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:	MA Route 3A in Tyngsborough, MA
	I-293/Everett Tpk. in Manchester Interstate 89 in Bow U.S. Route 3 in Concord US 3/NH 11/NH 127 in Franklin
North end:	I-93/US 3/NH 25 in Plymouth
Highway system
New Hampshire Routes ← 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.

County	Location	Mile	Destinations	Notes
Hillsborough	Hudson	0.00	Route 3A	Southern terminus of NH Route 3A. State line, continues south into Massachusetts.
			Circumferential Highway	To US-3/Everett Turnpike.
			NH Route 102 NH Route 111	Western terminus of NH Route 102; southern terminus of NH Route 3A/102 concurrency. To NH Route 101A, via Route 111 West.
			NH Route 102 East	Northern terminus of NH Route 3A/102 concurrency.
	Manchester		Interstate 293 NH Route 101	I-293 Exit 2.
			U.S. Route 3 North	Northern terminus of US-3/NH Route 3A concurrency.
			NH Route 114A	Eastern terminus of NH Route 114A.
			U.S. Route 3 South I-293/Everett Turnpike	Southern terminus of US-3/NH Route 3A concurrency. I-293 Exit 4; southern terminus of I-293/Everett Tpk./NH Route 3A concurrency.
		See Interstate 293 for concurrency with NH Route 3A, Exits 4-7.
			Interstate 293 Everett Turnpike	I-293 Exit 7; northern terminus of I-293/Everett Tpk./NH Route 3A concurrency. Partial interchange; northbound exit from/southbound entrance to I-293.
Merrimack	Hooksett		Interstate 93	I-93 Exit 10.
			Interstate 93 Everett Turnpike	I-93 Exit 11, access via Hackett Hill Road.
	Bow		Interstate 89	Southern terminus of Interstate 89. To Interstate 93/Everett Turnpike.
	Concord		Interstate 93 Everett Turnpike	I-93 Exits 12S-N.
		39.404	U.S. Route 3	Northern terminus of NH Route 3A (southern segment). To Interstate 93/Everett Turnpike, via US-3 South.
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

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.

County	Location	Mile	Destinations	Notes
Merrimack	Franklin	0.000	U.S. Route 3 NH Route 11 NH Route 127	Southern terminus of NH Route 3A (northern segment). Southern terminus of NH Route 3A/11 concurrency.
			NH Route 11 West	Northern terminus of NH Route 3A/11 concurrency.
Grafton	Bristol		NH Route 104 East	Eastern terminus of NH Route 3A/104 concurrency.
			NH Route 104 West	Western terminus of NH Route 3A/104 concurrency.
	Plymouth		NH Route 25 West	Western terminus of NH Route 3A/25 concurrency.
			U.S. Route 3 NH Route 25 East	Eastern terminus of NH Route 3A/25 concurrency. Interchange.
		30.934	Interstate 93	Northern terminus of NH Route 3A. I-93 Exit 26.
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

External links

Southern segment

• Map of southern terminus
• Map of northern terminus

Northern segment

• Map of southern terminus
• Map of northern terminus