applications
armoured
bag
ballast
barricades
berms
build
bunkers
burlap
constructed
control
counterweight
damaging
dikes
effective
empty
erosion
filled
flood
fortification
hessian
inexpensive
labor
levees
light
materials
military
polypropylene
proper
protection
purposes
recede
sack
sand
sandbag
shielding
site
soil
storage
sturdy
tanks
transportaion
trenches
vehicles
volunteers
walls
war
water
weight
zones