You now should understand what our Standard unit is and what it looks like.

You should also have an understanding of the types of segmental retaining walls:

Unreinforced walls , which rely on the weight of the wall units alone to resist soil loads.

Reinforced walls , which use horizontal layers of geogrid soil reinforcement to stabilize the soil behind the wall units.

The next section, Wall Components, includes all the components of an SRW .