12-3-4: HEIGHT LIMITATIONS:
   A.   Generally: Except as otherwise provided in this chapter, no structure that penetrates the zones may be erected, created, established, replaced, rebuilt, altered, allowed to grow, or replanted in any zone described in section 12-3-3 of this chapter to a height in excess of the height limits established by this section for the respective zones.
   B.   Height And Hazard Zoning Map: No obstruction shall be erected, created, established, planted, or allowed to grow in any imaginary surface area, in excess of height limits established under 14 CFR 77 regulations and the Dubuque Regional Airport height and hazard limitation map. These height limitations are continually updated and are available from airport administration. (Ord. 51-14, 8-4-2014)