New Hampshire Route 120
Map of western New Hampshire with NH 120 highlighted in red
Route information
Maintained by NHDOT
Length	26.928 mi[1] (43.336 km)
Major junctions
South end	NH 11 / NH 103 in Claremont
North end	NH 10 in Hanover
Location
Country	United States
State	New Hampshire
Counties	Sullivan, Grafton
Highway system
New Hampshire Highway System Interstate US State Turnpikes
← NH 119 → NH 121

New Hampshire Route 120 is a 26.928-mile-long (43.336 km) secondary north–south state highway in Sullivan and Grafton counties in the upper Connecticut River Valley region of New Hampshire. Its southern terminus is at New Hampshire Route 11 and New Hampshire Route 103 in Claremont. Its northern terminus is at New Hampshire Route 10 in Hanover.

Route description

NH 120 begins in downtown Claremont on the Sugar River at NH 11 / NH 103. The initial stretch of the highway is on North Street but then it turns onto Hanover Street and heads north, passing through the towns of Cornish and Plainfield with no major junctions. NH 120 enters Lebanon and proceeds directly into the heart of the city, where it meets (and briefly overlaps) U.S. Route 4 at a large roundabout. NH 120 turns north again, interchanging with Interstate 89 / NH 10, and continues out of town. NH 120 then crosses into Hanover and proceeds northwest into the center of town where it terminates at NH 10 near Dartmouth College.

NH 120 is cosigned with NH 10 on North Park Street in Hanover to terminate at Lyme Road/College Street, but this does not appear to be part of the official routing.

Major intersections

County	Location[1][2]	mi[1][2]	km	Destinations	Notes
Sullivan	Claremont	0.000	0.000	NH 11 / NH 103 (Broad Street / Washington Street) to NH 12 – Newport, Charlestown, Walpole	Southern terminus
Grafton	Lebanon	21.267	34.226	US 4 east (Bank Street) – Enfield, Canaan	Southern end of concurrency with US 4
		21.500	34.601	US 4 west (Mechanic Street) – West Lebanon	Northern end of concurrency with US 4
		22.109– 22.291	35.581– 35.874	I-89 / NH 10 – Enfield, Concord, West Lebanon, Vermont	Exit 18 on I-89
	Hanover	26.928	43.336	NH 10 (East Wheelock Street / North Park Street) to NH 10A – Lyme, Norwich VT	Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus