Lake County Zoning Code § 39.5 Establishment of airport

(a) Airport zones: In order to carry out the provisions of this Article, there are hereby created and established certain zones which include all of the land lying beneath the approach surfaces, transitional surfaces, horizontal surfaces, and conical surfaces as they apply to the County’s airports. Said airport zoning shall be adopted in the manner provided in Government Code Section 50485.5. Such zones are shown on the Official Airport Zoning Maps (sectional district map) as created by County

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Ordinance #982 adopted in August 1976, for Lampson Airport and Ordinance #887 adopted on April 26, 1976, for Pearce Airport and made a part hereof. An area located in more than one (1) 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:

Non-instrument approach zone: The inner edge of this approach zone coincides with the width of the primary surface and is two hundred fifty (250) feet wide. The approach zone expands outward uniformly to a width of two thousand (2,000) feet from the primary surface. Its centerline is the continuation of the centerline of the runway.
Transitional zone: The transitional zone is the area beneath the transitional surface.
Horizontal zone: The horizontal zone is established by swinging arcs of five thousand (5,000) feet radii from the center of each end of the primary surface of each runway and connecting the adjacent arcs by drawing lines tangent to those arcs. The horizontal zone does not include the approach and transitional zones.
Conical zone: The conical zone is established as the area that commences at the periphery of the horizontal zone and extends outward therefrom a horizontal distance of three thousand (3,000) feet.

39.6 Airport zone height limitations: Except as otherwise provided in this Article, no structure shall be erected, altered, or maintained, and no tree shall be allowed to grown in any zone created by this Article to a height in excess of the applicable height limit herein established for such zone. Such applicable height limitations are hereby established for each of the zones in question as follows:
- (a) Utility runway visual approach zone: Slopes twenty (20) feet outward for each foot upward beginning at the end of and at the same elevation as the primary surface and extending to a horizontal distance of five thousand (5,000) feet along the extended runway centerline.
(b) Transitional zones: Slope seven (7) feet outward for each foot upward beginning at the sides of and at the same elevation as the primary surface and the approach surface, and extending to a height of one hundred fifty (150) feet above the airport elevation which is 1,365 feet above mean sea level for Lampson and one thousand three hundred and eighty five (1,385) feet above mean sea level for Pearce. In addition to the foregoing, there are established height limits sloping seven (7) feet outward for each foot upward beginning at the sides of and at the same elevation as the approach surface, and extending to where they intersect the conical surface.
- (c) Horizontal zone: Established at one hundred fifty (150) feet above the airport elevation.

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(d) Conical zone: Slopes twenty (20) feet outward for each foot upward beginning at the periphery of the horizontal zone and at one hundred (150) feet above the airport elevation and extending to a height of three hundred fifty (350) feet above the airport elevation.
(e) Excepted height limitations: Nothing in this Article shall be construed as prohibiting the construction or maintenance of any structure, or growth of any tree to a height up to fifty (50) feet above the surface of the land.