Oregon Revised Statutes Highways, Roads, Bridges and Ferries § 374.315

All construction under the permits issued under ORS 374.309 and 374.310 shall be under the supervision of the granting authority and at the expense of the applicant. After completion of the construction of the particular approach road, facility, thing or appurtenance, they shall be maintained at the expense of the applicant and in accordance with the rules and regulations adopted pursuant to ORS 374.309 and 374.310.