Wis. Stat. § 86.20: Interstate bridge corporations.

Any corporation organized for the purpose of constructing, operating and maintaining a bridge over navigable boundary waters of this state and authorized by congress to erect such bridge shall have all the rights and powers with respect to entry upon, and acquisition, of real estate for the construction, operation and maintenance of such bridge, with the necessary approaches, terminals and appurtenances thereto, that are possessed by railroad corporations.