Wash. Rev. Code § 79.110.220
On the filing of the plat and field notes, as provided in RCW 79.110.210, the land applied for and any improvements included in the right-of-way applied for, if any, shall be appraised as in the case of an application to purchase state lands. Upon full payment of the appraised value of the state-owned aquatic land applied for, or upon payment of an annual rental when the department deems a rental to be in the best interests of the state, and upon full payment of the appraised value of any danger trees and improvements, if any, the department shall issue to the applicant a certificate of the grant of right-of-way stating the terms and conditions and shall enter the certificate in the abstracts and records in the department's Olympia office, and thereafter any sale or lease of the lands affected by the right-of-way shall be subject to the easement of the right-of-way. However, should the person or the United States of America securing the right-of-way ever abandon the use of the right-of-way for the purposes for which it was granted, the right-of-way shall revert to the state, or the state's grantee.
RCW 79.110.220