UFC 3-260-02
30 June 2001
Minimum Base-Course
Design Loading
CBR for Overruns
Heavy-load pavement
80
Modified heavy-load pavement
80
Medium-load pavement
80
Light-load pavement
50
Assault landing zone pavement
50
Auxiliary pavement
50
(2) Paved shoulders. Paved shoulders will be provided adjacent to runways, taxiways,
aprons, and pads where authorized by AFM 86-2. The remaining shoulder width will be constructed of
existing soils, select soils, or stabilized soils with a turf cover. Design the paved shoulders in
accordance with Table 3-1, Table 8-4, and Figure 10-27.
b. Army Airfields.
(1) Paved shoulders. Paved shoulders should be provided for airfields and heliport/helipad
facilities as designated in El 02C013/AFJMAN 32-1013/NAVFAC P-971. Design paved shoulders in
accordance with Chapters 2 and Figure 10-27. Use a 50-millimeter (2-inch) dense graded AC wearing
surface on a minimum 150-millimeter (6-inch) base consisting of 50 CBR material or better. The
remaining shoulder width will be constructed of existing compacted soils, select soils, or stabilized soils
with a vegetative cover or liquid palliative to provide dust and erosion control against jet blast and rotor
wash.
(2) Paved overruns. Paved overruns should be provided for runways and landing lanes in
accordance with EI 02C013/AFMAN 32-1013/NAVFAC P-971. Design the pave portion of overruns for
75 percent of the gross weight of the design aircraft and 1 percent of the design pass levels. The paved
overrun should also be checked for adequacy of supporting crash rescue vehicles. Use a 50-millimeter
(2-inch) dense graded AC wearing surface on a minimum 150-millimeter (6-inch) base consisting of 50
CBR material or better. The remaining overrun area will be constructed of double-bituminous surface
treatment on a 100-millimeter (4-inch) base course of 40 CBR material or better.
c.
Navy and Marine Corps Airfields.
(1) Overrun areas. Pave the overrun areas for a width of 61 meters (200 feet) or the width of
the runway if less than 61 meters (200 feet), centered on the runway centerline and for a length of
305 meters (1,000 feet), where feasible. Surface the overrun areas with an AC surface course. Design
the pavement thickness for 75 percent of the gross weight of the design aircraft at 200 passes, except
that a minimum 152-millimeter (6-inch) base course of 80 CBR or better will be provided.
(2) Blast protection areas. Design the pavement thickness of the blast protection areas for
200 passes at 75 percent of the gross weight of the design aircraft. Normally, these areas are
constructed of portland cement concrete for Navy and Marine Corps airfields; where operational
experience has shown asphalt surfacing to be satisfactory, use a minimum 76-millimeter (3-inch)
10-10
Previous Page
