BOCC Ordinance - 2021 Annual Docket

Home Browse Search

outward for each one foot upward beginning at the inner end of the surface and extending for a distance of 5,000 feet along the extended runway centerline. d. Transitional Zones. This zone is defined by a slope seven feet outward for each one foot upward beginning at the sides of, and at the same elevation as the primary surface and the approach surfaces, measured at 90-degree angles to the runway centerline, and extending to a height of 150 feet above the airport elevation (horizontal zone), which is 1,913 feet above mean sea level. Height Restrictions: No object shall penetrate the imaginary line created by a slope seven feet outward for each one foot upward beginning at the sides of and the same elevation as the primary surface or approach surfaces, and extending to where they connect to the horizontal zone. Further, where a precision instrument runway approach zone projects beyond the conical zone, no object shall penetrate the imaginary line created by a slope seven feet outward for each one foot upward beginning at the sides of and the same elevation as the approach surface, and extending a horizontal distance of 5,000 feet measured at 90-degree angles to the extended runway centerline. e. Horizontal Zone. The zone is established at 150 feet above the airport elevation (1,913 feet above mean sea level) by swinging arcs of 5,000 feet for all runway ends designated utility or visual, and 10,000 feet for all other runways, from the intersection of the extended runway centerline and the end of the primary surface for each runway end. The adjacent arcs are connected by drawing lines tangent to those arcs. The horizontal zone does not include the approach and transitional zones. Height Restrictions: No object shall penetrate the imaginary horizontal line created at 150 feet above the airport elevation, or 1,913 feet above mean sea level. f. Conical Zone. The conical zone is established as the area that commences at the periphery of the horizontal zone and extends outward there from for a horizontal distance of 4,000 feet as depicted in map "A". Height Restrictions: No objects shall penetrate the imaginary line created by a slope 20 feet outward for each one foot upward beginning at the periphery of the horizontal zone (150 feet above the airport elevation) and extending to a height up to 350 feet above the airport elevation. 2. Safety Zones. In order to carry out the provisions of this chapter and to promote land use compatibility on lands within and adjacent to and in the vicinity of the Kittitas County Airport (Bowers Field), there are created and established certain safety zones. Such safety zones are shown on Kittitas County Airport (Bowers Field) overlay zoning district map "B", as amended. Within each of the safety zones, certain land use limitations are established and certain development standards are imposed in addition to the land uses and development standards of the underlying zoning. Where the requirements imposed by these safety zones conflict with the requirements of the underlying zoning, the more restrictive requirement shall be enforced. The safety zones are established and defined as follows: a. Runway Protection Zone 1. An area extending beyond the centerlines of runways 11, 29, 07, and 25 as depicted on map "B" (shaded area #1). This zone begins from the outer boundaries of the primary surface, 200 feet from the ends of the runways and extends out 1,700 feet to its widest point, which measures 1,010 feet across, 505 feet on either side of the runway centerline. b. Inner Safety Zone 2. An area extending beyond the centerlines of runways 11, 29, 07, and 25 as depicted in map "B" (shaded area #2). This zone begins at the end of the runway Deleted: ¶ Runway 29, Larger than Utility with a Visibility Minimum Lower than Three-Fourth Mile Precision Instrument Approach Zone. The 1,000-foot inner edge of this approach zone coincides with the width of the primary surface. The approach zone expands uniformly to a width of 16,000 feet at a horizontal distance of 50,000 feet from the primary surface. Its centerline is the continuation of the centerline of the runway as depicted on map "A". Height Restrictions: No object shall penetrate the imaginary line created by a slope 50 feet outward for each one foot upward for the first 10,000 feet of this zone and 40 feet outward for each one foot upward for the remaining 40,000 feet of this zone.¶ Deleted: 139 Deleted: intersect the Deleted: conical surface Deleted: the Deleted: or at a height of Deleted: 6 Deleted: radial Deleted: s Deleted: or Deleted: s Deleted: of Deleted: and connecting Deleted: or at a height above the airport of Deleted: 6 Deleted: and at Deleted: , Deleted: 0 Deleted: surface of the land