Indiana Code Title 14. Natural and Cultural Resources § 14-26-1-4

(1) Act on behalf of the state under this chapter.

(2) Purchase or condemn easements or fee simple interests, as provided in this chapter, in land necessary for reservoirs for storage of water to be used for:

purposes stated in section 1 of this chapter.

(3) Construct and otherwise develop necessary structures for impoundment of water on sites acquired for reservoirs.  If the impoundment inundates or otherwise physically affects properties under the jurisdiction of any other commission or department of the state, the commission shall secure the consent of the other commission or department before proceeding with the impoundment.