It shall be unlawful for anyone to enter in a boat or any other boating device within the watercourse above the Duke Power Company Wateree Dam in Kershaw County for a distance of one hundred feet. The department shall place appropriate signs or markers on each side of the watercourse indicating the zoned area for boats. Nothing in this section or § 50-19-1820 shall be construed to prohibit fishing in waters within one hundred feet of the dam from a boat which is further than one hundred feet from the dam. 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.