Landscape · L-CAKCC

Concrete Retaining Wall with Drainage Detail

Materials

Elements

Walls Retaining Walls Drainage Site / Paving Reinforcing

About this detail

This retaining wall detail features a poured-in-place concrete wall set on a reinforced concrete footing over a six-inch class two aggregate base and compacted subgrade. The wall stem is reinforced with number four rebar at twelve inches on center both ways, and the footing contains a number four rebar cage at eighteen inches on center with four number four bars top and bottom. A twelve-inch wide drain rock trench wrapped in filter fabric encases a perforated pipe that connects to the storm drain per civil drawings. The exposed concrete surface receives a light sandblast finish with a surface retarder, and the top corner has an eighth-inch radius. Adjacent paving sits six inches below the top of the wall on one side, while planting and a level grade meet the opposite side.

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