Wash. Rev. Code § 81.53.170
Upon the petition of any party to a proceeding before the commission, any finding or findings, or order or orders of the commission, made under color of authority of this chapter, except as otherwise provided, may be reviewed in the superior court of the county wherein the crossing is situated, and the reasonableness and lawfulness of such finding or findings, order or orders inquired into and determined, as provided in this title for the review of the commission's orders generally. Appellate review of the judgment of the superior court may be sought in like manner as provided in said utilities and transportation commission law for review by the supreme court or the court of appeals.
RCW 81.53.170
Severability-1988 c 202: See note following RCW 2.24.050.