S.D. Codified Laws § 31-19-20
Whenever any land or material, dirt, sand, or gravel is required for the construction, reconstruction, maintaining, or repairing of any portion of the state trunk highway, or for the relocating of utility facilities, and if the land or material, dirt, sand, or gravel lies outside the right-of-way of the highway or adjacent borrow pits, the state shall purchase or condemn the land or material, dirt, sand, or gravel and pay for the same out of the state highway fund. The land or material, dirt, sand, or gravel may be acquired either by purchase or condemnation and any cost or expense of purchase or condemnation shall be paid for in the same manner as material, dirt, sand, or gravel or land is paid for. In case of condemnation, the proceedings provided for condemnation in §§ 31-19-1 to 31-19-19, inclusive, or the provisions of chapter 21-35 are applicable and either proceeding may be used.
SDCL 31-19-20