Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 543.610

(1) Upon not less than two years' notice in writing the state, or any municipality thereof, shall have the right at any time to take over and thereafter to maintain and operate any project constructed under a license pursuant to ORS 543.010 to 543.610, upon payment of just compensation, including such reasonable damages, if any, to valuable, serviceable and dependent property of the holder of the license, not taken over, as may be caused by the severance therefrom of the property taken, and shall assume all contracts entered into by the licensee which are required to have and do have the express approval of the Water Resources Commission. If the sum to be paid cannot be agreed upon by the holder of the license and the municipality or the state, as the case may be, it shall be determined in a proceeding in equity instituted by the state or municipality, as the case may be, in the circuit court of the county in which the major part of the project is located.

(2) There is also expressly reserved to the state, and any municipality thereof, the right to take over all or any part of any project by condemnation proceedings as may be provided by the laws of Oregon or the charter of any such municipality.