03/09/1983 P&Z Minutes - Laserfiche WebLink

Home Search

• • 1005.07 AIRPORT ZONING Subdivision 1. Airspace Obstruction Zoning (1) AIRSPACE ZONES. In order to carry out the purpose of this Ordinance as set forth above, the following airspace zones are hereby established: Primary Zone, Horizontal Zone, Conical Zone, Approach Zone, and Transitional Zone, and whose locations and dimensions are as follows: (2) PRIMARY ZONE: All that land which lies directly under an imaginary primary surface longitudinally centered on a runway and: (A) Extending 200 feet beyond each end of the runway. The elevation of any point on the primary surface is the same as the elevation of the nearest point on the runway centerline. The width of the primary surface is 250 feet. (B) HORIZONTAL LINE: All that land which lies directly under an imaginary horizontal surface 150 feet above the established airport elevation, the perimeter of which is constructed by swinging arcs of specified radii from the center of each end of the primary surface of each runway and connecting the adjacent arcs by lines tangent to those arcs. The radius of each arc is 6,000 feet. (C) 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 to 1 for a horizontal distance of 4,000 feet as measured radially outward from the periphery of the horizontal surface. (D) 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 surface 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. The approach surface expands uniformly to a width of 2,500 feet at a distance of 10,000 feet to the periphery of the conical surface. (2) HEIGHT RESTRICTIONS. Except as otherwise provided in this Ordinance, and except as necessary and incidental to airport operations, no structure or tree shall be constructed, altered, maintained, or allowed to grow in any airspace zone so as to project above any of the imaginary airspace surfaces described in said Subsection (1) hereof. Where an area is covered by more than one height limitation, the more restrictive limitations shall prevail. (3) BOUNDARY LIMITATIONS. The municipality may regulate the location, size and use of building and the density of population in that portion of an airport haxard area under the approach zones for a distance not exceeding two miles from the airport boundary and may regulate height restriction zoning for a distance not to exceed one and one -half miles beyond the perimeter of the airport boundary.