New Hampshire Route 108

The highway proceeds due north, passing underneath I-495 less than 500 feet before crossing into Plaistow, New Hampshire, where it becomes NH 108.

The road crosses into Durham and Strafford County, passing through the center of town just east of the University of New Hampshire main campus, and then interchanging with US 4.

The three routes briefly run concurrently in the center of Dover, before NH 4 splits off towards South Berwick, Maine via Portland Avenue.

NH 108 serves as Somersworth's industrial strip, then continues north into Rochester.

[3] The designation for NH 108 was in use by 1927, essentially following its present-day route from the Massachusetts border to Dover.

Map of Massachusetts Route 108, a southward extension of NH 108 into Haverhill
Looking north on Route 108 in East Kingston
Route 108 at the traffic circle in Stratham , the western terminus of Route 33