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(g)Conlcal Zone - The conical zone is the area that commences at the periphery of the <br /> horizontal zone and extends outward therefrom a <br /> horizontal distance of 4,000 feet. The conical zone does <br /> not include the precision instrument approach zones <br /> and the transitional zones. <br /> <br />(2)Airport Zone Height Limitations - Except as otherwise provided in these regulations, no <br /> structure or tree shall be erected, altered, allowed to grow or <br /> be maintained in any of the zones created by these <br /> regulations to a height in excess of the applicable height limit <br /> herein established for such zone. Such applicable height <br /> limitations are hereby established for each of the zones in <br /> question, as follows: <br /> <br />(a)Runway Larger Than Utility Visual Approach Zone - Slopes 20 feet outward for each foot <br /> upward beginning at the end of and at the same <br /> elevation as the primary surface and extending to a <br /> horizontal distance of 5,000 feet along the extended <br /> runway center line. <br /> <br />(b)Runway Larger Than Utility With a Visibility Minimum Greater Than Three-Fourths <br /> Mile Nonprecislon Instrument Approach Zone - <br /> Slopes upward 34 feet horizontally for each foot <br /> vertically beginning at the end of and at the same <br /> elevation as the primary surface and extending to a <br /> horizontal distance of 10,000 feet along the extended <br /> runway center line. <br /> <br />(c)Runway Linger Than Utility With a Visibility Mhslmtun as Low as Three-Fourths Mile <br /> Nonprecision Instnunent Approach Zone - Slopes 34 <br /> feet outward for each foot upward beginning at the end <br /> of and at the same elevation as the primary surface and <br /> extending to a horizontal distance of 10,000 feet along <br /> the extended runway center line. <br /> <br />(d)Precision Instrument Runway Approach Zone - Slopes upward 50 feet horizontally for <br /> each foot vertically beginning at the end of and at the <br /> sa.me elevation as the primary surface and extending to <br /> a horizontal distance of 10,000 feet along the extended <br /> runway center line, then at a slope of 40:1 for an <br /> additional 40,000 feet. <br /> <br />(e)Transitional Zones - Slopes upward and outward seven feet horizontally for each foot <br /> vertically begi~ning at all the sides of and at the same <br /> elevation as the primary surface and the approach <br /> zones and extending to a height of 150 feet above the <br /> airport elevation, or 840 feet above mean sea level In <br /> addition, there are established height limits sloping <br /> upward and outward seven feet horizontally for each <br /> foot vertically beginning at the sides of and at the same <br /> elevation as the approach zones and extending to <br /> where they intersect the conical surface. Where the <br /> precision instrument run approach zone projects <br /> <br /> <br />