Wash. Rev. Code § 43.21A.616
For the purpose of carrying out any or all of the powers herein granted the director shall have the power of eminent domain for the acquisition of either real or personal property used or useful in connection with the construction of facilities authorized hereunder. Actions in eminent domain pursuant to RCW 43.21A.610 through 43.21A.642 shall be brought in the name of the state in any court of competent jurisdiction under the procedure set out in chapter 8.04 RCW. The director may institute condemnation proceedings in the superior court of any county in which any of the property sought to be condemned is located or in which the owner thereof does business, and the court in any such action shall have jurisdiction to condemn property wherever located within the state. It shall not be necessary to allege or prove any offer to purchase or inability to agree with the owners thereof for the purchase of any such property in said proceedings. Upon the filing of a petition for condemnation, as provided in this section, the court may issue an order restraining the removal from the jurisdiction of the state of any personal property sought to be acquired by the proceedings during the pendency thereof. The court shall further have the power to issue such orders or process as shall be necessary to place the director into possession of any property condemned.
RCW 43.21A.616