Route 12 | ||||
|---|---|---|---|---|
 Map of eastern Connecticut with Route 12 highlighted in red | ||||
| Route information | ||||
| Maintained by CTDOT | ||||
| Length | 54.46 mi[1] (87.64 km) | |||
| Existed | 1922–present | |||
| Major junctions | ||||
| South end |    I-95 / US 1 / Route 184 in Groton | |||
| North end |  Route 12 at Dudley, MA | |||
| Location | ||||
| Country | United States | |||
| State | Connecticut | |||
| Counties | New London, Windham | |||
| Highway system | ||||
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Connecticut Route 12 is a state highway that runs between Groton and the state line in Thompson.
- ^ Connecticut State Numbered Routes and Roads as of December 31, 2004 Archived 2015-09-05 at the Wayback Machine (PDF)
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