southern terminus is at the Massachusetts state line in the town of Plaistow, where NH 108 continues south as the short Massachusetts Route 108 for 0.91 miles (1.46 km) to Massachusetts Route 110 in the city of Haverhill.

NH 108 is notable in being one of two routes (the other being New Hampshire Route 9) to intersect both U.S. Route 4 and New Hampshire Route 4 (a rare case of two completely separate routes in one state having the same number).

Route description

Plaistow to Exeter

Map of the short extension of Route 108 into Massachusetts

Looking north on Route 108 in East Kingston

NH 108 begins at the border between Haverhill, Massachusetts, and Plaistow, New Hampshire, as a continuation of Massachusetts Route 108, which passes under Interstate 495 just south of the state line before ending at Route 110, which heads east as Amesbury Road and west into downtown Haverhill as Kenoza Avenue. NH 108 passes through the town of Plaistow before crossing through Newton into East Kingston and crossing NH 107A. The route continues north, before turning eastward to form a brief wrong-way concurrency with NH 107, and turning back to the north. NH 108 next passes through the town of Kensington, where it meets the north end of NH 150 and then continues north into the town of Exeter. In Exeter, NH 108 meets NH 27, NH 111, and NH 111A, forming a very brief overlap with the former two routes. The route then meets the west end of NH 88 and then promptly interchanges with the NH 101 freeway at exit 11.

Stratham to Dover

NH 108 continues north into the town of Stratham where it meets NH 33, a connector to U.S. Route 1 in Portsmouth which also interchanges with Interstate 95. Continuing northward, NH 108 passes through the towns of Newfields and Newmarket, intersecting with NH 85 and NH 152. The road then crosses into Strafford County and into the town of Durham. NH 108 passes through the center of town, just east of the University of New Hampshire main campus, and then interchanges with U.S. Route 4. NH 108 passes through eastern Madbury with no route intersections, and then makes its way into the city of Dover.

Dover to Rochester

After crossing into Dover, NH 108 interchanges with the Spaulding Turnpike (NH 16) at exit 7. Shortly thereafter, the road comes to an intersection with NH 9 and NH 4, which begins here. The three routes briefly run concurrently in the center of Dover, before NH 4 splits off towards South Berwick, Maine via Portland Avenue. NH 9 and NH 108 continue north until NH 9 splits off towards Berwick, Maine, near an intersection with the Spaulding Turnpike at Exit 9 (via Indian Brook Road westbound). NH 108 continues north into the city limits of Somersworth, where it meets NH 236, a short connector to NH 9 bound for Berwick and, ultimately, Kittery, Maine. Continuing northbound, NH 108 roughly parallels the Spaulding Turnpike, crossing into Rochester, before ending at an intersection with NH 125 and NH 202A in the center of the city. From the northern end of NH 108, one may turn left or right onto Columbus Avenue (NH 125) or continue straight onto North Main Street (NH 202A).

Major intersections

County	Location	mi	km	Destinations	Notes
Essex	Haverhill	0.00	0.00	Route 110 (Amesbury Road / Kenoza Avenue) – Amesbury, Lawrence	Southern terminus
		0.91 0.000	1.46 0.000	Massachusetts–New Hampshire state line
Rockingham	East Kingston	8.023	12.912	NH 107A (Powwow River Road / Burnt Swamp Road) – Kingston, South Hampton
		9.191	14.791	NH 107 north (Depot Road) – Kingston	Southern end of wrong-way concurrency with NH 107
		10.077	16.217	NH 107 south (East Road) – Kensington, Seabrook	Northern end of wrong-way concurrency with NH 107
	Kensington	13.399	21.564	NH 150 (Amesbury Road) – Kensington, Amesbury MA	Northern terminus of NH 150
	Exeter	15.252	24.546	NH 111 west (Front Street)	Southern end of concurrency with NH 111
		15.336	24.681	NH 27 west / NH 111A (Water Street)	Southern end of concurrency with NH 27 Eastern terminus of NH 111A
		15.567	25.053	NH 27 east / NH 111 east (Front Street)	Northern end of concurrency with NH 27 / NH 111
		16.515	26.578	NH 88 (Holland Way) – Hampton Falls	Western terminus of NH 88
	Stratham	16.586– 16.824	26.693– 27.076	NH 101 (Exeter-Hampton Expressway) to I‑95 – Hampton, North Hampton, Epping, Manchester	Exit 11 on NH 101
		18.934	30.471	NH 33 (Portsmouth Avenue) – Greenland, Portsmouth	Western terminus of NH 33
	Newfields	20.615	33.177	NH 85 south (Main Street) to NH 87 – Newfields	Northern terminus of NH 85
	Newmarket	23.266	37.443	NH 152 (South Main Street) – Lee	Eastern terminus of NH 152
Strafford	Durham	27.997– 28.075	45.057– 45.182	US 4 (Piscataqua Road) – Concord, Portsmouth	Interchange
	Dover	31.382– 31.582	50.504– 50.826	Spaulding Turnpike / NH 16 – Portsmouth, Boston, Somersworth, Rochester	Exit 7 on Spaulding Turnpike
		32.189	51.803	NH 9 west (Silver Street) to NH 155	Southern end of concurrency with NH 9
		32.717	52.653	NH 4 east (Portland Avenue)	Western terminus of NH 4
		34.891	56.152	NH 9 east (Indian Brook Road) – Somersworth, Berwick ME Indian Brook Road to NH 16 / Spaulding Turnpike / Sixth Street	Northern end of concurrency with NH 9
	Somersworth	38.168	61.425	NH 236 (West High Street) – Somersworth, Berwick ME	Western terminus of NH 236
	Rochester	42.430	68.284	NH 125 (Columbus Avenue) NH 202A (North Main Street)	Northern terminus; eastern terminus of NH 202A
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus