The height regulations prescribed herein shall not apply to grain elevators, television and radio towers, church spires, belfries, monuments, tanks, water and fire towers, stage towers or scenery lofts, cooling towers, ornamental towers and spires, chimneys, elevator bulkheads, smokestacks, conveyors and flagpoles, provided the height of these structures does not violate any ordinance of the City of Chaffee.