Attachment 15
routes and procedures for wing-walkers should be included in the safety plan if adequate wingtip
clearance cannot be provided.
A15.6.7.4. Excavation And Trenches. Along runways, excavations and open trenches may be
permitted up to 200 feet from the centerline of an active runway, provided they are adequately
signed, lighted and marked. In addition, excavation and open trenches may be permitted within
200 feet of the runway centerline on a case-by-case basis, that is, cable trenches, pavement tie-ins,
etc., with the approval of the installation commander. Along taxiways and aprons, excavation and
open trenches may be permitted up to the edge of structural taxiway and apron pavements provided
the drop-off is adequately signed, lighted and marked.
A15.6.7.5. Stockpiled Materials. Extensive stockpiled materials should not be permitted within
the construction activity areas defined in the preceding four sections.
A15.6.7.6. Maximum Equipment Height. FAA Form 7460-1, Notice of Proposed Construction
shall be submitted when equipment is expected to penetrate any of the surfaces described in
attachment 6.
A15.6.7.7. Proximity of Construction Activity to Navigational Aids. Construction activity in the
vicinity of navigational aids requires special considerations. The effect of the activity and its
permissible distance and direction from the aid must be evaluated in each instance. A coordinated
evaluation by the AM, CE, SE, and SC is necessary. Particular attention needs to be given to
stockpiling materials as well as to the movement and parking of equipment which may interfere
with line-of-sight from the tower or interfere with electronic emissions.
A15.6.8. Construction Vehicle Traffic. With respect to vehicular traffic, aircraft safety during
construction is likely to be endangered by four principle causes: increased traffic volume,
nonstandard traffic patterns, vehicles without radio communication and marking, and operators
untrained in airfield procedures. Because each construction situation differs, airfield management
must develop and coordinate a construction vehicle traffic plan with airport users, air traffic control
and the appropriate construction engineers and contractors. The plan, when signed by all
participants should become a part of the contract. Airfield Management and Safety are responsible
for coordinating and enforcing the plan.
A15.6.9. Limitation on Construction. Open flame welding or torch cutting operations should be
prohibited unless adequate fire and safety precautions are provided and have been approved by the
fire chief. All vehicles are to be parked and serviced behind the construction restriction line and/or in
an area designated by the contract. Open trenches, excavations, and stockpiled material at the
construction site should be prominently marked with orange flags and lighted with flashing yellow
light units during hours of restricted visibility and/or darkness. Under no circumstances are flare
pots to be near aircraft operating areas. Stockpiled material should be constrained in a manner to
prevent dislocation that may result from aircraft jet blast or wind. Material should not be stored near
aircraft operating areas or movement areas.
A15.6.10. Marking and Lighting Closed or Hazardous Areas on Airports. To ensure adequate
marking and lighting is provided for the duration of the project, the construction specifications should
include a provision requiring the contractor to have a person on call 24 hours a day for emergency
maintenance of airport hazard lighting and barricades. See AFI 32-1042 and ETL 94-01, and
AFMAN 32-1076 for marking and lighting requirements for closed pavement areas.
A15.6.11. Temporary Runway Threshold Displacement. Identification of temporary runway
threshold displacements should be provided as indicated in AFI 32-1042 and AFMAN 32-1076.
A15-6
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