Neb. Rev. Stat. § 2-259

Pursuant to a request by a county agricultural society, the county board of any county may levy an additional levy of three and five-tenths cents on each one hundred dollars of taxable valuation, or any part thereof, for the purpose of acquiring an interest in real property to comprise a portion or all of the county fairgrounds, for the purpose of capital construction on and renovation, repair, improvement, and maintenance of the county fairgrounds, over and above the operational tax levy authorized in section 2-257 , or for the purpose of purchasing equipment. Such levy shall not exceed the amount actually required for such acquisition or work and shall be subject to section 77-3443 .