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 | ||||
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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 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 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.
History
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
Southern segment
Note that NH 3A is unsigned along its concurrency with I-293 in Manchester.
| 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
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*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[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
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References
- 1 2 3 4 5 6 Bureau of Planning & Community Assistance (February 20, 2015). "NH Public Roads". Concord, New Hampshire: New Hampshire Department of Transportation. Retrieved April 7, 2015.
- 1 2 Bureau of Planning & Community Assistance (April 3, 2015). "Nodal Reference 2015, State of New Hampshire". New Hampshire Department of Transportation. Retrieved April 7, 2015.
- 1 2 Bureau of Planning & Community Assistance (April 3, 2015). "Nodal Reference 2015, State of New Hampshire". New Hampshire Department of Transportation. Retrieved April 7, 2015.