Oregon Revised Statutes Highways, Roads, Bridges and Ferries § 384.110

The Department of Transportation may itself, or under a cooperative agreement with any county, construct the necessary approaches, ramps, docks, wharves, ferry slips or other such appurtenances as are necessary for the maintenance and operation of a ferry mentioned in ORS 384.105, or the department may require the construction of such approaches, ramps, docks, wharves, ferry slips and other necessary approaches by the licensee in the event that the ferry is operated under a license or permit.