(1) When a public nuisance has been declared, as provided in this part, the city or town shall give public notice for at least 60 days to owners of the ditch and of any water rights affected that such ditch has been declared a public nuisance and that it shall be closed and filled unless the owners of such rights desire to keep the ditch open.
(2) Such notice shall include publication once each week for at least 8 successive weeks in an established newspaper published within the city or town if one exists or, in its absence, in the official county newspaper.