Not Expansion of Nonconforming Use. Towers that are constructed, and antennas that are installed, in accordance with the provisions of this section shall not be deemed to constitute the expansion of a nonconforming use or structure.

Preexisting Towers. Preexisting towers shall be allowed to continue their usage as they presently exist. Routine maintenance (including replacement with a new tower of like construction and height) shall be permitted on such preexisting towers. New construction other than routine maintenance on a preexisting tower shall comply with the requirements of this section.

Rebuilding Damage or Destroyed Nonconforming Towers or Antennas. Notwithstanding subsection 31-28.9, bona fide nonconforming towers or antennas that are damaged or destroyed may be rebuilt without having to first obtain administrative approval or a conditional use permit and without having to meet the separation requirements specified in subsection 31-28.7b4 and 31-28.7b5. The type, height and location of the tower on site shall be of the same type and intensity as the original facility approval. Building permits to rebuild the facility shall comply with the then applicable building codes and shall be obtained within one hundred eighty (180) days from the date the facility is damaged or destroyed. If no permit is obtained or if the permit expires, the tower or antenna shall be deemed abandoned as specified in subsection 31-28.9.