Military Highway, Laurel Hill Road, Laurel Hill Avenue, North Main Street, Boswell Avenue, Norwich Avenue, Jewett City Road, River Road, Main Street, Plainfield Road, Norwich Road, Putnam Road, Wauregan Road, Putnam Pike, Killingly Avenue, Grove Street, South Main Street, Mechanics Street, Riverside Drive

Southern Terminus:
Long Hill Road (US 1) in Groton
Northern Terminus:
Connecticut-Massachusetts state line
54.46 miles
New London, Windham

CT 12 is a north/south route through the easternmost section of Connecticut. It serves as a local alternative to I-395. It begins at Long Hill Road (US 1) in Groton and runs north to the border with Massachusetts, where it becomes MA 12.

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Copyright © 2003-2022 by David Golub. All rights reserved. The author would like to thank William Roll for contributing photographs and LC for contributing documents to this web site. You may not reproduce any text or photographs on this web site without express permission from the author. Hotlinking of images from this site is strictly prohibited. Route symbols based on graphics from Central PA/MD Roads and Wikipedia. Map icons by