Section 48.40  Height Limitations

Except as otherwise provided in these zoning regulations, no structure or tree shall be erected, altered, allowed to grow, or maintained in any surface created by these zoning regulations to a height in excess of the height limit herein established for such zone.  Such height limitations are hereby established for each of the zones in question as follows:

a)         Instrument Approach Zone – One (1) foot in height for each fifty (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 the distance of 10,200 feet from the end of the runway, thence one foot in height for each forty (40) feet in horizontal distance to a point 50,200 feet from the end of the runway.

b)         Non-Instrument Approach Zones – One (1) foot in height for each forty (40) feet 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.

c)         Transition Zones – These surfaces extend outward and upward one (1) foot in height for each seven (7) feet in horizontal distance perpendicular to the runway centerline until they meet the horizontal or conical surfaces and beginning at a point 250 feet on either side and normal to and at the elevation of the centerline of non-instrument runways, extending 200 feet beyond each end thereof, and 500 feet on either side and normal to and at the elevation of the centerline of the instrument runway, extending 200 feet beyond each end thereof, extending upward to a maximum height of 150 feet above the established airport elevation which is +540 feet above mean sea level. In addition to the foregoing, there are established height limits of one (1) foot vertical height for each seven (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 and conical surfaces. Further, where the instrument approach surface projects through and beyond the conical zone, a height limit of one (1) foot for each seven (7) feet of horizontal distance shall be maintained beginning at the edge of the instrument approach zone and extending a distance of 5000 feet from the edge of the instrument approach zone measured normal to the continuation of the centerline of the runway extended.

d)         Horizontal Zone – The horizontal zone shall have an elevation of 150 feet above the established airport elevation (540 feet MSL) or an elevation of 690 feet above mean sea level.

e)         Conical Zone – The conical zone is one (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 established airport elevation which is 540 feet above mean sea level.