(A) In order to carry out the purpose of this chapter, as set forth above, the following airspace zones are hereby established: primary zone, horizontal zone, conical zone, approach zone, precision instrument approach zone and transitional zone.
(B) The locations and dimensions of these zones are as follows:
(1) Primary zone. All that land which lies directly under an imaginary primary surface longitudinally centered on the runway and extending 200 feet beyond each end of Runway 15-33 and coinciding with each end of Runway 8-26. The elevation of any point on the primary surface is the same as the elevation of the nearest points on the runway centerline. The width of the primary surface is 500 feet for Runway 15-33 and 250 feet for Runway 8-26;
(2) Horizontal zone. All that land which lies directly under an imaginary horizontal surface 150 feet above the established airport elevation, or a height of 1,212 feet above mean sea level, the perimeter of which is constructed by swinging arcs of specified radii from the center of each end of the primary surface of the runway and connecting the adjacent arcs by lines tangent to those arcs. The radius of each arc is 5,000 feet for Runway 15-33 and Runway 8-26;
(3) Conical zone. All that land which lies directly under an imaginary conical surface extending upward and outward from the periphery of the horizontal surface at a slope of 20:1 for a horizontal distance of 4,000 feet as measured radially outward from the periphery of the horizontal surface;
(4) Approach zone. All that land which lies directly under an imaginary approach surface longitudinally centered on the extended centerline at each end of a runway. The inner edge of the approach is at the same width and elevation as, and coincides with, the end of the primary surface. The approach surface inclines upward and outward at a slope of 20:1 for Runway 15-33 and 8-26. The approach surface expands uniformly to a width of 2,000 feet for Runway 15-33 at a distance of 5,000 feet to the periphery of the conical surface. The approach surface expands uniformly to a width of 1,250 feet for Runway 8-26 at a distance of 5,000 feet to the periphery of the conical surface; and
(5) Transitional zone. All that land which lies directly under an imaginary surface extending upward and outward at right angles to the runway centerline and centerline extended at a slope of 7:1 from the sides of the primary surfaces and from the sides of the approach surfaces until they intersect the horizontal surface or the conical surface.
(2004 Code, § 151.15) (Ord. passed 1-12-1984; Ord. 20-819, passed 8-18-2020)