S.D. Codified Laws § 31-10-9 (2026)
Any agreement entered into under §§ 31-10-2 to 31-10-11, inclusive, by the department, for the purchase or construction of any bridge, may provide for one or more annual payments, but not exceeding ten. A reasonable rate of interest may be paid on deferred installments to be paid under any agreement.
Source: SL 1947, ch 132 , § 6; SDC Supp 1960, § 28.1430; SL 2010, ch 145 , § 86.