S.D. Codified Laws § 31-26-4 (2026)
When any highway along which a line has been constructed pursuant to § 31-26-1 shall be changed, the grantee shall, upon ninety days' notice in writing, remove such line to the highway as changed.
Source: SL 1913, ch 369 , § 1; RC 1919, § 8591; SDC 1939, § 28.1001 (3); SL 1939, ch 108 ; SL 1953, ch 149 , § 1; SL 1953, ch 150 .