Connecticut Route 12

Route 12
Map of eastern Connecticut with Route 12 highlighted in red
Route information
Maintained by ConnDOT
Length:	54.46 mi[1] (87.64 km)
Existed:	1922 – present
Major junctions
South end:	US 1 in Groton
	I-95 / Route 184 in Groton Route 2A in Preston Route 2 in Norwich I-395 in Lisbon US 6 in Danielson Route 101 in Dayville US 44 in Putnam
North end:	Route 12 at Dudley, MA
Location
Counties:	New London, Windham
Highway system
Routes in Connecticut Interstate U.S. State SSR SR ← Route 11 Route 14 →

Connecticut Route 12 is a state highway that runs between Groton and the state line in Thompson.

History

Route 12 in Groton near its southern end

Route 12 was preceded by New England Interstate Route 12. The southern terminus of NE-12 was originally at New London, Connecticut. It travelled along present-day Route 32 (along the west bank of the Thames River) from New London to Norwich, Connecticut. In 1932, when Connecticut decommissioned its New England Routes, Route 12 swapped places with Route 32 south of Norwich. From Norwich to the Massachusetts border, Route 12 still follows its 1920s alignment.

Route description

Route 12 from Groton to Norwich is a primary route, serving the Naval Submarine Base New London and is known as the U.S. Submarine Veterans Memorial Highway. North of Norwich, Route 12 is a minor road closely paralleling Interstate 395. Route 12 goes through the following towns: Groton, Ledyard, Preston, Norwich, Lisbon, Griswold, Canterbury (0.14 miles only), Plainfield, Killingly, Putnam, and Thompson.

Junction list

County	Location	mi	km	Destinations	Notes
New London	Groton	0.0	0.0	US 1 south – Downtown Groton
		0.1	0.2	I-95 – New London, New Haven	I-95 Exit 85
		0.2	0.3	Route 184 east – Center Groton, Ledyard
	Ledyard	6.9	11.1	Route 214 east – Ledyard
	Preston	9.1	14.6	Route 2A west to I-395 – Uncasville	Western end of CT 2A overlap
		9.4	15.1	Route 2A east – Hallville	Eastern end of CT 2A overlap
	Norwich	12.1	19.5	Route 2 west – Hartford	Western end of CT 2 overlap
		13.7	22.0	Route 2 east – Preston City, Westerly RI	Eastern end of CT 2 overlap
		15.2	24.5	Route 97 north – Taftville
	Lisbon	19.6	31.5	I-395 – Worcester, New Haven	I-395 Exits 21 A-B
		20.4	32.8	Route 138 west – Newent	Western end of CT 138 overlap
	Griswold	20.8	33.5	Route 138 east – Pachaug	Eastern end of CT 138 overlap
		21.0	33.8	Route 201 east – Hopeville Pond State Park
Windham	Plainfield	27.5	44.3	Route 14A west – Plainfield, Canterbury
		27.9	44.9	Route 14A east to I-395 – Sterling
		30.3	48.8	Route 14 east to I-395 – Moosup
		30.6	49.2	Route 14 west – Canterbury
		32.1	51.7	Route 205 north – Wauregan, Brooklyn
	Killingly	36.2	58.3	US 6 east to I-395	Eastern end of US 6 overlap
		36.5	58.7	US 6 west – Brooklyn, Willimantic, Hartford	Western end of US 6 overlap
		39.5	63.6	Route 101 to I-395 – Dayville, East Killingly
		42.0	67.6	Route 21 north – Putnam Heights
	Putnam	45.6	73.4	US 44 west – Pomfret	Western end of US 44 overlap
		46.0	74.0	Route 171 west – Woodstock
		46.2	74.4	US 44 east to I-395 – Providence	Eastern end of US 44 overlap
	Thompson	48.2	77.6	Route 193 north – Thompson, Worcester
		48.9	78.7	I-395 south – Danielson, Norwich	I-395 Exit 98, partial interchange
		49.9	80.3	Route 200 east – Thompson
		52.0	83.7	Route 131 north – Fabyan, Quinebaug, Southbridge
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

External links

Route map: Bing / Google

Media related to Connecticut Route 12 at Wikimedia Commons

• Route 12 at Connecticut Roads