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Designing Drainage for a River Rock-and-Concrete Stream Feature in a Public Space

Slope the concrete base ¼ inch per foot to avoid standing water. Eliminate flat spots and depressions. Small puddles between stones are inevitable but harmless if the overall slab drains positively. Proper grading is the single most important factor.

Landscaping and Design: Killing Weeds in River Rock: Glyphosate or Soil Sterilant?; Converting a Swampy Backyard into Usable Lawn; Building Durable Garden Steps: Stone vs. Concrete; River Rock Drainage Trench: Fabric, Standing Water, and Clay Soil Solutions; Backyard Pooling Over a Filled-In Pool: Drainage Options; Front Yard Swale Draining Onto a Concrete Walkway; Managing Downspout Drainage in a Small Front Planting Bed; Sealing River Rock for a "Wet Look" in Freeze-Thaw Climates (Zone 2b); Installing River Rock in a Flood-Prone Area; Drainage Ditch Rock Installation with Weed Barrier

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