87.17 Trespass, penalty. Any person who shall willfully, maliciously or wantonly destroy, injure, remove, meddle or tamper with any portion of the improvements constructed pursuant to ss. 87.01 to 87.17, whether during construction or after completion of the same, or shall willfully, maliciously or wantonly obstruct, interfere with or hamper the flood control board or any of its assistants, agents, servants or employees, or any contractor employed by it in the work of constructing, repairing, reconstructing, operating or maintaining the same, shall be guilty of a misdemeanor and upon conviction shall be punished by imprisonment in the county jail not more than one year, or by fine not exceeding $1,000, or both.