Chapter 17.60
AIRPORT LANDING OVERLAY
DISTRICT (AL)
Sections:
17.60.060 Hazard marking and lighting.
17.60.010 Purpose and intent.
The airport landing overlay district is intended to restrict the height of structures and objects of natural growth and to require the marking and lighting of existing and new uses to control the hazard to aircraft as required by Part 77 (Objects Affecting Navigable Airspace) of the Federal Aviation Regulations. In addition, this overlay zone is intended to prevent the establishment of air space obstructions in airport approaches and surrounding areas through height restrictions and other land use controls as deemed essential to protect the health, safety and welfare of Colville residents. (Ord. 1160 NS § 1, 1997).
17.60.020 Compliance.
In addition to complying with the provisions of the underlying zoning district, uses and activities shall comply with the provisions of the overlay zone. In the event of any conflict between any provisions of the overlay zone and the primary zoning districts, the more restrictive provisions shall apply. (Ord. 1160 NS § 1, 1997).
17.60.030 Permitted uses.
Permitted uses in the AL district shall be as follows:
A. Airport facilities, including runways, hangars, service facilities such as for aviation fuel, passenger terminal buildings, and all other uses common or incidental to airport use;
B. Agricultural uses that do not include buildings or structures;
C. Underground pipelines and utility wires;
D. Single-family dwellings, manufactured homes, and duplexes, when authorized in the primary zoning district, provided the landowner signs and records in the deed and mortgage records of Stevens County a hold harmless agreement and aviation and hazard easement and submits them to the airport sponsor and city planning department. (Ord. 1239 NS § 2, 2001; Ord. 1160 NS § 1, 1997).
17.60.040 Conditional uses.
Because of considerations of traffic, noise, lighting, hazards, health and environmental issues, the following uses may be permitted in the AL district subject to a conditional use permit:
A. Multifamily dwellings, when authorized in the primary zoning district, provided the landowner signs and records in the deed and mortgage records of Stevens County a hold harmless agreement and aviation and hazard easement and submits them to the airport sponsor and city planning department;
B. Passive, low-intensity recreation areas which do not include buildings or structures;
C. Commercial and industrial uses, when authorized in the primary zoning district, provided the use does not result in the following:
1. Electrical interference with navigational signals or radio communication between the airport and aircraft;
2. Light or glare making it difficult for pilots to distinguish between airport lights or others;
3. Impaired visibility;
4. Creating or increasing bird strike hazards;
5. Endangering or interfering with the landing, taking off or maneuvering of aircraft intending to use the airport;
6. Attracting large numbers of people.
D. Buildings and uses of a public works service or public utility nature. (Ord. 1239 NS § 4, 2001; Ord. 1160 NS § 1, 1997).
17.60.050 Limitations.
A. To meet the standards and reporting requirements established in FAA Regulations, Part 77, no structure shall penetrate into the airport imaginary surfaces.
B. No place of public assembly shall be permitted in the airport approach safety zone.
C. No structure or building shall be allowed within the clear zone.
D. Whenever there is a conflict in height limitations prescribed by this overlay zone and the primary zoning district, the lowest height limitation fixed shall govern; provided, however, that the height limitations shall not apply to structures customarily employed for aeronautical purposes.
E. No glare producing materials shall be used on the exterior of any structure located within the airport approach safety zone.
F. In noise sensitive areas (within 1,500 feet of an airport or within established noise contour boundaries of 65 Ldn and above for identified airports) where noise levels are a concern, a declaration of anticipated noise levels shall be attached to any building permit and subdivision plat as a note on the face of the plat.
G. In areas where the noise level is anticipated to be 65 Ldn and above, prior to issuance of a building permit for construction of noise sensitive land use (real property normally used for sleeping or as schools, churches, hospitals, or public libraries), the applicant shall be required to incorporate into the building design measures which will achieve an indoor noise level equal to or less than 45 decibels.
H. No building permit shall be issued for erection of any new structure or alteration to or expansion of any existing structure that would create an airport hazard due to height or increase the height of an existing airport hazard. (Ord. 1160 NS § 1, 1997).
17.60.060 Hazard marking and lighting.
A. Any building permit may be conditioned, if deemed necessary by the airport board to avoid an airport landing hazard, so as to require that the structure or tree in question is marked and/or lighted to indicate to pilots the presence of an airport hazard. Marking and lighting shall be installed, operated and maintained by the local airport authority.
B. Any existing use not in conformance with the height limitations herein may be required to permit the installation, operation and maintenance of markers and lights if an airport hazard exists. (Ord. 1160 NS § 1, 1997).