S.D. Codified Laws § 49-16A-100.3
Any utility that intends to place a facility across a railroad right-of-way shall provide to the railroad notice of the placement at least thirty days before the placement. The notice shall include a completed crossing application, including a drawing showing the location of the proposed crossing and the railroad's property, tracks, and wires that the utility will cross. The utility shall submit the crossing application on a form provided or approved by the railroad, if available. The crossing application shall be sent to the railroad by certified mail, return receipt requested. The application shall be accompanied by the crossing fee as set forth in § 49-16A-100.5, and a certificate of insurance as required by § 49-16A-100.6.
SDCL 49-16A-100.3