Civil · C-9KY4B

Storm and Sanitary Sewer Manhole Section

Materials

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A precast concrete storm or sanitary sewer manhole assembly rests upon an eight inch base course compacted to ninety-six percent per ASTM D-1557 beneath the manhole base. The barrel uses one, two, three, or four foot vertical sections as required, joined with grouted sections in place typically, supporting a three foot high cone section and adjustable grade rings as needed. A tamper proof manhole cover sits within a concrete collar surrounded by asphalt paving at finished grade.

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