The following words and phrases, when used in this chapter,
shall have the meanings given to them in this section, unless the
context clearly indicates otherwise:
AIRCRAFT
Any contrivance, except an empowered hang glider or parachute,
used for manned ascent into or flight through the air. See 74 Pa.C.S.A.
§ 5102.
AIRPORT
Refers to the "Inter County Airport." It is defined as any
area of land or water which is used or intended to be used for the
landing and takeoff of aircraft and any appurtenant areas which are
used or intended to be used for airport buildings or air navigation
facilities or rights-of-way, together with all airport buildings and
facilities thereon. See 74 Pa.C.S.A. § 5102. The term "airport"
shall not include heliports. Private and public airports are defined
separately in this section.
AIRPORT ELEVATION
The highest point of an airport's usable landing area measured
in feet from sea level; as used herein, 1,250 feet above mean sea
level.
AIRPORT HAZARD AREA
Any area of land or water upon which a hazard to air navigation
(an airport hazard) might be established if not prevented as provided
by these regulations and Act No. 164 of 1984.
APPROACH SURFACE
A surface longitudinally centered on the extended runway center line, extending outward and upward from the end of the primary surface and at the same slope as the approach zone height limitation slope set forth in §
156-5 of this chapter. In plan, the perimeter of the "approach surface" coincides with the perimeter of the approach zone.
CONICAL SURFACE
A surface extending outward and upward from the periphery
of the horizontal surface at a slope of 20:1 for a horizontal distance
of 4,000 feet.
DEPARTMENT
The Pennsylvania Department of Transportation.
FAA
The Federal Aviation Administration of the United States
Department of Transportation.
HAZARD TO AIR NAVIGATION
Any structure or object, natural or man-made, or use of land
which obstructs the airspace required for flight or aircraft in landing
or taking off at an airport or is otherwise hazardous as defined by
"airport hazard" in 74 Pa.C.S.A. § 5102.
HEIGHT
For the purpose of determining the height limits in all zones
set forth in this chapter, and shown on the Zoning Map, the datum shall be mean sea level elevation unless otherwise
specified.
HORIZONTAL SURFACE
A horizontal plane 150 feet above the established airport
elevation, the perimeter of which, in plan, coincides with the perimeter
of the horizontal zone.
LARGER THAN UTILITY RUNWAY
A runway that is constructed for and intended to be used
by propeller-driven aircraft of greater than 12,500 pounds' maximum
gross weight and jet-powered aircraft.
NONCONFORMING USE
Any preexisting structure, object of natural growth or use
of land which is inconsistent with the provisions of this chapter
or an amendment thereto.
NONPRECISION INSTRUMENT RUNWAY
A runway having an existing 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.
OBSTRUCTION
Any structure, growth or other object, including a mobile object, which exceeds a limiting height set forth in §
156-5 of this chapter.
PERSON
An individual, firm, partnership, corporation, company, association,
joint-stock association or governmental entity and includes a trustee,
a receiver, an assignee or a similar representative of any of the
above.
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 approved airport layout
plan or any other planning document.
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; for military runways or 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 is set forth in §
156-4 of this chapter. The elevation of any point on the primary surface is the same as the elevation of the nearest point on the runway center line.
PRIVATE AIRPORT
An airport which is privately owned and which is not open
or intended to be open to the public as defined in 74 Pa.C.S.A. § 5102.
PUBLIC AIRPORT
An airport which is either publicly or privately owned and
which is open to the public as defined in 74 Pa.C.S.A. § 5102.
RUNWAY
A defined area on an airport prepared for the landing and
takeoff of aircraft along its length.
STRUCTURE
An object, including a mobile object, constructed or installed by man, including, but without limitation, buildings, towers, cranes, smokestacks, earth formation and overhead transmission lines. (See Addendum 2
attached to this chapter.)
TRANSITIONAL SURFACES
These surfaces which extend outward at ninety-degree angles to the runway center line and the runway
center line extended at a slope of seven 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
surfaces" for those portions of the precision approach surfaces 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 surface and at ninety-degree angles to the extended runway
center line.
TREE
Any object of natural growth.
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.
VISUAL RUNWAY
A runway intended solely for the operation of aircraft using
visual approach procedures.
ZONING HEARING BOARD
A Board appointed by the authority adopting these regulations. The number of members, powers, governing rules, etc., of the Board are set forth in §
156-9 of this chapter. "Joint Airport Zoning Board" is defined in §
156-10.
In order to carry out the provisions of this chapter, there are hereby created and established certain airport zoning districts (AZDs), which include all of the land lying beneath the approach surfaces, transitional surfaces, horizontal surfaces and conical surfaces as they apply to the Inter County Airport. Such zones are visually depicted on the Height Limitation and Airport Zoning District Map prepared by the Southwestern Pennsylvania Regional Planning Commission, and dated Spring of 1986, which is
attached to this chapter and made a part hereof. An area located in more than one of the following zones
is considered to be only in the zone with the more restrictive height
limitation.
A. The following AZDs are established for the Inter County Airport and
the Allegheny County Airport:
Inter County Airport Zoning Districts
|
---|
Primary Surface Zoning District
|
AZD-1
|
Utility Runway Visual Approach Zoning District
|
AZD-2
|
Transitional Zoning District (adjacent to Approach Zoning Districts)
|
AZD-3
|
Horizontal Zoning District
|
AZD-4
|
Conical Zoning District
|
AZD-5
|
Allegheny County Airport Zoning Districts
|
---|
Precision Instrument Runway Approach Zoning District (RW 28)
|
AZD-6
|
B. The airport zoning districts for the Inter County Airport are defined
as follows:
(1) Primary Surface Zone (AZD-1). The Primary Surface Zone is a surface
longitudinally centered on a runway. 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
is set forth, for each runway, in the following definitions.
(2) Utility Runway Visual Approach Zone (AZD-2). The inner edge of this approach zone coincides with the width of the primary surface and is 250 feet wide. (See Addendum 3
attached to this chapter.) The approach zone expands outward uniformly to a width of 1,250 feet at a horizontal distance of 5,000 feet from the primary surface. Its center line is the continuation of the center line of the runway.
(3) Transitional Zones (AZD-3). The Transitional Zones are the areas beneath the transitional surfaces. (See definition of "transitional surfaces" in §
156-3.)
(4) Horizontal Zone (AZD-4). The Horizontal Zone is established by swinging arcs of 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. (See Addendum 4
attached to this chapter.) The Horizontal Zone does not include the Approach and Transitional Zones.
(5) Conical Zone (AZD-5). 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 4,000 feet. It is established
here by swinging arcs of 9,000 feet from the center of each end of
the primary surface of each runway.
C. The airport zoning districts for the Allegheny County Airport are
defined as follows:
(1) Precision Instrument Runway Approach Zone (AZD-6). The inner edge of this approach zone coincides with the width of the primary surface and is 1,000 feet wide. (See Addendum 3
attached to this chapter.) 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 center line is the continuation of the center line of the runway.
Except as otherwise provided in this chapter, no structure shall
be erected, altered or maintained and no tree shall be allowed to
grow in any zone created by this chapter 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. The Utility Runway Visual Approach Zone slopes 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 5,000
feet along the extended runway center line.
B. Transitional Zones slope seven 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 150
feet above the airport elevation, which is 1,250 feet above mean sea
level. In addition to the foregoing, there are established height
limits sloping seven 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 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 5,000
feet measured at ninety-degree angles to the extended runway center
line.
C. The Horizontal Zone is established at 150 feet above the airport
elevation or at a height of 1,400 feet above mean sea level.
D. The Conical Zone slopes 20 feet outward for each foot upward beginning
at the periphery of the Horizontal Zone and at 150 feet above the
airport elevation and extending to a height of 350 feet above the
airport elevation; as used herein, 1,600 feet.
E. The Precision Instrument Runway Approach Zone slopes 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 10,000
feet along the extended runway center line; thence slopes upward 40
feet horizontally for each foot vertically to an addition horizontal
distance of 40,000 feet along the extended runway center line.
Where any airport hazard area appertaining to an airport is located outside the territorial limits of the municipality encompassing the airport, all of the municipalities involved may, by ordinance or resolution, create a Joint Airport Zoning Board, which shall have the same power to adopt, administer and enforce airport zoning regulations applicable to the airport hazard area in question as that vested (by the police power) in the municipality within which the area is located. (See Addendum 12
attached to this chapter.) Each Joint Airport Zoning Board shall have as members two representatives appointed by each municipality participating in its creation and, in addition, a Chairman elected by a majority of the members so appointed. (See Addendum 13
attached to this chapter.)
In any case in which it is desired to remove, lower or otherwise terminate a nonconforming structure or use, or the approach protection necessary cannot, because of constitutional limitations, be provided by airport zoning regulations, or it appears advisable that the necessary approach protection be provided by acquisition of property rights, rather than by airport zoning regulations, the municipality within which the property or nonconforming use is located or the municipality or municipal authority owning the airport or served by it may acquire, by purchase, grant or condemnation, in the manner provided by the law under which municipalities are authorized to acquire real property for public purposes, such air right, aviation easement or other estate or interest in the property or nonconforming structure or use in question as may be necessary to effectuate the purposes of this chapter. In the case of the purchase of any property or any easement or estate or interest therein or the acquisition thereof by the power of eminent domain, the municipality making the purchase of exercising the power shall, in addition to the damages for the taking, injury or destruction of property, also pay the cost of the removal and relocation of any structure or any public utility which is required to be moved to a new location. (See Addendum 16
attached to this chapter.)
Any person aggrieved or any taxpayer affected by any decision of the Zoning Hearing Board may appeal to the Court of Common Pleas as provided by law. In cases where applicable law does not provide an appeal from a municipality to a Board, a person or taxpayer may appeal from a decision of a municipality or Joint Airport Zoning Board as provided by law for similar zoning proceedings. (See Addendum 18
attached to this chapter.)
[Amended 1-11-1989 by Ord. No. 713; 12-20-1995 by Ord. No. 880]
Any person, firm or corporation who violates the provisions
of this chapter shall, upon conviction, be sentenced to pay a fine
of not less than $75 nor more than $600, plus the costs of prosecution,
and, in default of the payment of the fine and costs of prosecution,
shall be imprisoned for a period not exceeding 30 days. Each day a
violation continues to exist shall constitute a separate offense.