The Harbor Engineer shall remove all deposits from the harbor and docks into which said deposits empty, whenever he may deem it right and proper to do so without serious interference with the main work of harbor improvement. City Code, 1927, art. 15, §33 1950, art. 11, §38 1966, art. 10, §38 1976/83, art. 10, §38 Ord. 09-293