Conn. Gen. Stat. § 52-578

No action shall be brought by the owner of land adjoining a public highway, or of any interest in such land, for recovery of special damage to such property or interest by reason of any change in the grade of such highway, or by reason of excavations in such highway made in the process of repairing the same by the town, city or borough in which such highway is situated, except within six years next after the right of action accrues.