All streets within the city, and those which are annexed, shall be numbered by appropriate numbers north and south of Center Street and east and west of Main Street, and may carry a street name. In the event the street is named, a street sign must be provided, and the street sign shall also be designated by street number. The street name will be in smaller letters than the street number, so that the street number is more prominent than the street name and so that the sign will be established and constructed to be in compliance with state law. (Ord., 6-9-1999; amd. 2007 Code)