List of Interstate Highways in New Hampshire

Interstate Highways of the New Hampshire Highway System
Highway marker for Interstates 93 and 293
Interstate Highways highlighted in red
System information
Formed	August 14, 1957
Highway names
Interstates	Interstate nn (I-nn)
System links
New Hampshire Highway System Interstate US State Turnpikes

The Interstate Highways in New Hampshire comprise three current primary Interstate Highways and two auxiliary Interstates. In addition, one auxiliary Interstate number has been decommissioned along with a lone business Interstate.

List


Number	Length (mi)	Length (km)	Southern or western terminus	Northern or eastern terminus	Formed	Removed	Notes
I-89	60.864	97.951	I-93 & NH 3A in Bow	I-89 at Hartford, VT	01967-01-011967	current	Highway continues north into Vermont.
I-89 BL	3.9	6.3	I-89 at Enfield	I-89 at Lebanon	01968-01-011968	02000-01-012000	From I-89 Exit 17 to Exit 19 along current US 4. Only one shield remained for the route in July 2000 and it was taken down by 2004. It was the only Interstate Business route in New Hampshire.
I-93	131.764	212.054	I-93 at Methuen, MA	I-93 at Waterford, VT	01957-01-011957	current	Partially tolled between Manchester and Concord as part of the Everett Turnpike. Continues south into Massachusetts and north in Vermont.
I-95	16.193	26.060	I-95 at Salisbury, MA	I-95 at Kittery, ME	01957-01-011957	current	Tolled as the New Hampshire Turnpike. Continues south into Massachusetts and north into Maine.
I-193	3.291	5.296	I-93/NH 101 in Manchester	Everett Tpk. in Bedford	01961-01-011961	01976-01-011976	Southern leg of what is now designated I-293.
I-293	11.771	18.944	I-93/NH 101 in Manchester	I-93/Everett Tpk. in Hooksett	01976-01-011976	current	Southern leg formerly designated I-193 (1961-1976).
I-393	4.594	7.393	US 202 in Concord	US 4/US 202/NH 9 in Pembroke	01979-01-011979	current	Concurrent with US 4/US 202 the entire length
Former