The provisions of § 31-28-19 and 31-28-20 do not prohibit the erection upon private property adjacent to highways of signs giving useful directional information and of a type that cannot be mistaken for official signs.
S.D. Codified Laws § 31-28-21
Signs on private property
Source: SL 1963, ch 274, § 4 (3); SL 2010, ch 145, § 145.
Official source: South Dakota Legislature. Reproduced from public-domain South Dakota statutes; confirm against the official source for the current text. Not legal advice.