[Amended 10-22-2002]
The height limitations of this chapter shall not apply to:
A.
Spires, belfries, cupolas, domes, chimneys, observation towers. Spires, belfries, cupolas, domes, chimneys, observation towers and similar structures shall not contain livable space and shall not exceed the maximum height in the applicable zoning district by more than 10%.
B.
The height of water towers, public monuments, transmission towers, derricks, conveyors, flagpoles, radio towers, cellular phone towers, television towers and television aerials may be no higher than such structure's linear distance from the nearest lot line. No television or radio aerial may be erected whose height above the roof or other permanent structure to which it is attached is greater than the horizontal distance from such aerial or any part thereof to any overhead electric transmission line carrying more than 220 volts.
C.
Manufacturing processes. The height limitations of this chapter shall not apply to bulkheads, elevator penthouses, monitors, fire towers, hose towers, cooling towers, grain elevators or other structures where a manufacturing process requires greater height, provided that such structures above the limiting heights specified in this chapter shall not in aggregate occupy more than 30% of the horizontal area of the roof, and are set back one foot from all legally established setback lines for each additional foot in height from the specified height.