Neb. Rev. Stat. § 31-112: Neb. Rev. Stat. § 31-112

At any time before the day set for hearing, after persons are notified as provided in section 31-110 , any person or corporation whose lands are taken or affected in any way by the improvement may make application to the commissioners in writing for compensation and damages, and a failure to make such application shall be held a waiver of all rights thereto.