Indiana Code Title 36. Local Government § 36-10-4-21

Sec. 21. (a) The board may exercise the power of eminent domain for the purposes of this chapter:

of the corporate boundaries of the city and within the county in which the city is located.

(b) If the land or surface of the ground on, over, or across which it is necessary or advisable to establish, construct, or improve a boulevard, parkway, or pleasure driveway is already in use for another public purpose or has been condemned or appropriated for a use authorized by statute and is being used for that purpose by the entity appropriating it, the public use or prior condemnation does not bar the board from condemning the use of the ground for park purposes.  However, the use by the board does not permanently prevent the use of the land or the surface of the ground for the prior public use or by the entity condemning or appropriating it.  In a proceeding prosecuted by the board to condemn the use of land or the surface of the ground for purposes permitted by this chapter, the board must show that its proposed use will not permanently or seriously interfere with the continued use of the land or the surface of the ground.