2-5.
DIKE CONSTRUCTION
Figure 2-4.
Diked Site Area
The site area must be diked to stop the flow of water in case of rupture
or leakage.
The tank may be filled before it is diked if the situation
d i c t a t e s .
Normal procedure is to dike the site area before filling. An
erected dike (Figure 2-4) should have the following characteristics:
o At least a 5-foot (1.53 meter) working area between the tank and the
walls.
o Wall height should be 3 feet (.92 meters). This w1ll provide an
internal volume of at least 3875 cubic feet (108.5 cubic meters), or
28,700 gallons.
o Halls protected against erosion with sod or stone.
o A d r a i n p i p e a n d v a l v e a t t h e l o w e n d
o f t h e s i t e t o r e m o v e a c c u m u -
lated rain water.
T h e d r a i n s h o u l d n o r m a l l y b e k e p t c l o s e d . I t - c a n
b e o p e n e d a s n e e d e d .
2-7
