New Hampshire Route 142

New Hampshire Route 142
Route information
Maintained by NHDOT
Length:	19.71 mi (31.72 km)
Major junctions
South end:	NH 18 in Franconia
North end:	NH 135 in Dalton
Highway system
New Hampshire Routes ← NH 141 NH 145 →

New Hampshire Route 142 (abbreviated NH 142) is a 19.71-mile (31.72 km) long north–south state highway in northern New Hampshire. The highway runs between Franconia in the White Mountains Region to Dalton in the upper Connecticut River valley.

The southern terminus of NH 142 is at the junction with New Hampshire Route 18 in Franconia. The highway winds north through Bethlehem and Whitefield, then turns northwest to Dalton. NH 142 runs concurrent with New Hampshire Route 116 for a distance of 3.6 miles (5.8 km) between Bethlehem and Whitefield. The northern terminus is in Dalton at New Hampshire Route 135, the Connecticut River Road.