Neb. Rev. Stat. §§ 16-210
A city of the first class may prevent and remove all encroachments into and upon all sidewalks, streets, avenues, alleys, and other city property, and prevent and punish all horseracing, fast driving or riding in the streets, highways, alleys, bridges or places in the city, and all games, practices or amusements therein likely to result in damage to any person or property. It may regulate, prevent, and punish the operation of vehicles or the riding, driving or passing of animals over or upon any streets or sidewalks of the city; regulate and prevent the use of streets, sidewalks, and public grounds for signs, sign posts, awnings, telegraph, telephone or other poles, racks, bulletin boards, and the posting of handbills and advertisements; regulate traffic and sale upon the streets, sidewalks and public places; punish and prohibit cruelty to animals; and regulate and prevent the moving of buildings through or upon the streets.
Neb. Rev. Stat. §§ 16-210