New Hampshire Route 3A

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New Hampshire Route 3A marker

New Hampshire Route 3A
Route information
Auxiliary route of US 3
Maintained by NHDOT
Southern segment
Length: 39.412 mi[1] (63.427 km)
South end: Route 3A in Tyngsborough, MA
Major
junctions:
North end: US 3 in Concord
Northern segment
Length: 31.015 mi[1] (49.914 km)
South end: US 3 / NH 11 / NH 127 in Franklin
Major
junctions:
US 3 / NH 25 in Plymouth
North end: I‑93 in Plymouth
Location
Counties: Hillsborough, Merrimack, Grafton
Highway system
US 3 NH 4
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[edit]

Southern segment[edit]

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 Massachusetts 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 at the Massachusetts line. It shortly intersects with the eastern end of the Circumferential Highway (which provides access to US 3 and the Everett Turnpike). NH 3A passes through Hudson Village, the historic center of town, 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[edit]

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.

History[edit]

New England 6A.svg

From 1922 to 1926, Route 3A was part of the New England road marking system as New England Route 6A (NE-6A). In 1926, all roads designated as NE-6A were changed to New Hampshire Route 3A and Massachusetts Route 3A to accommodate the change of New England Route 6 to U.S. Route 3.

Junction list[edit]

Southern segment[edit]

County Location[1][2] mi[1][2] km Destinations Notes
Hillsborough Hudson 0.000 0.000 Route 3A (Frost Road) – Tyngsborough Continuation from Massachusetts
2.170 3.492 Circumferential Highway  to US 3 / Everett Turnpike – Boston, South Nashua
5.036 8.105 NH 111 (Ferry Street) / NH 102 – Nashua Western terminus of NH 102; southern end of concurrency with NH 102
6.044 9.727 NH 102 east (Derry Road) – Derry Northern end of concurrency with NH 102
Manchester 19.214–
19.314
30.922–
31.083
I‑293 / NH 101 – Salem, Concord, Portsmouth Exit 2 on I-293
21.257 34.210 US 3 north (Elm Street) Southern end of wrong-way concurrency with US 3
21.900–
21.918
35.245–
35.274
US 3 south (Second Street) / NH 114A
I‑293 / Everett Turnpike – Concord, Boston
Northern end of wrong-way concurrency with US 3; southern end of concurrency with I-293
Exit 4 on I-293; eastern terminus of NH 114A
23.290 37.482 Granite Street Exit 5 on I-293
24.472 39.384 Amoskeag Bridge / Goffstown Road Exit 6 on I-293
24.908 40.086 I‑293 / Everett Turnpike Exit 7 on I-293; northern end of concurrency with I-293; northbound exit and southbound entrance
Merrimack Hooksett 27.298–
27.673
43.932–
44.535
I‑93 – Boston, Concord, Plymouth* Exit 10 on I-93
30.867 49.676 Hackett Hill Road to To I‑93 – Concord, Manchester* Exit 11 on I-93
Bow 37.601 60.513 I‑89 north – Bow, Lebanon Southern terminus of I-89
Concord 38.003–
38.340
61.160–
61.702
I‑93 – Tilton, Plymouth, Manchester* Exit 12 on I-93
39.412 63.427 US 3 (Water Street / South Main Street)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

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

Northern segment[edit]

County Location[1][3] mi[1][3] km Destinations Notes
Merrimack Franklin 0.000 0.000 US 3 / NH 127 north / NH 11 east (Central Street)
US 3 (South Main Street) / NH 127 south
Southern terminus of northern segment; southern end of concurrency with NH 11
1.020 1.642 NH 11 west (Webster Lake Road) – Andover Northern end of concurrency with NH 11
Grafton Bristol 13.109 21.097 NH 104 east (Summer Street) – New Hampton Southern end of concurrency with NH 104
13.305 21.412 NH 104 west (Pleasant Street) – Danbury Northern end of concurrency with NH 104
Plymouth 27.009 43.467 NH 25 west – Rumney, Woodsville Southern end of concurrency with NH 25
30.547 49.161 US 3 / NH 25 east (Main Street) – Plymouth Interchange; northern end of concurrency with NH 25
31.015 49.914 I‑93 (Styles Bridges Highway) – Littleton, Concord Northern terminus; Exit 26 on I-93
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References[edit]

  1. ^ a b c d e f Bureau of Planning & Community Assistance (February 20, 2015). "NH Public Roads". Concord, New Hampshire: New Hampshire Department of Transportation. Retrieved April 7, 2015. 
  2. ^ a b Bureau of Planning & Community Assistance (April 3, 2015). "Nodal Reference 2015, State of New Hampshire". New Hampshire Department of Transportation. Retrieved April 7, 2015. 
  3. ^ a b Bureau of Planning & Community Assistance (April 3, 2015). "Nodal Reference 2015, State of New Hampshire". New Hampshire Department of Transportation. Retrieved April 7, 2015. 

External links[edit]

Southern segment[edit]

Northern segment[edit]