S.D. Codified Laws § 5-15-11
The commission may make all necessary surveys in connection with its work, plat and replat the area of the capitol complex acquired by the commission, or any part thereof, and open and dedicate streets to the use of the public in such area, granting easements therein and use thereof to the city of Pierre, South Dakota, and to the public, for sewer, water, and electricity, and other facilities. The commission may vacate any streets or alleys in the manner provided by law in the areas acquired by the commission or bordering on or adjacent thereto. The commission may make agreements with the city for replacement of its facilities in any vacated streets within the area and grant easements for erection and maintenance of other necessary facilities and utilities.
SDCL 5-15-11