Depending on the
application and location of the fence/rail, it may affect the retaining wall
design with forces at the top of the
wall that could cause it to roll over (overturning). Allan Block has created a Fences Above Retaining Walls Tech sheet that covers the different location and installation options.
One way to account
for the overturning forces is to use a product called Sleeve-It by Strata that will reroute the forces away from the wall.
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