(1) regulating land use and the height of structures and trees to prevent the establishment of airport hazards;

(2) restricting the establishment of incompatible land uses near the airport; and

(3) requiring the marking and lighting of new and existing obstructions within the airport overlay districts established by this Chapter. (Ord. 25-08 §1 (Att. A), 2025; Ord. 87-9 §1, 1987).

(1) Airport. The Pullman-Moscow Regional Airport.

(2) Airport Elevation. The highest point of the airport’s usable landing area.

(3) Airport Hazard. Any structure, tree, or mobile object located at, or moving through, the airport or its vicinity, or any use of land near the airport that obstructs the navigable airspace required for the flight of aircraft.

(4) Airport Imaginary Surfaces. The following airport imaginary surfaces are established with relation to the airport and its runway. The size of each imaginary surface is based on the type of approach available or planned for each end of the runway. The slope and dimensions of the approach surface applied to each end of the runway are determined by the most precise approach existing or planned for that end of the runway.

(5) Height. For determining the height limits in the Airport Height Limitation Overlay Districts, the base datum will be mean sea level, unless otherwise specified.

(6) Larger than Utility Runway. Any runway constructed and intended for use by propeller-driven aircraft of greater than 12,500 pounds maximum gross weight, or by jet aircraft.

(7) Nonprecision Instrument Runway. Any runway having an existing instrument approach procedure that utilizes air navigation facilities with only horizontal guidance, or area type navigation equipment, for which a straight-in nonprecision instrument approach has been approved or planned.

(8) Obstruction. Any structure or tree that exceeds the height limits established in PCC 17.95.040.

(9) Runway. Refers to Runway 5-23 at the Pullman-Moscow Regional Airport.

(10) Structure. Any object, including a mobile object, constructed or installed by man, including buildings, towers, cranes, smoke stacks, earth formations, and overhead transmission lines.

(11) Substantial Noise Impact Area. All areas where the existing or potential airport-related noise levels exceed 65 Ldn (day-night average).

(12) Tree. Any object of natural growth. (Ord. 25-08 §1 (Att. A), 2025; Ord. 87-9 §1, 1987).

(1) Airport Height Limitation Overlay Districts. The Horizontal, Conical, Approach, and Transitional Airport Overlay Districts include all land lying directly beneath the horizontal, conical, approach, and transitional surfaces defined in PCC 17.95.020(4). The location and boundaries of these Districts are shown on a map dated February, 1984, entitled “Pullman-Moscow Regional Airport Height Limitation Overlay Districts” which is adopted by this reference as part of this Title.

(2) Airport Use Restriction Overlay District. The Airport Use Restriction Overlay District includes the Substantial Noise Impact Area defined in PCC 17.95.020(11). The location and boundaries of this District are shown on a map dated February, 1984, entitled “Pullman-Moscow Regional Airport Use Restriction Overlay District” which is adopted by reference as part of this Title. (Ord. 25-08 §1 (Att. A), 2025; Ord. 87-9 §1, 1987).

(1) cause interference with the operation of radio or electronic facilities at the airport or with radio or electronic communication between the airport and aircraft;

(2) make it difficult for pilots to distinguish between airport and other lights or result in glare in the eyes of pilots using the airport;

(3) impair visibility in the vicinity of the airport; or

(4) in any other way endanger aircraft operations. (Ord. 25-08 §1 (Att. A), 2025; Ord. 87-9 §1, 1987).

(1) all residential uses, including transient living quarters;

(2) child day care facilities and nursery schools;

(3) educational facilities, including libraries, but excepting those facilities directly associated with experiential learning in aircraft operation or maintenance or with operations that are accessory to research and training at WSU;

(4) hospitals; and

(5) churches. (Ord. 25-08 §1 (Att. A), 2025; Ord. 03-33 §36, 2003; Ord. 87-9 §1, 1987).

(1) the application for a variance will be accompanied by a written determination from the Federal Aviation Administration of the effect of the proposed variance on the operation of the airport and on the safe and efficient use of navigable airspace; and

(2) the application must be referred to the Airport Manager for written review and comment within 15 days of the application’s filing date. (Ord. 25-08 §1 (Att. A), 2025; Ord. 03-33 §37, 2003; Ord. 87-9 §1, 1987).

(1) Any permit or variance issued for any structure or use in any Airport Height Limitation Overlay District may be conditioned on the installation, operation, and maintenance of markers and lights indicating the presence of an airport hazard. Required markers and lights must be installed, operated, and maintained by the owner of the hazard.

(2) The owner of any existing structure, tree, or use that is an airport hazard may be required to permit the installation, operation, and maintenance of markers or lights. The marking and lighting of existing airport hazards must be installed, operated, and maintained at the expense of the owner of the hazard. (Ord. 25-08 §1 (Att. A), 2025; Ord. 87-9 §1, 1987).