This part shall not be construed as repealing any provisions of other statutes prescribing a method of procedure for the condemnation of private property, but as supplementary thereto and cumulative thereof in cases in which the state or any county or the United States is concerned, and is intended to make simpler and more effective the method of condemnation in those cases where conflicting interests or doubtful questions render a judicial supervision of the procedure desirable. In all particulars not otherwise herein specially provided for, the court shall conform its procedure as nearly as may be to the provisions of the statute and the same shall remain in force.