Any corporation may change the grade or location of its road, or canal, not departing from the general route specified in the articles of incorporation, for the purpose of avoiding annoyances to public travel or dangerous or deficient curves or grades, or unsafe or unsubstantial grounds or foundation, or for other like reasonable causes, and for the accomplishment of such change, shall have the same right to enter upon, examine, survey and appropriate the necessary lands and materials, as in the original location and construction of such road or canal.
RCW 81.36.050