Connecticut Route 12
History
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 | ![]() ![]() | Southern terminus | ||
0.22 | 0.35 | ![]() ![]() ![]() ![]() ![]() ![]() | Exit 1 on Route 184 | ||||
Ledyard | 6.86 | 11.04 | ![]() ![]() | ||||
Preston | 9.08 | 14.61 | ![]() ![]() ![]() ![]() | Southern terminus of Route 2A overlap | |||
9.38 | 15.10 | ![]() ![]() | Northern terminus of Route 2A overlap | ||||
Norwich | 12.12 | 19.51 | ![]() ![]() ![]() ![]() | Western terminus of Route 2 overlap | |||
12.43 | 20.00 | ![]() ![]() | Northern terminus of Route 2 overlap | ||||
15.19 | 24.45 | ![]() ![]() | |||||
Lisbon | 19.62 | 31.58 | ![]() | Exits 21A-B on I-395 | |||
20.43 | 32.88 | ![]() ![]() | Southern terminus of Route 138 overlap | ||||
Griswold | 20.82 | 33.51 | ![]() ![]() | Northern terminus of Route 138 overlap | |||
21.05 | 33.88 | ![]() ![]() | |||||
Windham | Plainfield | 27.50 | 44.26 | ![]() ![]() | Southern terminus of Route 14A overlap | ||
27.91 | 44.92 | ![]() ![]() ![]() ![]() | Northern terminus of Route 14A overlap | ||||
30.31 | 48.78 | ![]() ![]() ![]() ![]() | Southern terminus of Route 14 overlap | ||||
30.59 | 49.23 | ![]() ![]() | Northern terminus of Route 14 overlap | ||||
32.12 | 51.69 | ![]() ![]() | |||||
Killingly | 36.15 | 58.18 | ![]() ![]() ![]() ![]() | Southern terminus of US 6 overlap | |||
36.51 | 58.76 | ![]() ![]() | Northern terminus of US 6 overlap | ||||
39.46 | 63.50 | ![]() ![]() ![]() | |||||
42.04 | 67.66 | ![]() ![]() | |||||
Putnam | 45.58 | 73.35 | ![]() ![]() | Southern terminus of US 44 overlap | |||
46.02 | 74.06 | ![]() ![]() | |||||
46.22 | 74.38 | ![]() ![]() ![]() ![]() | Northern terminus of US 44 overlap | ||||
Thompson | 48.17 | 77.52 | ![]() ![]() | ||||
48.88 | 78.66 | ![]() ![]() | Exit 49 on I-395 | ||||
49.88 | 80.27 | ![]() ![]() | |||||
51.95 | 83.61 | ![]() ![]() | |||||
54.46 | 87.64 | ![]() ![]() | Continuation into Massachusetts | ||||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi |