Neb. Rev. Stat. §§ 76-717
Within thirty days after the filing of such notice of appeal, the county judge shall prepare and transmit to the clerk of the district court a duly certified transcript of all proceedings had concerning the parcel or parcels of land as to which the particular condemnee takes the appeal upon payment of the fees provided by law for preparation thereof. When notice of appeal is filed by both the condemner and the condemnee, such transcript shall be prepared only in response to the first notice of appeal. The transcript prepared in response to the second notice of appeal shall contain only a copy of such notice and the proceedings shall be filed in the district court as a single cause of action.
The filing of the notice of appeal shall confer jurisdiction on the district court. The first party to perfect an appeal shall file a petition on appeal in the district court within fifty days after the filing of the notice of appeal. If no petition is filed, the court shall direct the first party to perfect an appeal to file a petition and impose such sanctions as are reasonable. The appeal shall be tried de novo in the district court. Such appeal shall not delay the acquisition of the property and placing of same to a public use if the condemner shall first deposit with the county judge the amount assessed by the appraisers.
Neb. Rev. Stat. §§ 76-717