Ind. Code § 8-4-1-22
Whenever the track of such railroad shall cross a road or highway, such road or highway may be carried under or over the track, as may be most expedient; and in cases where an embankment or cutting shall make a change in the line of such road or highway desirable, with a view to a more easy ascent or descent, the rail carrier may take such additional lands for the construction of such road or highway, or such new line, as may be deemed requisite by said directors. Unless the lands so taken shall be purchased or voluntarily given for the purposes aforesaid, compensation therefor shall be ascertained, in the manner in this chapter provided, as nearly as may be, and duly made by the rail carrier to the owners and persons interested in such lands; and the same, when so taken and compensation made, to become part of such intersecting road or highway, in such manner and by such terms as the adjacent parts of such highway may be held for highway purposes.
IC 8-4-1-22