A retaining wall is a structure designed to resist pressure from nearby soil on an elevated road or highway.

Retaining Wall illustration

Illustration: Retaining Wall

 

Retaining Wall photo

Photograph: Retaining Wall

Source: The images above illustrate the components of a Retaining Wall regarding its functionality in a turnaround road.

A. The traffic rail keeps traffic on the roadway.

B. Wall coping provides a smooth finish to the top of the wall and supports the traffic rail.

C. The face of the wall is composed of pre-developed panels.