An existing structural wall supports a manhole casting adjusted to match the finished grade using precast concrete rings and mortar bedding. Existing concrete or brick is removed or added as required to raise or lower the frame. The existing casting is removed and reinstalled to align with the new finish grade elevation.
REMOVE EXISTING CONCRETE OR BRICK AS REQUIRED AND RESET FRAME PLACE PRECAST CONCRETE RINGS AND MORTAR AS REQUIRED AND RESET FRAME TO MEET FINISHED GRADE FINISH GRADE FINISH GRADE EXISTING GRADE REMOVE AND REINSTALL EXISTING CASTING TO MATCH FINISHED GRADE RAISE LOWER MORTAR BEDDING EXISTING STRUCTURAL WALL
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