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

Connecticut Route 12 marker

Route 12
Map of eastern Connecticut with Route 12 highlighted in red
Route information
Maintained by ConnDOT
Length54.46 mi[1] (87.64 km)
Existed1922–present
Major junctions
South end US 1 in Groton
 
North end Route 12 at Dudley, MA
Location
CountiesNew London, Windham
Highway system
  • Routes in Connecticut
Route 11Route 14

HistoryEdit

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 descriptionEdit

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.

 
Route 12 in Groton near its southern end

Junction listEdit

CountyLocationmikmDestinationsNotes
New LondonGroton0.00.0  US 1 south – Downtown Groton
0.110.18  I-95 – New London, New HavenI-95 Exit 85
0.220.35  Route 184 east – Center Groton, Ledyard
Ledyard6.8611.04  Route 214 east – Ledyard
Preston9.0814.61   Route 2A west to I-395 / Conn. Turnpike – UncasvilleWestern terminus of CT 2A overlap
9.3815.10  Route 2A east – HallvilleEastern terminus of CT 2A overlap
Norwich12.1219.51  Route 2 west – HartfordWestern terminus of CT 2 overlap
12.4320.00  Route 2 east – Preston City, Westerly RIEastern terminus of CT 2 overlap
15.1924.45  Route 97 north – Taftville
Lisbon19.6231.58  I-395 / Conn. Turnpike – Worcester, New HavenI-395/Conn. Tpk. Exits 21 A-B
20.4332.88  Route 138 west – NewentWestern terminus of CT 138 overlap
Griswold20.8233.51  Route 138 east – PachaugEastern terminus of CT 138 overlap
21.0533.88  Route 201 south – Hopeville Pond State Park
WindhamPlainfield27.5044.26  Route 14A west – Plainfield, CanterburyWestern terminus of CT 14A overlap
27.9144.92   Route 14A east to I-395 / Conn. Turnpike – Sterling
30.3148.78   Route 14 east to I-395 / Conn. Turnpike – MoosupEastern terminus of CT 14 overlap
30.5949.23  Route 14 west – CanterburyWestern terminus of CT 14 overlap
32.1251.69  Route 205 north – Wauregan, Brooklyn
Killingly36.1558.18   US 6 east to I-395 – ProvidenceEastern terminus of US 6 overlap
36.5158.76  US 6 west – Brooklyn, Willimantic, HartfordWestern terminus of US 6 overlap
39.4663.50   Route 101 to I-395 – Dayville, East Killingly
42.0467.66  Route 21 north – Putnam Heights
Putnam45.5873.35  US 44 west – PomfretWestern terminus of US 44 overlap
46.0274.06  Route 171 west – Woodstock
46.2274.38   US 44 east to I-395 – ProvidenceEastern terminus of US 44 overlap
Thompson48.1777.52  Route 193 north – Thompson, Worcester
48.8878.66  I-395 south – Danielson, NorwichI-395 Exit 49, partial interchange
49.8880.27  Route 200 east – Thompson
51.9583.61  Route 131 north – Fabyan, Quinebaug, Southbridge
54.4687.64  Route 12 north – Auburn, WorcesterContinues into Webster as MA 12
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

ReferencesEdit

External linksEdit