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State Route Network Historical

Published by Connecticut Department of Transportation | State of Connecticut | Catalog Last Checked: September 22, 2026 at 11:12 PM | Dataset Last Updated: August 24, 2026
The data is a geographic rendering of the state route and local road segments as interpreted by the Department in accordance with 23 CFR 460.  The dataset contains historical yearly snapshots that are accurate to the .01 mileage. Years 2017 and newer.

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