[Amended 9-27-2011 by Ord. No. 235-2011]
This article is adopted pursuant to the authority conferred
upon the Board of Commissioners of Doña Ana County by NMSA
§§ 4-37-1 and 3-39-16 through 3-39-26 and Section 511
of the Airport and Airway Improvement Act of 1982 (49 U.S.C. 47107).
Compliance with Code of Federal Regulations Title 14, Part 77, and
other federal, state, and local statutes is implied.
This article shall be known and may be cited as the "Doña
Ana County Airport Zoning Height Obstruction Ordinance."
As used in this Chapter
125, the following definitions shall apply unless the context of a particular section provision otherwise requires:
AIRPORT
The Doña Ana County Airport at Santa Teresa.
AIRPORT ELEVATION
The highest point of an airport's usable landing surface
measured in feet from sea level (currently 4,112.25 feet per the 2004
Airport Layout Plan or as otherwise amended and adopted by the FAA).
AIRPORT MANAGER or MANAGER
The designated individual or duly authorized individual appointed
by the County to administer and manage all operations of the Airport
and Airport facilities, and to supervise all Airport projects.
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 §
125-5 of this article. 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 to one for a horizontal
distance of 4,000 feet.
COUNTY
Doña Ana County or the Board of County Commissioners
of Doña Ana County as the context requires.
FAA
The Federal Aviation Administration.
HAZARD TO AIR NAVIGATION
An obstruction determined to have a substantial adverse effect
on the safe and efficient utilization of the navigable airspace.
HEIGHT
For the purpose of determining the height limits in all zones
set forth in this article and shown on the Zoning Map, the datum shall
be mean sea level elevation unless otherwise specified.
HELIPORT PRIMARY SURFACE
The area of the primary surface that coincides in size and
shape with the designated takeoff and landing area of a heliport.
This surface is a horizontal plane at the elevation of the elevation
of the established heliport elevation.
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 for use by
propeller-driven aircraft of greater than 12,500 pounds' maximum gross
weight and jet-powered aircraft.
NONCONFORMING USE
Any proposed or preexisting structure, object of natural
growth or use of land which is inconsistent with the provisions of
this article or amendments thereto.
NON-PRECISION-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 non-precision-instrument
approach procedure has been approved or planned.
OBSTRUCTION
Any structure, growth, or other object, including a mobile
object that extends a limiting height set forth in this article.
PERSON
An individual, firm, partnership, corporation, company, association,
joint stock association, or governmental entity; includes a trustee,
a receiver, an assignee, or a similar representative of any of them.
PRECISION-INSTRUMENT RUNWAY
A runway having an existing instrument approach procedure
utilizing an instrument landing system (ILS) precision approach radar
(PAR) or other system using precision vertical guidance and horizontal
guidance allowing a straight-in approach. It also means a runway for
which a precision approach system is planned and so indicated on an
approved airport layout plan or other planning document.
PRIMARY SURFACE
A surface longitudinally centered on a runway. When the runway has a specifically prepared hard surface, the primary surface extends 200 feet beyond each end of that runway. The width of the primary surface is set forth in §
125-5 of this article. The elevation of any point on the primary surface is the same as the elevation of the nearest point on the runway center line.
RUNWAY
A defined area on an airport prepared for 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 formations, and overhead transmission lines.
TRANSITIONAL SURFACES
Surfaces that 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
90° 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 OVERLAY MAP
A map depicting imaginary surfaces defined by approach, transitional,
horizontal, and conical zones.
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 each such zone.
A. Such applicable
height limitations are hereby established for each of the zones in
question as follows:
(1) 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 center line.
(2) Utility runway non-precision-instrument 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.
(3) Runway larger-than-utility 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.
(4) Runway larger-than-utility with a visibility greater than 3/4 mile
non-precision-instrument approach zone: slopes 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 10,000
feet along the extended runway center line.
(5) Runway larger-than-utility with a visibility minimum as low as 3/4
mile no-precision-instrument approach zone: slopes 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 10,000
feet along the extended runway center line.
(6) Precision-instrument runway approach zone: slopes 50 feet outward
for each foot upward beginning at the 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
additional horizontal distance of 40,000 feet along the extended runway
center line.
(7) Heliport approach zone: slopes eight feet outward for each foot upward
beginning at the end of and at the same elevation as the primary surface
and extending to a distance of 4,000 feet along the heliport approach
zone center line.
(8) 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 (4,112.25 feet, 2004 Airport Layout
Plan). In addition to the foregoing, there are established height
limitations 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.
(9) Heliport transitional zones: slope two feet outward for each foot
upward beginning at the sides of and at the same elevation as the
primary surface and the heliport approach zones and extending a distance
of 250 feet measured horizontally from and at ninety-degree angles
to the primary surface center line and heliport approach zones center
line.
(10)
Horizontal zone: established at 150 feet above the airport elevation.
(11)
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.
B. Excepted height limitations. 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 50 feet above the surface of
the land.
Notwithstanding any other provisions of this article to the
contrary, no use may be made of land or water within any zone established
by this article in such a manner as to create electrical interference
with navigational signals or radio communication between the airport
and aircraft that makes it difficult for pilots to distinguish between
airport lights and others, that result in glare in the eyes of pilots
using the airport, that impair visibility in the vicinity of the airport,
that create bird strike hazards, or otherwise in any way endanger
or interfere with the landing, takeoff or maneuvering of aircraft
intending to use the airport.
This article shall be administered by the County's Community
Development Director with the assistance of his staff and the advice
of the Airport Manager.
A. Applications for permits and variances shall be made to the Community
Development Director, with a copy being provided to the Airport Manager,
upon a form published by the County for that purpose.
B. Except as specifically provided for in Subsection
B(1),
(2) and
(3) below, no material change may be made in the use of airport land, no structure shall be erected or enlarged and no tree shall be planted or altered in any zone created under this article unless a permit shall have been applied for and granted.
(1) In the area lying within the limits of the horizontal zone and conical
zone, no permit shall be required for any tree or structure less than
75 feet of vertical height above the ground, except when, because
of terrain, land contour, or topographic features, such tree or structure
would extend above the height limits prescribed for such zones.
(2) In areas lying within the limits of the approach zones, but at a
horizontal distance of not less than 4,200 feet from each end of the
runway, no permit shall be required for any tree or structure less
than 75 feet of vertical height above the ground, except when such
tree or structure would extend above the height limit prescribed for
such approach zones.
(3) In the areas lying within the limits of the transition zones beyond
the perimeter of the horizontal zone, no permit shall be required
for any tree or structure less than 75 feet of vertical height above
the ground, except when such tree or structure, because of terrain,
land contour or topographical features, would extend above the height
limit prescribed for such transition zones.
(4) Nothing contained in any of the foregoing exceptions shall be construed as permitting or intending to permit any construction, or alteration of any structure, or growth of any tree in excess of any of the height limits established by this article except as provided for in §
125-8.
C. Each applicant for a permit shall indicate in writing the purpose
for which the permit is sought and shall describe with particularity
the use to be made of the land or the structure or tree to be erected
or planted or altered to include, but not be limited to, its dimensions
and construction components.
D. No permit shall be granted for which the purpose, use, dimensions or construction particulars of the project are inconsistent with the provisions of this article, unless a variance has been applied for and approved as provided for in §
125-10.
E. All permit applications are subject to any other applicable zoning
regulations of the County as provided for in Chapter 250, Land Use
and Zoning, as amended.
Fees shall be charged by the County for permit and variance applications and processing and for the filing of appeals to the Airport Board of Appeals consistent with such fees in the County's Land Use Regulations and Zoning Ordinance as set forth in Chapter
179, Fees and Permits, Article XI, as amended.