There is a wide variety of surface, subsurface and climatic conditions, it is not
practical to establish design data to cover all situations. The allowable soil loading and
the exact type of subsurface construction to be used must be decided for each
individual case after careful consideration. The same rules and precautions shall be
used in selecting foundation sites as would be applicable in designing and constructing
foundations for other structures of comparable magnitude. Typical Foundation types
are earth foundations without a ringwall, earth foundations with a crushed stone and
gravel ringwall, earth foundations with a ringwall and slab foundations