Oregon Revised Statutes Public Facilities, Contracting and Insurance § 276.240

(1) In any condemnation proceedings under ORS 276.234 to 276.244, the practice, pleadings, forms and modes of procedure shall conform as near as may be applicable to the practice, pleading, forms and procedure prescribed for the appropriation of real property by private corporations in ORS chapter 35.

(2) When it appears that the Oregon Department of Administrative Services has offered the defendant, before commencing the action, an amount equal to or greater than that assessed by the jury, the state shall recover its costs and disbursements from the defendant.

(3) If condemnation proceedings are commenced, the department may, at the date of the commencement of the proceedings, take immediate possession of the real property, water and water rights, and watercourses and privileges mentioned in ORS 276.236, or of so much of any or either thereof as may be necessary for the uses of the state, and continue in the possession and have and enjoy the use thereof during the pendency of the condemnation proceedings and until the final determination of the condemnation proceeding, including an appeal to the Court of Appeals if appeal is taken. The reasonable rental value for such time shall be assessed by the jury, if the case is tried before a jury, otherwise by the court. The defendant owner shall have judgment for such reasonable rental value, regardless of whether the condemnation proceedings are finally decided for or against the department. Such reasonable rental value shall be included in the general damages allowed by the court or jury.