Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 547.081

(1) If the owner or occupant of the premises upon which the clogged or obstructed flood control project is situated fails for 10 days after being notified of the existence of the clogged or obstructed condition, to submit to the drainage district a plan and schedule to repair, clean or grade the flood control project or remove the obstruction therefrom, the board of supervisors shall immediately repair, clean or grade the same and cause it to be promptly placed in a proper and efficient condition.

(2) The drainage district shall review a plan and schedule submitted by an owner or occupant to determine whether the plan and schedule adequately address the clogged or obstructed condition in an effective and timely manner. If the drainage district approves the plan and schedule, the owner or occupant shall repair, clean or grade the flood control project or remove the obstruction therefrom pursuant to the plan and schedule. If the owner or occupant fails to do so pursuant to the plan and schedule, the board of supervisors shall immediately repair, clean or grade the same and cause it to be promptly placed in a proper and efficient condition.

(3) Nothing in this section precludes the board of supervisors from immediately repairing, cleaning or grading the clogged or obstructed flood control project in cases of emergency.