Wis. Admin. Code Department of Transportation Trans 57.04 - Standards

The following standards shall be met in order to maintain airport site compatibility with existing and planned transportation facilities in the area:

(1) AIRPORTS.

(a) All objects within the approach area of each runway shall be considered in determining compliance. Each type of traverse way is considered to be an object with a clearance height as follows:

1. Public roads, 15 feet.

2. Private roads, 10 feet.

3. Interstate highways, 17 feet.

4. Railroads, 23 feet.

5. Waterways and other traverse ways, an amount equal to the height of the highest mobile object that would normally travel upon them.

(b) A displaced threshold shall be marked similar to attached diagram B for runways with other than paved surfaces. Runways with paved surfaces shall be marked in accordance with FAA advisory circular 150/5340-1G, "Standards for Airport Markings," September 27, 1993. In addition, if the runway is lighted, the displaced threshold shall be lighted in accordance with FAA advisory circular 150/5340-24, "Runway and Taxiway Edge Lighting System," September 3, 1975. It applies to low intensity runway lighting systems and medium intensity systems.

Note: These FAA advisory circulars are available from the United States Department of Transportation, Distribution Unit, T AB 443.1, Washington, D. C. 20590, and are also on file with the offices of the Legislative Reference Bureau and Secretary of State.

(c) The effective runway length to be reported for each runway landing direction is the physical length of the runway less the displaced threshold at the approach end of the runway.

(2) AIRPORTS OPEN TO THE PUBLIC.

(a) If any object penetrates the approach surface, then the runway threshold, the point of interception of the approach area and the approach surface shall be displaced down the landing runway.

(b) The displaced threshold shall be located at a point where no object penetrates the approach surface.

(3) AIRPORTS NOT OPEN TO THE PUBLIC.

(a) The displaced threshold shall be located at a point where no public traverse way clearance height penetrates the approach surface.

(b) If the clearance height assigned to any public traverse way penetrates the approach surface, then the runway threshold, the point of interception of the approach area and the approach surface shall be displaced down the landing runway.

(c) A displaced threshold shall be marked similarly to attached diagram B for runways with other than paved surfaces. Runway marking and lighting is subject to FAA advisory circular criteria which are identical to airports open to the public.

(d) The effective runway length to be reported for each runway landing direction is the physical length of the runway less the displaced threshold at the approach end of the runway.

Notes

Wis. Admin. Code Department of Transportation Trans 57.04

Cr. Register, January, 1999, No. 517, eff. 2-1-99.