Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 541.070

All ditches, canals and flumes permanently affixed to the soil, constructed under the provisions of the Act of 1891, pages 52 to 60, Oregon Laws 1891, are declared to be real estate, and the same or any interest therein shall be transferred by deed only, duly witnessed and acknowledged. The vendee of the same, or any interest therein, at any stage shall succeed to all the rights of the vendor, and shall be subject to the same liabilities during ownership.