Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 552.208

(1) Electors of a district shall elect a board of directors whose number shall be fixed at five, seven or nine by the county board at the proceedings on formation. Directors shall be owners of land within the district. The directors need not reside within the district.

(2) Each director shall be elected for a term of four years except the directors elected on creation of the district. The directors first elected shall determine their terms by lot as follows:

(3) The board of directors shall fill any vacancy on the board as provided in ORS 198.320.

(4) The board or 10 or more landowners may petition the county board to change the number of directors on the district board. If the county board acts favorably on the petition, it shall enter an order which designates the terms of office of the five, seven or nine directors in general accordance with this section so that the number remaining on the district board will be divided into two equal or approximately equal groups as to terms. The change in the number of board members shall take place on July 1 next following the order.