Wis. Stat. § 182.016: River improvement corporations may flow lands.

Any domestic corporation created in whole or in part for the purpose of improving any stream and driving, holding or handling logs therein, and any corporation owning or controlling dams, booms or improvements designed to accomplish any of said purposes, or any municipality or any domestic corporation organized for the purpose of furnishing electric current for public purposes, shall have the power to acquire all such lands as shall be necessary for its use for ponds and reservoir purposes. Nothing in this section shall be construed as repealing any provision of s. 31.30.