This chapter shall be known and may be cited as the "Twin County
Airport Safety Zoning Ordinance."
As used in this chapter, the following terms shall have the
meanings respectively ascribed to them, unless the context clearly
requires otherwise:
ADMINISTRATOR
The official charged with the enforcement of this chapter.
He or she shall be the Carroll County Building Official.
[Amended 11-14-2013]
AIRPORT ELEVATION
The highest point on any usable landing surface expressed
in feet above mean sea level.
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 §
72-4 of this chapter. In plan, the perimeter of the approach surface coincides with the perimeter of the approach zone.
CONICAL SURFACE
A surface extending horizontally 20 feet for every one foot
vertically from the periphery of the horizontal surface.
HAZARD TO AIR NAVIGATION
An obstruction determined by the Virginia Department of Aviation
or the Federal Aviation Administration to have a substantial adverse
effect on the safe and efficient utilization of navigable airspace
in the commonwealth.
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 (MSL) 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.
NONCONFORMING USE
Any preexisting structure or object of natural growth which
is inconsistent with the provisions of this chapter or any amendment
to this chapter.
OBSTRUCTION
Any structure, growth, or other object, including a mobile object, which exceeds a limiting height or penetrates any surface or zone floor set forth in §
72-4 of this chapter.
PERMIT
A document issued by Carroll County allowing a person to
begin an activity which may result in any structures or vegetations
exceeding the height limitations provided for in this chapter.
PERSON
Any individual, firm, partnership, corporation, company,
association, joint-stock association, or governmental entity. The
term includes a trustee, a receiver, an assignee, or a similar representative
of any of them.
PRIMARY SURFACE
A surface, with a specified width as provided in §
72-3 of this chapter, 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 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 specified area on an airport prepared for landing and takeoff
of aircraft.
STRUCTURE
Any object, including a mobile object, constructed or installed
by any person, including but not limited to buildings, towers, cranes,
smokestacks, earth formations, poles, and electric lines of overhead
transmission routes, flagpoles, and ship masts.
TRANSITIONAL SURFACES
Surfaces which extend outward perpendicular to 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.
ZONE
All areas provided for in §
72-3 of this chapter, generally described in three dimensions by reference to ground elevation, vertical distances from the ground elevation, horizontal distances from the runway center line and the primary and horizontal surfaces, with the zone floor set at specific vertical limits by the surfaces found in §
72-4 of this chapter.
Notwithstanding any other provisions of this chapter, and within
the area below the horizontal limits of any zone established by this
chapter, no use may be made of land or water in such a manner as to:
A. Create electrical interference with navigational signals or radio
communication between the airport and airborne aircraft;
B. Diminish the ability of pilots to distinguish between airport lights
and other lights;
C. Result in glare in the eyes of pilots using the airport;
D. Impair visibility in the vicinity of the airport;
E. Create the potential for bird-strike hazards; or
F. Otherwise in any way endanger or interfere with the landing, takeoff,
or maneuvering of aircraft intending to use the airport.
The administrator shall administer and enforce the regulations
prescribed in this chapter. He or she shall be vested with the police
power incumbent to carry out and effectuate this chapter, including
the action of injunction, prosecution and other available means through
the Carroll County Board of Supervisors. Applications for permits
and variances shall be made to the administrator on a form published
for that purpose.
Any person aggrieved or any officer, department, board, or bureau
of Carroll County affected by a decision of the administrator may
appeal such decision to the Carroll County Board of Supervisors.
Any person aggrieved or any taxpayer adversely affected by any
decision of the Carroll County Board of Supervisors may appeal to
the Circuit Court of Carroll County.
[Amended 11-14-2013]
Each violation of this chapter or of any regulation, order,
or ruling promulgated under this chapter shall constitute a Class
1 misdemeanor. Each day on which a violation occurs shall constitute
a separate offense.
Where there exists a conflict between any of the regulations
or limitations prescribed in this chapter and any other regulations
applicable to the same subject, where the conflict is with respect
to the height of structures or vegetation and the use of land, or
any other matter, the more stringent limitation or requirement shall
govern.