 Although the route stretches for almost , NH 107 essentially exists as a series of smaller segments connected by short concurrencies with other routes.NH 107 between US 3 and Leavitt Road in Laconia is part of the Timberman 70.3 Triathlon bicycle course.NH 107 begins at US 1 in Seabrook, just north of the Massachusetts state line, and initially travels nearly due west (signed north).