In
construction and
civil engineering, a
borrow pit, also known as a sand box, is an area where material (usually
soil,
gravel or
sand) has been dug for use at another location. Borrow pits can be found close to many major construction projects. For example, soil might be excavated to
fill an embankment for a
highway,
clay might be excavated for use in
brick-making, gravel to be used for making
concrete, etc.