Site Preparation:
Before construction is started, utility locates should be done. Excavate for the wall to the desired width and depth to the final grade. Once the excavation for the wall is completed, start trenching the base of the wall at the lowest elevation. This trench should be at approximately 6 to 24 inches below the grade. The trench should then be compacted to 95% Standard Proctor or greater or on native soil. After the trench is complete, place approximately 4 to 8 inches of free-draining aggregate (recycled concrete 1½ x 3/4) for leveling the base. |
