Civil · C-6RGH2

Typical Utility Trench Pavement Restoration

Materials

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A typical utility trench section incorporates compacted backfill, pipe bedding, and variable pavement restoration depending on existing surface conditions. For asphalt pavement over concrete, the restoration consists of a minimum six-inch concrete layer matching existing conditions over a minimum six-inch aggregate base course. For standard asphalt pavement, the section includes a minimum 1.5-inch asphalt surface course, a three-inch asphalt base course, and a minimum six-inch aggregate base course matching existing conditions. A type I separator geotextile lines the trench excavation. Trench width and pipe bedding details are referenced to separate sheets.

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