Oregon Revised Statutes Public Organizations for Community Service § 264.370

(1) At the time of the public hearing on the proposed improvement, if the written remonstrances represent less than the amount of property required to defeat the proposed improvement, if such an improvement is one that can be remonstrated against, then on the basis of such hearing of written remonstrances and oral objections, if any, the district board may, by motion, at the time of the hearing or within 60 days thereafter, order the improvement to be carried out in accordance with the resolution, or the district board may, on its own motion, abandon the improvement.

(2) After the public hearing on the proposed improvement and after the district board has moved to proceed with the improvement, it may pass an ordinance assessing the various lots, parcels of land or parts thereof, to be specially benefited with their apportioned share of the cost of the improvement; but the passage of an assessment ordinance may be delayed until the contract for the work is let, or until the improvement is completed and the total cost thereof is determined.