No person under the influence of liquor shall be allowed on any vessel, barge, or scow on which explosives are being loaded or from which unloaded, nor will they be permitted to approach any vessel which is being loaded or unloaded. City Code, 1927, art. 15, §80(2nd sen.) 1950, art. 11, §82(2nd sen.) 1966, art. 10, §81(2nd sen.) 1976/83, art. 10, §81(2nd sen.) Ord. 13-336 Ord. 76-052