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Walls made by filling large baskets made of wire with rock or other material. Used in situations where drainage is critical, and aesthetics may be a consideration.

Walls constructed with layers of soil and reinforcing materials (e.g., geogrids). These are commonly used for highways and bridge abutments.

A retaining wall that is stabilized by anchors driven deep into the earth and attached to the wall. Suitable for supporting high loads and when space restrictions prevent the use of wider structures.

A type of gravity wall constructed from interlocking, precast concrete or timber components. They create a cellular structure and are often used in garden terracing or where vegetative cover is desired.

Long, thin, steel or wood sections driven into the ground to retain soil or water. Often used in temporary works, cofferdams or to retain soil in waterfront structures.

A wall that is fixed at its base and free at the top, using a cantilever action to hold back soil. Often used for intermediate height walls and where a solid base is available for the foundation.

Similar to a cantilever wall but with thin vertical concrete walls called counterforts to support the main wall. They are used where high lateral pressures are expected.

A type of retaining structure that relies on its own weight to resist the lateral pressure of soil. Typically constructed from concrete or stone; used in landscaping and where the wall height is not excessively high.

A technique where soil slopes, excavations or retaining walls are reinforced by the insertion of steel bars called 'nails'. Applicable for stabilizing existing slopes and excavations.