Wash. Rev. Code § 79.36.550
In order to obtain the benefits of the grant provided for in RCW 79.36.540, the irrigation district, irrigation company, association, individual, or the United States of America, constructing or proposing to construct such irrigation ditch or pipe line for irrigation, or the diking and drainage district or diking and drainage improvement district constructing or proposing to construct any dike or drainage ditch, shall file with the department a map accompanied by the field notes of the survey and location of the proposed irrigation ditch, pipe line, dike, or drainage ditch, and shall pay to the state as hereinafter provided, the amount of the appraised value of the said lands used for or included within such right-of-way. The land within said right-of-way shall be limited to an amount necessary for the construction of the irrigation ditch, pipe line, dike, or drainage ditch for the purposes required, together with sufficient land on either side thereof for ingress and egress to maintain and repair the same.
RCW 79.36.550
Intent-2003 c 334: See note following RCW 79.02.010.