S.D. Codified Laws § 31-3-6
Upon receiving a petition signed by two or more voters of an organized civil township, the board of supervisors, having jurisdiction, shall provide for a public hearing, as required by § 31-3-7, and after consideration of all information, opinions, and arguments presented, may, except as provided in §§ 31-3-12 and 31-3-44, vacate, change, or locate a highway in the township, if the public interest will be better served by the action.
Upon receiving a petition signed by voters of the county, at least equal in number to one percent of those who cast ballots in the county during the last gubernatorial election, the board of county commissioners, having jurisdiction, shall provide for a public hearing, as required by § 31-3-7, and after consideration of all information, opinions, and arguments presented, may, except as provided in §§ 31-3-12 and 31-3-44, vacate, change, or locate a highway in the county, if the public interest will be better served by the action.
Upon receiving a petition signed by two thirds of the adjacent landowners or all adjacent landowners if there are fewer than three, the board of county commissioners, having jurisdiction, shall provide for a public hearing, as required by § 31-3-7, and after consideration of all information, opinions, and arguments presented, may vacate the highway, if the public interest will be better served by the action.
The petition must set forth the beginning, course, and termination of the highway proposed to be located, changed, or vacated and, if applicable, the name of each person owning the land through which the proposed highway may pass.
SDCL 31-3-6