Newfield Street, Shunpike Road, Cromwell Avenue, Maple Street

Southern Terminus:
Washington Street (CT 66) in Middletown
Northern Terminus:
CT 2 in East Hartford
14.48 miles
Middlesex, Hartford

CT 3 is a north/south route extending from Middletown to East Hartford. It begins at Washington Street (CT 66) and runs north as a surface road through Cromwell and Rocky Hill to Wethersfield. There, it has an interchange with I-91 and becomes an expressway. It crosses a bridge over the Connecticut River and then promptly ends at the CT 2 expressway.

Prior to the construction of the CT 72 expressway, CT 72 followed what is now CT 372, SR 524, and CT 3 to end at Washington Street (CT 66). In those days, CT 3 ended at CT 72 in Cromwell.

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