Trans 57.01Trans 57.01 Purpose. The purpose of this chapter is to interpret and implement s. 114.134 (3) to (5), Stats., relating to airport site approval and to provide standards for site approval.

Trans 57.01 HistoryHistory: Cr. Register, January, 1999, No. 517, eff. 2-1-99.

Trans 57.02Trans 57.02 Definitions. The words and phrases defined in ch. 114, Stats., have the same meaning in this chapter unless a different definition is specifically provided. In this chapter:

Trans 57.02(1)(1) “Airport not open to the public” is any airport requiring permission from the airport owner or the manager prior to its use by any person other than the owner.

Trans 57.02(2)(2) “Airport open to the public” means an airport, whether publicly or privately owned, which is open for aeronautical use by the general public.

Trans 57.02(3)(3) “Airport study” means an analysis performed by the department to determine an airport’s compatibility with other transportation facilities.

Trans 57.02(4)(4) “Applicant” means a person who applies to construct or establish a new airport or activate an airport within the state.

Trans 57.02(5)(5) “Application” means FAA form 7480-1, “Notice of Landing Area Proposal” together with a bureau airport site approval application.

Trans 57.02 NoteNote: FAA form 7480-1, Notice of Landing Area Proposal, and the airport site approval application may be obtained by writing to the Department of Transportation, Division of Infrastructure Development, Bureau of Aeronautics, 4802 Sheboygan Avenue, Room 701, P. O. Box 7914, Madison, WI 53707-7914.

Trans 57.02(6)(6) “Approach area” means a trapezoid centered on the extended runway centerline. The trapezoid has an inner width at the runway threshold of 250 feet, a length of 5,000 feet from the threshold and an outer width of 1,250 feet.

Trans 57.02(7)(7) “Approach surface” means an inclined plane which extends outward and upward from the runway threshold at a slope of 20:1, 20 feet horizontal to 1 foot vertical. The approach surface has dimensions which are bound by the vertical projection of the approach area.

Trans 57.02(8)(8) “Bureau” means the bureau of aeronautics, division of infrastructure development, Wisconsin department of transportation.

Trans 57.02(9)(9) “Certificate” means a certificate of airport site approval issued by the department.

Trans 57.02(10)(10) “Displaced threshold” means a landing threshold located at a point on the runway other than the physical end of the runway.

Trans 57.02(11)(11) “FAA” has the same meaning as provided in s. Trans 56.03 (7).

Trans 57.02(13)(13) “Object” means any structure, objects of natural growth, permanent or temporary construction or apparatus including, but not limited to, buildings, fences, hills, power and telephone lines, shrubs, traverse ways, trees and towers.

Trans 57.02(14)(14) “Obstruction” means any object which penetrates the approach surface within the approach area or the runway primary surface.