Installation Instructions
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Step 1 - Grid Placement
Cut geogrid to required lengths and place the grid as close to the face of the wall without exposing
it when following the contour of the curve. Place the next course of SRW block, taking care that the
grid sits at and is secured between the units. Each geogrid length should be laid perpendicular
to the wall face and pulled tight to remove any slack. The geogrid should never overlap on top of
the Clifton or Denver Units. Behind the Clifton or Denver Units, the geogrid will overlap because of
the convex curve. In these areas place 3" of ll material to separate. Never compact directly on the
geogrid.
Step 2 - Successive Grid Layers
Repeat Step 1 when installing additional layers of grid. Fill cores and the drainage zone with
aggregate material on every course. Place the next layer of inll soil on top of the geogrid by
beginning near the wall fascia and spreading it back across the grid. Backll in 3"-6" lifts, using only
vibratory plate compactors within a 3' area from the back of the wall. Place soil in the rest of the
inll area in maximum lifts of 6" based on the rating of your compaction equipment and compact to
obtain a 95% Standard Proctor density.
BASIC GEOGRID REINFORCEMENT - CONVEX CURVE
RETAINING WALLS