§ 3-14. Airport zone height limitations.

(a)

Except as otherwise provided in this article, no structure shall be erected, altered or maintained, and no tree shall be allowed to grow 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:

(1)

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.

(2)

Utility runway nonprecision instrument 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.

(3)

Runway larger than utility 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.

(4)

Runway larger than utility with a visibility minimum greater than three-quarter (¾) mile nonprecision instrument approach zone: Slopes thirty-four (34) 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 ten thousand (10,000) feet along the extended runway centerline.

(5)

Runway larger than utility with a visibility minimum as low as three-quarter (¾) mile nonprecision instrument approach zone: Slopes thirty-four (34) feet 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 ten thousand (10,000) feet along the extended runway centerline.

(6)

Precision instrument runway approach zone: Slopes fifty (50) 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 ten thousand (10,000) feet along the extended runway centerline; thence slopes upward forty (40) feet horizontally for each foot vertically to an additional horizontal distance of forty thousand (40,000) feet along the extended runway centerline.

(7)

Transitional zones: Slopes 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 one hundred fifty-four (154) feet above mean sea level. 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. Where the precision instrument runway approach zone projects beyond the conical zone, 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 a horizontal distance of five thousand (5,000) feet measured at ninety (90) degree angles to the extended runway centerline.

(8)

Horizontal zone: Established at one hundred fifty (150) feet above the airport elevation or at a height of one hundred fifty-four (154) feet above mean sea level.

(9)

Conical zone: Slopes twenty (20) feet outward for each foot upward beginning at the periphery of the horizontal zone and at one hundred fifty (150) feet above the airport elevation and extending to a height of three hundred fifty (350) feet above the airport elevation.

(b)

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.

(Code 1961, § 2A-24)