Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 553.240

(1) The county court may be established as the governing body of a water control district as provided by this section if the boundaries of the district are coterminous with the boundaries of the county.

(2) At the election of the first governing body of a water control district, the electors of the district shall choose either the county court or a board of directors to be the governing body of the district. The electors of the district also shall vote for directors, who shall take office if the electors choose to have a board of directors as the governing body.

(3) If a majority of the votes cast at the election favors the county court as the governing body of the district, all duties, functions and powers granted to a board of directors of a water control district are vested in the county court. The county court shall be the governing body of the water control district until the district is dissolved.