Landscape · L-ZFFQH

Rain Garden and Sidewalk Edge Detail

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A rain garden section adjacent to a sidewalk features amended soil, rain garden mix, and a top layer of mulch. The basin is lined with a filter fabric and an impermeable liner over aggregate, with a minimum 12-inch depth. A drainage pipe is bedded in sand below with a minimum 18-inch cover, adjacent to an electrical main by others. The civil scope sidewalk slopes toward the rain garden with a minimum 5-foot setback. Notes require verifying minimum electrical conduit coverage with MEP, setback from the building face with structural engineers, and backfilling simultaneously with civil scope to avoid erosion.

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