Plumbing · P-HE3CW

Concrete Vault Plan and Grade Ring Elevation

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The assembly consists of a reinforced concrete vault shown in plan view measuring 5 feet 10 inches by 4 feet 10 inches externally with 6-inch thick walls, reinforced with number 4 steel bars at 12 inches on center each way. All concrete requires a minimum compressive strength of 4500 PSI with a maximum aggregate size of 3/4 inch, positioned mid-way within the concrete section. A separate circular grade ring with a 2-foot 10-inch diameter includes a number 4 bar running through the circumference and heights of 4, 6, or 12 inches. Joint details illustrate the vertical concrete wall connection, and notes specify sealing all inspection holes and tops with an asphalt sealer over a level, debris-free subgrade.

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