Conn. Gen. Stat. § 26-140

Notwithstanding any taking or purchase made or to be made for highway purposes by the commissioner of transportation, the fishing rights in any flowing stream crossing such highway shall run with the land of the abutting owner, condemnee or grantor, as the case may be, unless just compensation for such fishing rights has been determined and paid and the deed or instrument conveying title expressly transferred such rights. The commissioner may, by regulations adopted in accordance with the provisions of chapter 54, prohibit, regulate or curtail the exercise of such rights by any such owner from any bridge under the control of said commissioner.