New Hampshire Route 3A

New Hampshire Route 3A
Route information
Auxiliary route of US 3
Maintained by NHDOT
Length	70.34 mi (113.20 km) Southern segment: 39.404 miles Northern segment: 30.934 miles
Major junctions
South end	Route 3A in Tyngsborough, MA
Major intersections	I-293 / Everett Turnpike in Manchester I-93 in Hooksett / Concord I-89 in Bow US 3 in Concord US 3 / NH 11 / NH 127 in Franklin
North end	I-93 / US 3 / NH 25 in Plymouth
Location
Country	United States
State	New Hampshire
Counties	Hillsborough, Merrimack, Grafton
Highway system
New Hampshire Highway System Interstate US State Turnpikes
← US 3 → NH 3B

Old style Route 3A shield, still seen widely throughout the state

New Hampshire Route 3A is a designation held by two separate state highways in New Hampshire. The two segments, although not directly connected, are linked by U.S. Route 3, from which they derive their route number.

Route description

Southern segment

The southern terminus of the 39.40-mile (63.41 km) long southern segment is at the Massachusetts state line in Hudson, where it continues as Route 3A. The northern terminus is in the city of Concord at US 3. This segment of NH 3A follows the Merrimack River for its entire length. The route begins in Hudson. intersecting the eastern end of the Circumferential Highway (which provides access to US 3 and the Everett Turnpike). NH 3A passes through downtown Hudson, where it intersects with NH 111 just across the river from downtown Nashua. NH 102 begins at this intersection and is cosigned with NH 3A for its first mile, before splitting off northeast towards Londonderry. NH 3A continues along the eastern banks of the river, through Litchfield and into the city of Manchester, where it crosses under I-293/NH 101 and follows a short surface alignment in the southwest section of town. NH 3A intersects with US 3 and is actually cosigned with it (in a wrong-way concurrency on Queen City Ave across the river, where the two routes intersect NH 114A at its eastern terminus. At this point, NH 3A leaves US 3 and merges onto I-293 northbound (which also carries the Everett Turnpike) at exit 4. NH 3A is concurrent with I-293 for three miles, departing at exit 7 and crossing into Hooksett. The highway immediately interchanges with I-93 (which it parallels for the remainder of its length) near the northern terminus of I-293, and continues north (now paralleling on the west side of the river). Hackett Hill Road provides another access point to I-93, while nearby Main Street connects to US 3/NH 28 across the river. NH 3A enters Bow and meets the southern end of the I-89 freeway (another access point to I-93) before crossing into the city limits of Concord. The highway interchanges with I-93 one last time before ending at US 3 just south of downtown Concord.

Northern segment

The southern terminus of the 30.93-mile (49.78 km) long northern segment is in the city of Franklin at US 3, New Hampshire Route 11, and New Hampshire Route 127. The northern terminus is in the town of Plymouth at an interchange with Interstate 93, US 3 and New Hampshire Route 25.

Junction list

Southern segment

Note that NH-3A is unsigned along its concurrency with I-293 in Manchester.

County	Location	mi	km	Exit	Destinations	Notes
Hillsborough	Hudson	0.00	0.00		Route 3A (Frost Road)	Massachusetts state line.
		2.2	3.5		Circumferential Highway	To US 3/Everett Turnpike.
		5.0	8.0		NH 102 / NH 111 (Ferry Street) – Nashua	Western terminus of NH 102. To NH 101A.
		6.0	9.7		NH 102 east (Derry Road) – Derry	Northern terminus of NH 3A/102 concurrency.
	Litchfield			No major junctions.
	Manchester	19.3	31.1		I-293 / NH 101 – Salem, Concord, Portsmouth	I-293 Exit 2.
		21.3	34.3			US 3 north (Elm Street)	Northern terminus of US 3/NH 3A concurrency.
		21.9	35.2	4	US 3 south (Second Street) / NH 114A I-293 / Everett Turnpike – Concord, Boston	Southern terminus of US 3/NH 3A concurrency. I-293 Exit 4; southern terminus of I-293/NH 3A concurrency. Eastern terminus of NH 114A.
		22.7	36.5	5	Granite Street	I-293 Exit 5.
		24.1	38.8	6	Amoskeag Bridge/Goffstown Road	I-293 Exit 6.
		24.9	40.1	7	I-293 / Everett Turnpike	I-293 Exit 7; northern terminus of I-293/NH 3A concurrency. Northbound exit/southbound entrance only.
Merrimack	Hooksett	27.5	44.3		I-93 – Boston, Concord, Plymouth*	I-93 Exit 10. To I-293/Everett Turnpike.
		30.9	49.7		To I-93 – Concord, Manchester*	I-93 Exit 11, access via Hackett Hill Road.
	Bow	37.6	60.5		I-89 – Lebanon	Southern terminus of I-89. To I-93*.
	Concord	38.2	61.5		I-93 – Tilton, Plymouth, Manchester*	I-93 Exits 12S-N.
		39.404	63.415		US 3 (Water Street/South Main Street)	To I-93 / I-393 / US 202 / NH 9.
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access

*The Everett Turnpike is unsigned along I-93 from the I-293 interchange to its northern terminus in Concord at exit 14

Northern segment

County	Location	mi	km	Destinations	Notes
Merrimack	Franklin	0.000	0.000	US 3 (South Main Street) / NH 127 south	Southern terminus of NH 3A (northern segment). Southern terminus of NH 3A/11 concurrency.
		1.0	1.6	NH 11 west (Webster Lake Road) – Andover	Northern terminus of NH Route 3A/11 concurrency.
	Hill			No major junctions.
Grafton	Bristol	13.1	21.1	NH 104 east (Summer Street) – New Hampton	Eastern terminus of NH 3A/104 concurrency.
		13.3	21.4	NH 104 west (Pleasant Street) – Danbury	Western terminus of NH 3A/104 concurrency.
	Bridgewater			No major junctions.
	Plymouth	27.0	43.5	NH 25 west – Rumney, Woodsville	Western terminus of NH 3A/25 concurrency.
		30.8	49.6	US 3 / NH 25 east (Main Street) – Plymouth	Interchange; eastern terminus of NH 3A/25 concurrency.
		30.934	49.783	I-93 (Styles Bridges Highway) – Littleton, Concord	Northern terminus. I-93 Exit 26.
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

External links

Southern segment

• Map of southern terminus
• Map of northern terminus

Northern segment

• Map of southern terminus
• Map of northern terminus