Forming a 340 mile long multi-state route with Maine 16, New Hampshire Route 16 travels north from Portsmouth to Dover, Rochester, Milton, Ossipee, Conway, Gorham and Errol to cross the state line at Wentworth Location. The route extends east to Rangeley and ultimately Orono, Maine. Origins of the route date back to the 1922 establishment of New England Interstate Route 16, with NH 16 overtaking that route north from Portsmouth to NH 26 at Errol.
A change made to NH 16 by the 1990s rerouted the southern extent between Dover and Rochester onto the tolled Spaulding Turnpike. The portion south from Dover to Portsmouth is also the eastern extent of U.S. 4. Before the turnpike was completed there in 1956, U.S. 4/NH 16 took Woodbury Avenue southward into Portsmouth.
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| Speed limits reduce to 35 MPH as NH 16 (White Mountain Highway) lowers to the signalized intersection with NH 153 (Wakefield Road) and 125 south. 07/29/07 |
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| NH 125 & 153 south combine for 0.3 miles to Main Street in Union. NH 153 branches southwest from there to Sunrise Lake and west Milton. 07/29/07 |
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| NH 153 travels 50.7 miles overall from Farmington north to nearby Sanbornville, the Wakefield town center, Province Lake, Effingham and NH 25 by the Freedom town line. 07/29/07 |
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| NH 109 intersects NH 16 (White Mountain Highway) on the west side of Sanbornville within the town of Wakefield. NH 16 bypasses the community to the west. 08/16/11 |
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| Governors Road arcs southeast from Brookfield to end at NH 16 (White Mountain Highway) ahead of this reassurance marker. 08/16/11 |
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| NH 153 and a parallel New Hampshire Northcoast Railroad line head south from Sanbornville to cross paths with NH 16 between Union Meadows and the settlement of Union. NH 125 commences a 52 mile route to Haverhill, Massachusetts alongside NH 153 (Wakefield Road) through Union. 08/16/11 |
Page Updated 02-20-2015.
