Environmental Analysis on South Runway Tree Removal, Yokota Air Force Base
Abstract
lAW UFC 3-260-01 a Mandatory Frangibility Zone must be maintained, to the extent possible, in the Clear Zone at the end of the runway. The MFZ is to be 500 feet wide, measured from the center of the runway, and 3,000 feet long, measured from the end of the runway. The purpose of the MFZ is to provide an aircraft safety area. The MFZ historically has not been maintained at the south end of the runway at Yokota AB due to a misunderstanding over responsibilities for tree maintenance. As a result there is a stand of mature trees in the MFZ that must be removed (Fig. 1). The proposed tree removal is to take p,lace in a 15 acre mixed use area (Figs. 2 and 3}, with approximately 90% composed of broadleaf deciduous forest ecosystem dominated by konara oak (Quercus serrata) and sawtooth oak (Quercus acutissima). The remainder of the area is composed of short, regularly mowed grass. Several sets of aircraft guidance lights are located in the grassy area. The area is divided east to west by a two lane, paved road .
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 19, 2010
- Accession Number
- ADA634748