Article V. District Use Regulations

Sec. 31-84. District AH - Airport Hazard District

A. INTENT It is hereby found that an airport hazard endangers the lives and 

property users of Airports within the City of Marshall and property or occupants of land in its vicinity, and in effect reduces the size of the area available for the landing, takeoff and maneuvering of aircraft, thus tending to destroy or impair the utility of said Airports and the public investment therein. Accordingly, it is declared:

1. That the creation or establishment of an airport hazard is a public nuisance.

2. That it is necessary in the interest of the public health, public safety and general welfare that the creation or establishment of airport hazards be prevented.

3. That the prevention of these hazards should be accomplished, to the extent legally possible, by the exercise of the police power without compensation. Districts now existing or hereafter created shall be known and may be cited at "Airport Hazard Zoning District" - "AH".

 

B. DEFINITIONS As used in this Section, unless the context otherwise requires:

1. AIRPORT - Any airport now existing or hereafter crated within the City of Marshall.


2. AIRPORT ELEVATION - The highest point of an airport's usable landing area measured in feet from mean sea level.

 

3. AIRPORT HAZARD - Any structure or object of natural growth located on or in the vicinity of a public airport, or any use of land near such airport, which obstructs the airspace required for the flight of aircraft in landing or takeoff at such airport or is otherwise hazardous to such landing or take-off of aircraft.

 

4. STRUCTURE - An object constructed or installed by man, including but without limitation, buildings, towers, smokestacks, earth formation and overhead transmission lines.

 

5. TREE - Any object of natural growth.

 

6. NONCONFORMING USE - Any pre-existing structure, object of natural growth, or use of land which is inconsistent with the provisions of this Section or an amendment thereto.

 

7. HEIGHT - For the purpose of determining the height limits in all zones set forth in the Section and shown on the zoning map, the datum shall be mean sea level elevation unless otherwise specified.

 

8. PERSON - An individual, firm, partnership, corporation, company, association, joint stock association or governmental entity. It includes a trustee, receiver, assignee or similar representative of any of them.

 

9. RUNWAY - A defined area on an airport prepared for landing and takeoff of aircraft along its length.

 

10. VISUAL RUNWAY - A runway intended solely for the operation of aircraft using visual approach procedures and no instrument designation indicated on an FAA approved airport layout plan, a military service's approved military airport layout plant or by any planning document submitted to the FAA by competent authority.

 

11. UTILITY RUNWAY - A runway that is constructed for and intended to be used by propeller driven aircraft of 12,500 pounds maximum gross weight and less.

 

12. NON-PRECISION INSTRUMENT RUNWAY - A runway having anexisting instrument approach procedure utilizing air navigation facilities with only horizontal guidance, or area type navigation equipment, for which a straight-in nonprecision instrument approach procedure has been approved or planned, and for which no precision approach facilities are planned or indicated on an FAA planning document or military service's military airport planning document.

 

13. PRECISION INSTRUMENT RUNWAY - A runway having an existing instrument approach procedure utilizing an Instrument Landing System(ILS) or a Precision Approach Radar (PAR). It also means a runway for which a precision approach system is planned and is so indicated on an FAA planning document or military service's military airport planning document.

 

14. PRIMARY SURFACE - A surface longitudinally centered on a runway. When the runway has a specially prepared hard surface, the primary surface extends 200 feet beyond each end of that runway; but when the runway has no specially prepared hard surface or planned hard surface, the primary surface ends at each end of that runway. The width of the primary surface of a runway will be that width prescribed in Part 77 of the Federal Aviation Regulation (FAR) for the most precise approach existing or planned for either end of that runway. The elevation of any point on the primary surface is the same as the elevation of the nearest point on the runway centerline.

 

15. HELIPORT PRIMARY SURFACE - The area of the primary surface coincides in size and shape with the designated landing and takeoff area of a heliport (runway). This surface is a horizontal plane at the elevation of the established heliport elevation.

 

16. STOL PRIMARY SURFACE - An imaginary plane, 300 feet wide, centered on the runway, its length extends 100 feet beyond each runway end. The elevation of any point on the primary surface is the same as the elevation of the nearest point on the runway centerline.

 

17. APPROACH, TRANSITIONAL,HORIZONTAL AND CONICAL ZONES - These zones apply to the area under the approach, transitional, horizontal and conical surfaces defined in Sections 3 and 4.

 

C. AIRPORT ZONES There are hereby created and established certain zones which include all of the land lying within the approach zone, transitional zones, horizontal zones and conical zones as they apply to a particular airport. 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:
AH (1) Utility Runway Visual Approach and Non-Precision Instrument Approach Zone - The inner edge of this approach zone coincides with the width of the primary surface and is determined by the applicable distance in feet based on the primary surface width as set forth in FAR part 77, as amended. The approach zone expands outward uniformly to a width of 2,000 feet at a horizontal distance of 5,000 feet from the primary surface. Its centerline being the continuation of the centerline of the runway. 

AH (2) Runway Larger Than Utility With Visual Approach and Visibility Minimum As Low as 3/4 Mile Non-Precision Instrument Approach Zone - The inner degree of the approach zone coincides with the width of the primary surface and is 1,000 feet wide, The approach zone expands outward uniformly to a width of 4,000 feet at a horizontal distance of 10,000 feet from the primary surface. Its centerline being the continuation of the centerline of the runway.
AH (3) Precision Instrument Runway Approach Zone - The inner edge of this approach zone coincides with the width of the primary surface and is 1,000 feet wide, The approach zone expands outward uniformly to a width of 16,000 feet at a horizontal distance of 50,000 feet from the primary surface. Its centerline being the continuation of the centerline of the runway.
AH (4) Heliport Approach Zone - The inner edge of this approach zone coincides with the width of the primary surface and is 300 feet wide. The approach zone expands outward uniformly to a width of 3,400 feet at horizontal distance of 10,000 feet from the primary surface. Its centerline being the continuation of the centerline of the primary surface.
AH (5) Fixed Wing Transitional Zones - These zones are hereby established as the area beneath the transitional surfaces. These surfaces extend outward and upward at 90 degree angles to the runway centerline and the runway centerline extended at a slope of seven (7) feet horizontally for each foot vertically from the sides of the primary and approach surfaces to where they intersect the horizontal and conical surfaces. Transitional zones for those portions of the precision approach zones which project through and beyond the limits of the conical surface, extend a distance of 5,000 feet measured horizontally from the edge of the approach zones and at 90 degree angles to the extended runway centerline.
AH (6) Heliport VFR and IFR Transitional Zones - These zones extend outward from the sides of the primary surface and a portion of the sides of the approach zones a horizontal distance of 250 feet from the primary surface centerline and the extended primary surface centerline.
AH (7) Horizontal Zone - The horizontal zone is hereby established by swinging arcs of 5,000 feet radii for all runways designated utility or visual, and 10,000 feet radii for all other runways from the center of each end of the primary surface of each runway, and connecting the adjacent arcs by drawing lines tangent to hose arc. The horizontal zone does not include the approach and transitional zones.
AH (8) Conical Zone - The conical zone is hereby established as the area that commences at the periphery of the horizontal zone and extends outward there from a horizontal distance of 4,000 feet. The conical zone does not include the precision instrument approach zones and the transitional zones.

D. AIRPORT ZONE HEIGHT LIMITATIONS Except as otherwise provided in this section, no structure shall be erected, altered or maintained and no tree shall be allowed to grow in any zone created by this Section 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 and Non-Precision Instrument Approach Zone
AH (1) -
Slopes upward twenty (20) feet horizontally for each foot vertically beginning at the end of and at the same elevation as the primary surface and extending to a horizontal distance of 5,000 feet along the extended runway centerline.

2. Runway Larger than Utility with Visual Approach and Visibility Minimum as
Low as 3/4 Mile Non-Precision Instrument Approach Zone AH (2)
 - Slopes upward thirty-four (34) feet horizontally for each foot vertically beginning at the end of and at the same elevation as the primary surface and extending to a horizontal distance of 10,000 feet along the extended runway centerline.

3. Precision Instrument Runway Approach Zone AH (3) - Slopes upward fifty (50) feet horizontally for each foot vertically beginning at the end of and at the same elevation as the primary surface and extending to a horizontal distance of 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 40,000 feet along the extended runway centerline.

4. Heliport Approach Zones AH(4) - Slopes upward eight (8) feet horizontally for each foot vertically beginning at the end and at the same elevation as the primary surface, and extending t a distance of 4,000 feet along the extended primary surface centerline.

5. Fixed Wing Transitional Zones AH (5) - Slopes upward and outward seven (7) feet horizontally for each foot vertically beginning at the sides of and at the same elevation as the primary surface and the approach surface, and extending to a
height of 150 feet above the airport elevation. In addition to the foregoing, there are established height limits sloping upward and outward seven (7) feet horizontally for each foot vertically beginning at he sides 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, height limits sloping upward and outward seven (7) feet horizontally for each foot vertically shall be maintained beginning at the sides and at the same elevation as precision instrument runway approach surface,
and extending to a horizontal distance of 5,000 feet measured at 90 degree angles to the extended runway centerline.

6. Heliport Transitional Zones AH (6) - Slopes upward and outward two (2) feet horizontally for each foot vertically beginning at the sides of and at the same elevation as the primary surface and a portion of the sides of the approach and
extending a distance of 250 feet measured horizontally from and at 90 degree angles to the primary surface centerline and Heliport approach zone centerline.

7. Horizontal Zone AH (7) - One hundred and fifty (150) feet above the airport elevation.

8. Conical Zone AH (8) - Slopes upward and outward twenty (20) feet horizontally for each foot vertically beginning at the periphery of the horizontal zone and at one hundred and fifty (150) feet above the airport elevation and extending to a height of three hundred and fifty (350) feet above the airport elevation.

Where an area is covered by more than one (1) height limitation, the more re
strictive limitation shall prevail.


E. USE RESTRICTIONS Not withstanding any other provisions of this ordinance, no use may be made of land or water within any zone established by this Ordinance in such a manner as to created electrical interference with navigational signals or radio communication between the airport and aircraft, make it difficult for pilots to distinguish between airport lights and others, result in glare in the eyes of pilots using the airport, impair visibility in the vicinity of the airport or otherwise in any way create a hazard or endanger the landing, takeoff or maneuvering of aircraft intending to use the airport.

F. NONCONFORMING USES
1. Regulations not Retroactive - The regulations prescribed by this section shall not be constituted to require the removal, lowering or other changes or alteration of any structure or tree not conforming to the regulations as of the effective date of this Ordinance, or otherwise interfere with the continuance of a nonconforming use. Nothing contained herein shall require any change in the construction, alteration or intended use of any structure, the construction or alteration of which was begun prior to the effective date of this Ordinance, and is diligently prosecuted.

2. Marking and Lighting - Notwithstanding the preceding provision of this section, the owner of any existing nonconforming structure or tree is hereby required to permit the installation, operation and maintenance thereon of such markers and lights as shall be deemed necessary by the Zoning Administrator for the City of Marshall, to indicate to the operators of aircraft in the vicinity of the airport, the presence of such airport obstruction. Such markers and lights shall be installed, operated and maintained at the expense of the City of Marshall.

Secs. 31-85 thru 94. RESERVED.

Zoning

City of Marshall

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214 North Lafayette Ave

Marshall, Missouri 65340

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