S.D. Codified Laws § 46A-5-10
The board of directors may construct works across any stream of water, watercourse, street, avenue, highway, railway, canal, ditch, or flume that the route of the canal may intersect or cross, in such manner as to afford security to life and property. However, the board shall restore the stream of water, watercourse, street, avenue, highway, railway, canal, ditch, or flume to its former state as near as may be, or in a manner that will not unnecessarily impair its usefulness. Any company whose railroad is intersected or crossed by such works may unite with the board in forming the intersections and crossings, and grant the privileges specified in this section. If the railroad company and the board, or the owners and controllers of the property, thing, or franchise to be crossed, cannot agree upon the amount to be paid for the crossing, or the points or the manner of the crossing, the issues shall be ascertained and determined in all respects as provided in condemnation proceedings.
SDCL 46A-5-10