New Hampshire Route 108

New Hampshire Route 108 is a 42.430-mile-long (68.284 km) north–south state highway in Rockingham and Strafford counties in southeastern New Hampshire. The southern terminus of NH 108 is at the Massachusetts state line in Plaistow. The northern terminus is at an intersection with New Hampshire Route 125 and New Hampshire Route 202A in downtown Rochester.

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
Length42.430 mi[1] (68.284 km)
Major junctions
South end Route 110 in Haverhill, MA
 
North end NH 125 / NH 202A in Rochester
Location
CountiesEssex (MA), Rockingham, Strafford
Highway system
← NH 107A→ NH 109
← Route 107MA→ Route 109

At its southern end, NH 108 connects to Massachusetts Route 108, a very short state route which continues south for 0.91 miles (1.46 km) to Massachusetts Route 110 in Haverhill.[2]

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

Massachusetts Route 108

Route 108 begins at an intersection with Route 110 north of downtown Haverhill, Massachusetts, near Kenoza Lake. The highway proceeds due north, passing underneath I-495 before crossing into Plaistow, New Hampshire, where it becomes NH 108.

Map of Massachusetts Route 108, a southward extension of NH 108 into Haverhill

Plaistow to Exeter
Looking north on Route 108 in East Kingston

NH 108 runs along the eastern edge of Plaistow, near the Massachusetts border, before crossing through Newton into East Kingston, where it crosses NH 107A, then turns eastward to form a brief wrong-way concurrency with NH 107. Continuing north, NH 108 passes through Kensington, where it meets the north end of NH 150 and continues north into Exeter. In Exeter, NH 108 meets NH 27, NH 111 and NH 111A, forming a very brief overlap with the former two routes. NH 108 meets the western end of NH 88, then interchanges with the NH 101 freeway at exit 11.

Stratham to Dover
Route 108 at the traffic circle in Stratham, the western terminus of Route 33

NH 108 crosses into Stratham where it meets NH 33, a connector to US 1 in Portsmouth which also interchanges with I-95, at a traffic circle. Continuing northward, NH 108 passes through Newfields and Newmarket, intersecting with NH 85 and NH 152 along the way. The road crosses into Durham and Strafford County, passing through the center of town just east of the University of New Hampshire main campus, and then interchanging with US 4. NH 108 continues through eastern Madbury and into the city of Dover.

Dover to Rochester

NH 108 interchanges with the Spaulding Turnpike (NH 16) at exit 7, becoming Central Avenue, the main road in downtown Dover. The road intersects NH 9 and NH 4 at Silver Street. NH 4 has its western terminus 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 Drive). NH 108 continues north into the city limits of Somersworth, where it meets NH 236, a short connector to NH 9 bound for Berwick. NH 108 serves as Somersworth's industrial strip, then continues north into Rochester. NH 108 terminates at the intersection of South Main Street and Columbus Avenue (NH 125), a terminus it shares with NH 202A. South Main Street continues into downtown as NH 202A westbound.

The Dover to Rochester section of NH 108 is scheduled for a $11.36 million improvement project, to begin in 2022, "to improve safety and mobility for drivers, pedestrians, bikers and transit users," according to NHDOT.[3]

Major intersections
CountyLocation[1][4]mi[1][4]kmDestinationsNotes
EssexHaverhill0.000.00 Route 110 (Amesbury Road / Kenoza Avenue) – Amesbury, LawrenceSouthern terminus
 0.91
0.000		1.46
0.000		Massachusetts–New Hampshire state line
RockinghamEast Kingston8.02312.912 NH 107A (Powwow River Road / Burnt Swamp Road) – Kingston, South Hampton
9.19114.791 NH 107 north (Depot Road) – KingstonSouthern end of wrong-way concurrency with NH 107
10.07716.217 NH 107 south (East Road) – Kensington, SeabrookNorthern end of wrong-way concurrency with NH 107
Kensington13.39921.564 NH 150 south (Amesbury Road) – Kensington, Amesbury MANorthern terminus of NH 150
Exeter15.25224.546 NH 111 west (Front Street) – KingstonSouthern end of concurrency with NH 111
15.33624.681 NH 27 / NH 111A west (Water Street) – Brentwood, EppingSouthern end of concurrency with NH 27
eastern terminus of NH 111A
15.56725.053 NH 27 / NH 111 east (High Street) – Hampton, North HamptonNorthern end of concurrency with NH 27 / NH 111
16.51526.578 NH 88 east (Holland Way) – Hampton FallsWestern terminus of NH 88
Stratham16.586–
16.824		26.693–
27.076		 NH 101 (Exeter-Hampton Expressway) to I-95 – Hampton, North Hampton, Epping, ManchesterExit 11 on NH 101
18.93430.471 NH 33 east (Portsmouth Avenue) – Greenland, PortsmouthWestern terminus of NH 33
Newfields20.61533.177 NH 85 south (Main Street) to NH 87 – NewfieldsNorthern terminus of NH 85
Newmarket23.26637.443 NH 152 west (South Main Street) – LeeEastern terminus of NH 152
StraffordDurham27.997–
28.075		45.057–
45.182		 US 4 (Piscataqua Road) – Concord, PortsmouthInterchange
Dover31.382–
31.582		50.504–
50.826		 Spaulding Turnpike / NH 16 – Portsmouth, Boston, Somersworth, RochesterExit 7 on Spaulding Turnpike
32.18951.803 NH 9 west (Silver Street) to NH 155 – Madbury
NH 4		Western terminus of NH 4; southern end of concurrency with NH 9
32.71752.653 NH 4 east (Portland Avenue) – Rollinsford, South Berwick MENorthern end of concurrency with NH 4
34.89156.152 NH 9 east (Indian Brook Drive) – Somersworth, Berwick ME
Indian Brook Drive to NH 16 / Spaulding Turnpike / Sixth Street		Northern end of concurrency with NH 9
Somersworth38.16861.425 NH 236 east (West High Street) – Somersworth, Berwick MEWestern terminus of NH 236
Rochester42.43068.284 NH 125 (Columbus Avenue) – Gonic, Milton
NH 202A west (South Main Street)		Northern terminus; eastern terminus of NH 202A
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

History

The designation for NH 108 was in use by 1927, essentially following its present-day route from the Massachusetts border to Dover.[5]

Until the early 1990s, NH 108 ended in Dover at an intersection with NH 16 (locally, at the Central Avenue intersection with Stark Avenue / Dover Point Road). When NHDOT rerouted NH 16 onto the Spaulding Turnpike as a concurrency, the section of NH 16 from the noted intersection in Dover to NH 125 in Rochester became a northward extension of NH 108.

See also: New Hampshire Route 16 § History

References
  1. Bureau of Planning & Community Assistance (February 20, 2015). "NH Public Roads". Concord, New Hampshire: New Hampshire Department of Transportation. Retrieved April 7, 2015.
  2. MassDOT (2009). "Road Inventory Downloads". Archived from the original on September 27, 2006. Retrieved March 25, 2011.
  3. Stucker, Kyle (March 1, 2019). "Route 108 upgrades in works in Tri-Cities". Foster's Daily Democrat. Dover, New Hampshire. Retrieved March 2, 2019.
  4. Bureau of Planning & Community Assistance (April 3, 2015). "Nodal Reference 2015, State of New Hampshire". New Hampshire Department of Transportation. Retrieved April 7, 2015.
  5. "Highway traffic survey of the state of New Hampshire : motor vehicle traffic on the state highway system with traffic classification and population distribution". Library of Congress. United States Geological Survey. 1927. Retrieved July 12, 2020 – via loc.gov.
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