Gravity poured concrete retaining walls gravity retaining walls depend on their own weight and any soil resting on the concrete in resisting lateral earth forces.
Poured concrete retaining wall height.
In general the top of the stem of any cast concrete retaining wall should not be less than 12 inches for the proper placement of concrete.
They are generally economical up to 10 feet in height for cast concrete structures.
Concrete retaining wall footing size the depth to the bottom of the base slab should be kept at a minimum of two feet.
Poured concrete foundation walls that are less than 8 feet tall and have soil outside that is 6 or 7 feet deep against the wall can often be 8 inches thick and function quite well.
Taller walls backfilled with heavier soil risk failure unless correct design methods are followed.