SDCL § 7-18-15: County powers in implementation of flood control programs.

Every county shall have power

(1) To prevent or control flooding within its boundaries which endangers property;

(2) To enter into agreements with the United States, with the State of South Dakota, and with any authorized agency, subdivision, or unit of government, federal or state, to cooperate in preventing or controlling such flooding;

(3) To acquire by lease, purchase, gift, grant-in-aid, condemnation, or other lawful means and hold in its name for use and control as provided by law both real and personal property and easements and rights of way within the boundaries of the county for all purposes necessary to prevent or control such flooding; and

(4) For any and all of the foregoing purposes, to appropriate moneys therefor.