§ 4. Zones

In order to carry out the provisions of these regulations, there are hereby created and established certain zones which include all of the land lying beneath the approach surfaces, conical surface, horizontal surface, and transitional surfaces as they apply to the airport. Such surfaces are shown on the Houston Executive Airport Hazard Zoning Map prepared by Garver Engineers, dated May 2008, which is incorporated in and made a part of these regulations. An area located in more than one of the following zones is considered to be only in the zone with the more restrictive height limitation. The various zones are hereby established and defined as follows:

A.

Approach Zones. Approach zones are hereby established beneath the approach surfaces at each end of Runway 18/36 at the airport for an other than utility runway. The approach surface shall have an inner edge width of 550 feet, which coincides with the width of the primary surface, at a distance of two-hundred (200) feet beyond each runway end, widening thereafter uniformly to a width of 16,000 feet at a horizontal distance of 50,000 feet beyond the end of the primary surface. The centerline of the approach surface is the continuation of the centerline of the runway.

B.

Conical Zone. A conical zone is hereby established beneath the conical surface at the airport which extends outward from the periphery of the horizontal surface for a horizontal distance of four-thousand (4,000) feet.

C.

Horizontal Zone. A horizontal zone is hereby established beneath the horizontal surface at the airport which is a plane one-hundred fifty (150) feet above the established airport elevation, the perimeter of which is constructed by swinging arcs of ten-thousand (10,000) feet radii from the center of each end of the primary surface and connecting the adjacent arcs by lines tangent to those arcs.

D.

Transitional Zones. Transitional zones are hereby established beneath the transitional surfaces at the airport. Transitional surfaces, symmetrically located on either side of the runway, have variable widths as shown on the Houston Executive Airport Hazard Zoning Map prepared by Garver Engineers, dated May 2008, which is incorporated in and made a part of these regulations. Transitional surfaces extend outward perpendicular to the runway centerline and the extended runway centerline from the periphery of the primary surface and the approach surfaces to where they intersect the horizontal surface. Where the precision instrument runway approach surface projects through and beyond the conical surface, there are hereby established transitional zones beginning at the sides of and at the same elevation as the approach surface and extending for a horizontal distance of five thousand (5,000) feet as measured perpendicular to the extended runway centerline.