It shall not be unlawful for anyone to fish from the banks of the watercourse below the Duke Power Company Wateree Dam in Kershaw County within two hundred feet from the dam, but it shall be unlawful to fish from any structure or abutment erected by Duke Power Company, and Duke Power Company shall not be liable for any injury sustained by any fisherman fishing within the two hundred foot prohibited zone. Anyone violating the provisions of this section shall be fined not less than twenty-five dollars nor more than one hundred dollars or imprisoned for not more than thirty days, or both.