Airport Elevation. The airport elevation is hereby established as 565 feet above sea level.

Primary Surface Zone. The primary surface zone is centered longitudinally on the center line of the runway and extends 200 feet beyond the end of said runway. The elevation of any point on the primary surface is the same as the elevation of the nearest point of the runway center line. As such, the primary surface zone is also established at 565 feet above sea level.

Approach Surface Zone. The approach surface zone is centered longitudinally on the extended runway center line and extends outward and upward from each end of the primary surface zone. The approach surface zone is applied to each end of the runway based on the planned approach. The inner edge of the approach surface zone is the same width as the primary surface zone and expands uniformly to a width of 1,250 feet. The approach surface zone extends for a horizontal distance of 5,000 feet from the primary surface zone, and upward at a slope of 20 horizontal to one vertical. As such, approach surface zone extends from an elevation of 565 feet above sea level at the primary surface zone to an elevation of 815 feet above sea level at the point 5,000 feet from the primary surface zone.

Horizontal Surface Zone. The perimeter of the horizontal surface zone is constructed by swinging arcs of 5,000 feet radii from the center of each end of the surface of the runway and by connecting said arcs by drawing lines tangent to those arcs. The horizontal surface zone is established beneath the horizontal surface to a height of 150 feet above the airport elevation. As such, the horizontal surface zone is established at an elevation of 715 feet above sea level.

Conical Surface Zone. The conical surface zone is established at the periphery of the horizontal surface and extends outward therefrom a distance of 4,000 feet. The conical surface zone extends upward in all directions from the horizontal surface zone at a slope of 20 horizontal to one vertical. As such, the conical surface zone extends from an elevation of 715 feet above sea level at the horizontal surface zone to 915 feet above sea level at the point 4,000 feet from the horizontal surface zone.

Approach Surface Zone. All uses in the underlying zoning district shall be permitted in accordance with the bulk, area, and performance standards associated with said uses unless otherwise indicated herein.

Horizontal Surface Zone. All uses in the underlying zoning district shall be permitted in accordance with the bulk, area, and performance standards associated with said uses unless otherwise indicated herein.

Conical Surface Zone. All uses in the underlying zoning district shall be permitted in accordance with the bulk, area, and performance standards associated with said uses unless otherwise indicated herein.

Building height or tree height that extends into the airport surface zones.

Electrical interference with navigational signals or radio communication between the airport and the aircraft.

Lighting interference making it difficult for pilots to distinguish between airport lights and others.

Impairment to visibility as a result of glare in the eyes of pilots using the airport or in the vicinity of the airport.

Attraction of birds and creation of bird strike hazards.

In any way endanger or interfere with the landing, takeoff, or maneuvering of aircraft intending to use the airport.

The regulations of this section shall not be construed to require the removal, lowering, or other change in any structure or tree not conforming to the requirements of this section as of the effective date of this section, or otherwise interfere with the continuance of any nonconforming use, except as provided herein.

Nothing contained herein shall require any change in the construction, alteration, or intended use of any structure, the construction or alteration of which has begun prior to the effective date of this section.

Before any nonconforming structure may be replaced, substantially altered, or rebuilt, or before any nonconforming tree may be allowed to grow higher or replanted, a zoning permit must be secured from Carroll Valley Borough authorizing such change. No zoning permit shall be granted that would allow the establishment or creation of any obstruction or permit a nonconforming use, structure, or tree to become a greater hazard to air navigation than it was on the effective date of this section or any amendments thereto or than it was when the application for a zoning permit was made.

Nonconforming Uses Abandoned or Destroyed. Whenever the Zoning Officer determines that a nonconforming tree or structure has been abandoned or more than 80% torn down, physically deteriorated, or decayed, no zoning permit shall be granted that would allow such structure or tree to exceed the applicable height limit or otherwise deviate from this section.