Retaining Wall Base Course Installation

To have a level, attractive, well-built MSE wall (block retaining wall) the first course of wall blocks MUST be perfect. The first course must be straight and level, both side-to-side and front-to-back. Any errors in the base course become amplified as the wall is built up.

For the leveling course, you need to use a well graded stone that is compacted in place. After compaction, each block should be carefully installed making sure that it is level and it is at the exact same height as the block next to it. Yes – this takes some time, but makes the rest of the project go MUCH more quickly!

Joseph Kowalski, P.E.
Current State PE Registrations