New Hampshire Route 123

New Hampshire Route 123
Route information
Maintained by NHDOT
Length:	62.95 mi[1] (101.31 km)
Major junctions
South end:	Valley Road in Townsend, MA
North end:	VT Route 123 near Walpole
Highway system
New Hampshire Routes ← NH 122 NH 123A →

New Hampshire Route 123 (abbreviated NH 123) is a 62.95-mile (101.31 km) long 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 Valley 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 departs Whitcomb Road and turns south onto NH 12 to run north–south alongside the Connecticut River, the water body that represents the border between New Hampshire and Vermont. One point of interest is that 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.

History

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 five miles 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 three miles from 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.

New Hampshire Route 123A

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

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

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.

References

1. ^ ^{a b c} New Hampshire Routes 101-125