New Hampshire Route 140

New Hampshire Route 140 is a 21.142-mile-long (34.025 km) east–west state highway in central New Hampshire, running from Tilton to Alton. The western terminus of NH 140 is in Tilton at an intersection with U.S. Route 3, New Hampshire Route 11 and New Hampshire Route 132, located at exit 20 on Interstate 93. The eastern terminus is in Alton at NH 11 and New Hampshire Route 28A (Main Street). In Alton, the road is named the Frank C. Gilman Highway.

New Hampshire Route 140
Map of central New Hampshire with NH 140 highlighted in red
Route information
Maintained by NHDOT
Length	21.142 mi[1] (34.025 km)
Major junctions
West end	I-93 / US 3 / NH 11 / NH 132 in Tilton
East end	NH 11 / NH 28A in Alton
Location
Country	United States
State	New Hampshire
Counties	Belknap, Merrimack
Highway system
New Hampshire Highway System Interstate US State Turnpikes
← NH 137 → NH 141

NH 140 (along with I-93) is commonly used as an alternative for motorists during the busiest NASCAR events at New Hampshire Motor Speedway in Loudon. The main highway to the speedway, New Hampshire Route 106, is converted to one-way traffic to accommodate the increased amount of traffic.

Major intersections

County	Location[1][2]	mi[1][2]	km	Destinations	Notes
Belknap	Tilton	0.00	0.00	I-93 US 3 / NH 11 / NH 132 – Tilton, Franklin, Laconia	Western terminus; Exit 20 on I-93
Merrimack	No major junctions
Belknap	Belmont	5.006	8.056	NH 106 – Laconia, Concord, Speedway
	Gilmanton	8.940	14.388	NH 107 – Laconia, Pittsfield
	Alton	21.142	34.025	NH 11 / NH 28A – Alton Bay, Wolfeboro, Rochester	Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi