(A) Except as otherwise provided in this section, no structure or tree shall be erected, altered or allowed to grow or be maintained in any zone created by this division to a height in excess of the height limit established for that zone.
(B) Such height limitations are established for each of the zones in Table 153.0462(A) below.
(C) Where an area is covered by more than one height limitation, the more restrictive limitation shall prevail.
Zone | Definition | Height |
Conical zone | A conical zone shall be the area that commences at the periphery of the horizontal zone and extends outward therefrom a distance of 5,000 feet. The conical zone does not include the instrument approach zones and transition zones. | 1 foot in height for each 20 feet of horizontal distance beginning at the periphery of the horizontal zone, extending to a height of 400 feet above the airport elevation. |
Horizontal zone | A horizontal zone shall be the area within a circle with its center at the airport reference point and having a radius of 7,000 feet. The horizontal zone does not include the instrument and non-instrument approach zones and the transition zones. | 150 feet above the airport elevation or a height of 1,175 feet above mean sea level. |
Instrument approach zone | An instrument approach zone at each end of the instrument runways for instrument landings and takeoffs. The instrument approach zones shall have a width of 1,000 feet at a distance of 200 feet beyond each end of the runway, widening uniformly to a width of 16,000 feet at a distance of 50,200 feet beyond each end of the runway, its centerline being the continuation of the centerline of the runway. | 1 foot in height for each 50 feet in horizontal distance, beginning at a point 200 feet from and at the centerline elevation of the end of the instrument runway and extending to a distance of 10,200 feet from the end of the runway; thence, 1 foot in height for each 40 feet in horizontal distance to a point 50,200 feet from the end of the runway. |
Non-instrument | A non-instrument approach zone at each end of all approach zone non-instrument runways for non- instrument landings and take-offs. The non-instrument approach zone shall have a width of 500 feet at a distance of 200 feet beyond each end of the runway, widening uniformly to a width of 2,500 feet at a distance of 10,200 feet beyond each end of the runway, its centerline being the continuation of the centerline of the runway. | 1 foot in height for each 40 feet in horizontal distance, beginning at a point 200 feet from and at the centerline elevation of the end of the non-instrument runway and extending to a point 10,200 feet from the end of the runway. |
Transition zones | Transition zones are adjacent to each instrument and non-instrument runway and approach zone, as indicated on the Airport Zoning Map. Transition zones symmetrically located on either side of runways have variable widths as shown on the Airport Zoning Map. Transition zones extend outward from a line 250 feet on either side of the centerline of the non-instrument runway, for the length of such runway, plus 200 feet on each end; and 500 feet on either side of the centerline of the instrument runway, for the length of such runway, plus 200 feet on each end, and are parallel and level at such runway centerlines. The transition zones along such runways slope upward and outward 1 foot vertically for each 7 feet horizontally to the point where they intersect the surface of the horizontal zone. Further, transition zones shall be adjacent to both instrument and non-instrument approach zones for the entire length of the approach zones. These transition zones have variable widths, as shown on the Airport Zoning Map. Such transition zones flare symmetrically with either side of the runway approach zones from the base of such zones and slope upward and outward at the rate of 1 foot vertically for each 7 feet horizontally to the points where they intersect the surfaces of the horizontal and conical zones. Furthermore, transition zones shall be adjacent to the instrument approach zone where it projects through and beyond the limits of the conical zone, extending a distance of 5,000 feet, measured horizontally from the edge of the instrument approach zones at right angles to the continuation of the centerline of the runway. | 1 foot in height for each 7 feet in horizontal distance, beginning at any point 250 feet normal to and at the elevation of the centerline of non-instrument runways, extending 200 feet beyond each end, and 500 feet normal to and at the elevation of the centerline of the instrument runway, extending 200 feet beyond each end, extending to a height of 150 feet above the airport elevation, which is 1,175 feet above mean sea level. In addition to the foregoing, there shall be height limits of 1 foot vertical height for each 7 feet horizontal distance, measured from the edges of all approach zones for the entire length of the approach zones and extending upward and outward to the points where they intersect the horizontal or conical surfaces. Further, where the instrument approach zone projects through and beyond the conical zone, a height limit of 1 foot for each 7 feet of horizontal distance shall be maintained beginning at the edge of the instrument approach zone and extending a distance of 5,000 feet from the edge of the instrument approach zone measured normal to the centerline of the runway extended. |