New Hampshire Route 123

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New Hampshire Route 123 marker

New Hampshire Route 123
Map of southern New Hampshire with NH 123 highlighted in red
Route information
Maintained by NHDOT
Length: 62.95 mi[1] (101.31 km)
Major junctions
South end: Valley Road in Townsend, MA
  NH 31 in Greenville
US 202 / NH 101 in Peterborough
NH 9 in Stoddard
NH 10 in Marlow
NH 12 in Walpole
North end: VT 123 near Walpole
Counties: Hillsborough, Cheshire
Highway system

New Hampshire Routes

NH 122 NH 124

New Hampshire Route 123 (abbreviated NH 123) is a 62.95-mile-long (101.31 km) secondary north–south state highway in southwestern New Hampshire. The southern terminus of the route is at the Massachusetts state line in Mason where, as Mason Road, the road continues as an unnumbered local road in the town of Townsend. The northern terminus, as signed, is at the Vermont border, where NH 123 continues west for a half-mile to U.S. Route 5 as Vermont Route 123. Route logs, however, place the terminus at New Hampshire Route 12 in Walpole.

In Walpole, NH 123 runs in a wrong-way concurrency with NH 12 north–south alongside the Connecticut River, the water body that represents the border between New Hampshire and Vermont. For the entire length of the NH 12/NH 123 concurrency, NH 123 South is, in reality, heading north on the compass while NH 123 North is traveling to the south.


NH Route 123 heading northbound

In October 2005, heavy flooding in the New Hampshire area forced the closure of NH 123 in two different locations. The first was at the intersection of NH 123 and Cold River Road, approximately 5 miles (8 km) from the beginning of NH 123 in New Hampshire, where a bridge was destroyed from high water in the Cold River. The second closure was approximately 3 miles (5 km) south of New Hampshire Route 123A in the town of Alstead, where a section of roadway was completely washed away by the water. Both sections were subsequently rebuilt and reopened.

Major intersections[edit]

County Location Mile km Destinations Notes
Hillsborough Mason 0.0 0.0 Mason Road (Townsend, MA) Massachusetts–New Hampshire line
To Route 124
Greenville 5.2 8.4 NH 31 south (Fitchburg Road) Southern end of NH 31/123 concurrency
5.4 8.7 NH 31 north (Fitchburg Road) Northern end of NH 31/123 concurrency
6.3 10.1 NH 45 north (Main Street) Southern terminus of NH 45
New Ipswich 7.9 12.7 NH 124 east (Turnpike Road) Eastern end of NH 123/124 concurrency
9.4 15.1 NH 123A south (Main Street) Northern terminus of NH 123A (southern segment)
12.8 20.6 NH 124 west (Turnpike Road) Western end of NH 123/124 concurrency
Peterborough 19.0 30.6 NH 101 east (Wilton Road) Eastern end of NH 101/123 concurrency
19.8 31.9 US 202 / NH 101 west (Wilton Road) Western end of NH 101/123 concurrency
Southern end of US 202/NH 123 concurrency
22.1 35.6 NH 136 east (Greenfield Road) Western terminus of NH 136
Hancock 25.5 41.0 US 202 east (Concord Street) Northern end of US 202/NH 123 concurrency
28.1 45.2 NH 137 north (Bennington Road) Eastern end of NH 123/137 concurrency
28.3 45.5 NH 137 south (Old Hancock Road) Western end of NH 123/137 concurrency
Cheshire Stoddard 35.3 56.8 NH 9 west (Franklin Pierce Highway) Southern end of NH 9/123 concurrency
36.4 58.6 NH 9 east (Franklin Pierce Highway) Northern end of NH 9/123 concurrency
Marlow 44.2 71.1 NH 10 south (Gilsum Road) Southern end of NH 10/123 concurrency
45.3 72.9 NH 10 north Northern end of NH 10/123 concurrency
Alstead 54.0 86.9 NH 12A south (Alstead Center Road) Southern end of NH 12A/123 concurrency
54.8 88.2 NH 123A east (Acworth Road) Western terminus of NH 123A (northern segment)
55.4 89.2 NH 12A north (High Street) Northern end of NH 12A/123 concurrency
Walpole 60.2 96.9 NH 12 north Northern end of NH 12/123 concurrency
62.9 101.2 NH 12 south (Bellows Falls Road) Southern end of NH 12/123 concurrency
63.1 101.5 VT 123 west Vermont-New Hampshire line
To US 5
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

New Hampshire Route 123A[edit]

Signage near the western end of NH Route 123A's northern segment, as viewed from NH Routes 12A/123

New Hampshire Route 123A (abbreviated NH 123A) is a designation held by two separate state highways in New Hampshire, USA. Although the two segments are not directly connected, they are linked by their parent route, New Hampshire Route 123.

Southern segment[edit]

New Hampshire Route 123A
Location: New Ipswich
Length: 4.2 mi[1] (6.8 km)

The southern segment of NH 123A is a 4.2-mile (6.8 km) long secondary rural road that runs from the town of New Ipswich to the Massachusetts border.

The southern terminus of this segment is at the Massachusetts state line in New Ipswich. At this location, the road is locally named Ashburnham Road. The road continues into Massachusetts and becomes West Road in the town of Ashby. The northern terminus is at NH 123 and New Hampshire Route 124 in New Ipswich. At this location, NH 123A is locally named Main Street.

Northern segment[edit]

New Hampshire Route 123A
Location: Alstead-Marlow
Length: 10.06 mi[1] (16.19 km)

The northern segment of NH 123A is a 10.06-mile (16.19 km) long secondary rural east–west highway in western New Hampshire, running between the towns of Alstead and Marlow. The eastern terminus of this segment of NH 123A is at New Hampshire Route 10 in Marlow. The western terminus is at NH 123 in Alstead. The road is the only state highway in the town of Acworth, and is the main road through the village of South Acworth.


External links[edit]