in Figure 3-5. The surface of each layer is roughened before the next is added. If
timber sufficient for building a crib is not available, the mound Is constructed to the
desired height in 1-foot layers as described. The pit is then dug into the mound. It may
be necessary to brace the walls with wood, sandbags, or other suitable material to
prevent cave-ins. The size of the base of the mound will depend on the type of soil in
the area and should be made larger if the slope is too steep. It may be necessary to
build steps up the slope.
NOTE: Construction of latrines should be coordinated with the Corps of Engineers
Figure 3-5. Mound latrine.
Flyproofing and closing. The mound latrine should be fly-proofed in the
same manner as is the deep pit latrine. It also is closed in the same manner,
as is the deep pit latrine.
b. Burn-Out Latrine. The burn-out latrine (see Figure 3-6) is particularly
suitable for jungle areas with high water tables, or when soil is rocky, hard, or frozen. It
was particularly successful in some parts of Vietnam. It should not be used, however,