List of Interstate Highways in New Hampshire

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.

Interstate Highways of the New Hampshire Highway System
Highway marker for Interstates 93 and 293
System information
FormedAugust 14, 1957[1]
Highway names
InterstatesInterstate nn (I-nn)
System links

List
Number Length (mi)[2] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-89 60.86497.951 I-93 & NH 3A in BowI-89 at Lebanon 01967-01-011967current Highway continues north into Vermont.
I‑89 BL 3.96.3 I-89 at EnfieldI-89 at Lebanon 01968-01-01196802000-01-012000 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-93 131.764212.054 I-93 at SalemI-93 at Littleton 01957-01-011957current Partially tolled between Manchester and Concord as part of the Everett Turnpike. Continues south into Massachusetts and north in Vermont.
I-95 16.19326.060 I-95 at SeabrookI-95 at Portsmouth 01957-01-011957current Tolled as the New Hampshire Turnpike. Continues south into Massachusetts and north into Maine.
I-193 3.2915.296 I-93/NH 101 in ManchesterEverett Tpk. in Bedford 01961-01-01196101976-01-011976 Southern leg of what is now designated I-293.
I-293 11.77118.944 I-93/NH 101 in ManchesterI-93/Everett Tpk. in Hooksett 01976-01-011976current Southern leg formerly designated I-193 (1961-1976).
I-393 4.5947.393 US 202 in ConcordUS 4/US 202/NH 9 in Pembroke 01979-01-011979current Concurrent with US 4/US 202 the entire length
  •       Former

See also
  •  U.S. Roads portal

References
  1. Official Route Numbering for the National System of Interstate and Defense Highways (Map). American Association of State Highway Officials. August 14, 1957. Retrieved November 22, 2010.
  2. Bureau of Planning & Community Assistance (February 20, 2015). "NH Public Roads". Concord, New Hampshire: New Hampshire Department of Transportation. Retrieved April 7, 2015.
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