Ind. Code § 8-23-18-3

Sec. 3. Each city, town, township, county, school corporation and other political subdivision of the state, public corporation, instrumentality, or agency supported in whole or part by taxation may convey and grant to the state for the use and benefit of the department, by voluntary conveyance or grant, with or without consideration, any real property or rights in or to real property needed or reasonably necessary for a state highway.