A six-inch concrete curb features one-foot curb openings spaced at ten feet on center along an asphalt concrete pavement gutter. The drainage system incorporates a facing class rock dissipater one foot thick and two feet wide at the curb openings, directing flow toward an adjacent earth swale with a two-to-one maximum slope. A magnified callout details the twelve-inch curb opening profile with forty-five-degree beveled edges.
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