Oregon Revised Statutes Small Watercraft § 830.160

In addition to any other authority to promote safe boating pursuant to this chapter, the State Marine Board may cause the removal of any obstruction consisting of logs, rocks or other debris resulting from natural causes from the waters of this state if the board finds the obstruction to be an extraordinary hazard to boating safety. The board may pay the cost of such removal from amounts reserved therefor in the account created by ORS 830.140.