For the purposes of planning, enlarging, maintaining, equipping, and protecting railroads and railroad facilities, there is hereby created a special fund within the state treasury known as the railroad trust fund. All moneys in the fund, except as otherwise provided in this chapter, shall be expended in accordance with the provisions of chapter 4-7, chapter 4-8, chapter 4-8A, and chapter 4-8B.
SDCL 49-16C-1