New Hampshire Route 10

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New Hampshire Route 10 marker

New Hampshire Route 10
Map of New Hampshire with NH 10 highlighted in red (this includes the section cosigned along US 302)
Route information
Maintained by NHDOT
Length: 122.476 mi[1] (197.106 km)
Existed: 1922 – present
Major junctions
South end: Route 10 in Northfield, MA
North end: US 302 in Haverhill
Counties: Cheshire, Sullivan, Grafton
Highway system
NH 9A NH 10A

New Hampshire Route 10 is a 122.25-mile-long (196.74 km) north–south state highway in western New Hampshire, United States. Its southern terminus is in Winchester at the Massachusetts state line, where it continues south as Massachusetts Route 10. Administratively, the northern terminus is at a junction with U.S. Route 302 in Haverhill.

In the field, however, NH 10 is cosigned along US 302 for an additional 19.8 miles (31.9 km) from Haverhill to an intersection with New Hampshire Route 18 in Littleton. However, this is not officially part of the route.

NH 10 is a multi-state route along with Massachusetts Route 10 and Connecticut Route 10. Its number is derived from its original 1922 designation as New England Interstate Route 10.

Route description[edit]

Winchester to Keene[edit]

NH 10 begins at the Massachusetts state line in Winchester, where it connects to Massachusetts Route 10. It runs northeast into the town center where it intersects with NH 78 and NH 119. NH 119 joins NH 10 briefly before splitting off to the east. NH 10 continues north along the Ashuelot River, through the town of Swanzey and into the city of Keene. NH 10 meets NH 12 and NH 101 at a traffic circle near Keene State College and turns west, joining the latter two routes to their intersection with NH 9. At this intersection, NH 101 ends while NH 10 and NH 12 turn north onto NH 9 eastbound. The three overlapped routes pass west of downtown Keene for just over 12 mile (0.80 km), then NH 9 and NH 10 exit NH 12 at a trumpet interchange and turn northeast. NH 9 and NH 10 remain overlapped for another 2.8 miles (4.5 km) before NH 10 splits off to the north and crosses into the town of Gilsum.

Gilsum to Lebanon[edit]

NH 10 passes through Gilsum with no major junctions, then enters Marlow, where it has a 1.0-mile (1.6 km) overlap with NH 123. Continuing north, NH 10 meets the eastern terminus of NH 123A then crosses into Lempster. The highway has no major junctions in Lempster and continues north into Goshen where it intersects the northern terminus of NH 31. NH 10 continues into the town of Newport, where it shares a brief concurrency with NH 11 and NH 103 in the town center. The highway continues through Croydon with no major junctions, then into Grantham where it intersects with the northern terminus of NH 114 before interchanging with Interstate 89.

NH 10 joins I-89 at exit 13 and runs along the Interstate highway for 14.7 miles (23.7 km), through the southwest corner of the town of Enfield and into Lebanon, where it leaves I-89 at exit 19.

Lebanon to Haverhill[edit]

NH 10 exits I-89 onto U.S. Route 4, which it immediately joins westbound. US 4 and NH 10 cross the Mascoma River into the village of West Lebanon, where they intersect with NH 12A (providing local access to I-89). Just over 14 mile (0.40 km) to the north, US 4 splits off to cross the Connecticut River into White River Junction, Vermont. Now running along the eastern bank of the river, NH 10 continues north into the town of Hanover. At Dartmouth College in the heart of town, NH 10 meets its only child route, NH 10A, a connector to I-91 and US 5 in Norwich, Vermont, then intersects the northern terminus of NH 120 (NH 120 is cosigned with NH 10 on North Park Street, but does not appear to be officially part of that route). NH 10 continues north into the town of Lyme, where the only intersection of note is to East Thetford Road, a connector to Thetford, Vermont, which becomes Vermont Route 113 upon crossing the border to the west. Crossing into Orford, NH 10 intersects and briefly overlaps NH 25A before that route splits off to cross into Fairlee, Vermont, and meet US 5. NH 10 continues into Piermont and intersects with NH 25 (connecting to VT 25 just to the west) and NH 25C. NH 25 turns onto NH 10 northbound, and the two routes are cosigned for 5.3 miles (8.5 km) into the neighboring town of Haverhill. After crossing the town line, NH 25 splits off to begin its eastward trek across the state. NH 10 continues north along the Connecticut River and intersects the western terminus of NH 116 in the village of North Haverhill. Several miles to the north, NH 10 intersects the southern terminus of NH 135 and enters the village of Woodsville, where it reaches US 302, which crosses into Wells River, Vermont, just to the west.

NH 10 officially ends at US 302, but is cosigned with it through Bath, Landaff, Lisbon and into Littleton to its intersection with NH 18, just north of I-93.


NH 10 was first designated in 1922 as part of the New England road marking system. The original New England Interstate Route 10 extended from Route 1 (now U.S. Route 1) in New Haven, Connecticut, to Route 18 (now US 302 / NH 18) in Littleton, New Hampshire.

When the U.S. Highway system was introduced in 1926, it supplanted the New England route system and the entirety of existing Route 10 was redesignated as state highways. Around the same time, the newly designated U.S. Route 302 was assigned to the existing route between Haverhill and Littleton, effectively making the northernmost part of NH 10's routing redundant. As a result, NH 10 was eventually truncated back to the junction with US 302 in Haverhill, but for historical reasons it seems the state decided to post NH 10 signage along the former route.

NH 10 as signed today retains most of its original 1922 alignment. The one major exception to this is the routing of NH 10 along I-89 between Grantham and Lebanon. Many segments of the former surface alignment are still in use, with several labeled as "Old Route 10."

Major intersections[edit]

County Location[1][2] mi[1][2] km Destinations Notes
Cheshire Winchester 0.000 0.000 Route 10 south (Wanamaker Road) to Route 63 – Northfield, MA, Greenfield, MA Continuation into Massachusetts
4.409 7.096 NH 119 west (Hinsdale Road) – Hinsdale, Brattleboro, VT
NH 78 south (Warwick Road) – Warwick, MA
Southern end of concurrency with NH 119; northern terminus of NH 78
4.958 7.979 NH 119 east (Richmond Road) – Richmond, Fitzwilliam Northern end of NH 119 concurrency
Keene 16.757 26.968 NH 12 south / NH 101 east – Keene, Peterborough Southern end of concurrency with NH 12 / NH 101
17.280 27.809 NH 9 west (Franklin Pierce Highway) – Chesterfield, Brattleboro, VT
NH 101
Southern end of concurrency with NH 9; western terminus of NH 101
18.025 29.008 West Street – Keene Interchange
18.480 29.741 NH 12 north to NH 12A – Walpole, Surry Northern end of concurrency with NH 12
21.222 34.153 NH 9 east (Franklin Pierce Highway) – Hillsborough, Concord Northern end of NH 9 concurrency
Marlow 32.645 52.537 NH 123 south – Stoddard, Hancock Southern end of concurrency with NH 123
33.659 54.169 NH 123 north (Forest Road) – Alstead, Walpole Northern end of concurrency with NH 123
38.035 61.211 NH 123A west – Acworth Eastern terminus of NH 123A
Sullivan Goshen 47.631 76.655 NH 31 south – Washington, Hillsborough Northern terminus of NH 31
Newport 52.926 85.176 NH 11 / NH 103 west (Elm Street) – Claremont Southern end of concurrency with NH 11 / NH 103
53.157 85.548 NH 11 / NH 103 east (Sunapee Street) – Sunapee Northern end of concurrency with NH 11 / NH 103
Grantham 63.391 102.018 NH 114 south (Grantham Road) – Springfield Northern terminus of NH 114
64.528 103.848 I‑89 south – Concord Exit 13 on I-89; southern end of concurrency with I-89
69.112 111.225 North Grantham (via Old Route 10) Exit 14 on I-89; southbound exit and northbound entrance
Grafton Enfield 71.468 115.017 Smith Pond Road / Old Route 10 Exit 15 on I-89
72.891 117.307 Eastman Hill Road – Purmort Exit 16 on I-89
Lebanon 75.220 121.055 US 4 – Enfield, Canaan Exit 17 on I-89
77.110 124.097 NH 120 – Lebanon, Hanover Exit 18 on I-89
79.209 127.475 I‑89 north – Vermont
US 4 east – Lebanon
Northern end of concurrency with I-89 Exit 19; southern end of concurrency with US 4
81.140 130.582 NH 12A south (South Main Street) to I‑89 – Plainfield Northern terminus of NH 12A
81.475 131.121 US 4 west (Maple Street) to US 5 / VT 14 / I-91 – White River Junction, VT Northern end of concurrency with US 4
Hanover 85.373 137.395 NH 10A west (West Wheelock Street) to I-91 / US 5 – Norwich, VT Eastern terminus of NH 10A
85.742 137.988 NH 120 south (South Park Street) – Lebanon, Plainfield Northern terminus of NH 120
Orford 102.918 165.630 NH 25A east – Wentworth Southern end of concurrency with NH 25A
103.262 166.184 NH 25A west (Bridge Street) to US 5 / I-91 – Fairlee, VT Northern end of concurrency with NH 25A
Piermont 109.078 175.544 NH 25 west – Bradford, VT
NH 25C east (Lake Tarleton Road) – Warren
Southern end of concurrency with NH 25; western terminus of NH 25C
Haverhill 114.395 184.101 NH 25 east (Mt. Moosilauke Highway) – Warren, Plymouth Northern end of concurrency with NH 25
118.272 190.340 NH 116 north (Benton Road) – Benton, Easton Southern terminus of NH 116
121.518 195.564 NH 135 north (South Court Street) to US 302 west – Monroe, Newbury, VT Southern terminus of NH 135
122.476 197.106 US 302 (Central Street) – Woodsville, Bath, Littleton Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Related routes[edit]

NH 10A is an east–west highway in Hanover. It is known as the shortest state highway in New Hampshire.

The eastern terminus of Route 10A is in the center of Hanover at the junction with NH-10, which is Main Street. The western terminus of NH-10A is on the bridge over the Connecticut River, which is the border with Vermont. The road continues into Vermont and becomes Main Street in the town of Norwich. Total length of NH-10A is approximately 0.6 mile (0.9 km). This road is locally named West Wheelock Road in Hanover.

See also[edit]


External links[edit]

KML is from Wikidata