Lincoln Municipal Code Art. I Designation of Zones

In order to carry out the provisions of this chapter, there are created and established certain zones which include all of the land lying within the approach zones, transitional zones, horizontal zones and conical zones of the airport. Such zones are shown on the Lincoln Municipal Airport Hazard Zoning Map, consisting of one sheet prepared by Reinard W. Brandley and dated June 8, 1979, which is attached to this chapter and made a part hereof. An area located in more than one of the zones described in this article is considered to be only in the zone with the more restrictive height limitation. The various zones are established and defined as set out in this article.

(Ord. 386B §1(part), 1981: Ord. 357B §9.02.000(part), 1979)

The inner edge of the utility runway visual approach zone coincides with the width of the primary surface and is 250 feet wide. The approach zone expands outward uniformly to a width of 1,250 feet at a horizontal distance of 5,000 feet from the primary surface. Its centerline is the continuation of the centerline of the runway.

(Ord. 386B §1(part), 1981: Ord. 357B §9.02.000(a), 1979)

The inner edge of the utility runway nonprecision instrument approach zone coincides with the width of the primary surface and is 500 feet wide. The approach zone expands outward uniformly to a width of 2,000 feet at a horizontal distance 5,000 feet from the primary surface. Its centerline is the continuation of the centerline of the runway.

(Ord. 386B §1(part), 1981: Ord. 357B §9.02.000(b), 1979)

The inner edge of the runway-larger-than-utility approach zone coincides with the width of the primary surface and is 1,000 feet wide. The approach zone expands outward uniformly to a width of 1,500 feet at a horizontal distance of 5,000 feet from the primary surface. Its centerline is the continuation of the centerline of the runway.

(Ord. 386B §1(part), 1981: Ord. 357B §9.02.000(c), 1979)

The inner edge of the runway-larger-than-utility with a visibility minimum greater than three-fourths of a mile nonprecision instrument approach zone coincides with the width of the primary surface and is 500 feet wide. The approach zone expands outward uniformly to a width of 3,500 feet at a horizontal distance of 10,000 feet from the primary surface. Its centerline is the continuation of the centerline of the runway.

(Ord. 386B §1(part), 1981: Ord. 357B §9.02.000(d), 1979)

The inner edge of the runway-larger-than-utility with a visibility minimum as low as three-fourths of a mile nonprecision instrument approach zone coincides with the width of the primary surface and is 1,000 feet wide. The approach zone expands outward uniformly to a width of 4,000 feet at a horizontal distance of 10,000 feet from the primary surface. Its centerline is the continuation of the centerline of the runway.

(Ord. 386B §1(part), 1981: Ord. 357B §9.02.000(e), 1979)

The inner edge of the precision instrument runway approach zone coincides with the width of the primary surface and is 1,000 feet wide. The approach zone expands outward 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.

(Ord. 386B §1(part), 1981: Ord. 357B §9.02.000(f), 1979)

Transitional zones are established as the area beneath the transitional surfaces. These surfaces extend outward and upward at 90-degree angles to the runway centerline and the runway centerline 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 zones for those portions of the precision approach zones 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 zone and at 90-degree angles to the extended runway centerline.

(Ord. 386B §1(part), 1981: Ord. 357B §9.02.000(g), 1979)

The horizontal zone is established by swinging arcs of 10,000 feet radii from the center of each end of the primary surface of each runway, and connecting the adjacent arcs by drawing lines tangent to those arcs. The horizontal zone does not include the approach and transitional zones.

(Ord. 386B §1(part), 1981: Ord. 357B §9.02.000(h), 1979)

The conical zone is established as the area that commences at the periphery of the horizontal zone and extends outward therefrom a horizontal distance of 4,000 feet. The conical zone does not include the precision instrument approach zones and the transitional zones.

(Ord. 386B §1(part), 1981: Ord. 357B §9.02.000(i), 1979)