Oregon Revised Statutes Highways, Roads, Bridges and Ferries § 371.075

Upon the petition of 12 or a majority of the resident freeholders of any road district, approved by the roadmaster, praying for a change in grade or other extensive improvements to a public road as defined in ORS 368.001, the county court shall instruct the county surveyor, engineer or roadmaster to proceed as soon as convenient to the place named in the petition and make such investigations, surveys or estimates as the county court requires and report the same in writing to the county court, setting forth all material matters necessary to fully advise the county court. If the county court determines in favor of such improvement, it shall grant the petition and proceed to make the change in grade or improvements.