A recessed concrete sump pit is cast into the concrete mat footing and wall assembly, with coordinates, size, and depth coordinated with mechanical trades to a maximum size of twenty-four by twenty-four by twenty-four inches. A galvanized steel grate with one-inch by three-sixteenths bearing bars at one and three-sixteenths inches on center and cross bars at four inches on center is supported by galvanized steel angles sized three by three by one-quarter inch. Each angle is secured with two one-half-inch diameter mechanical anchors per side. Bent reinforcing bars match the size and spacing of the concrete mat footing reinforcement, with three inches of minimum concrete cover and three inches of embedment.
SUMP PIT COORD SIZE LOCATION AND DEPTH W/ MECH (24"x24"x24" MAX) STL GRATE W/ 1" x 3/16" BRG BARS AT 1 3/16"oc AND CROSS BARS AT 4"oc GALV BENT BARS TO MATCH SIZE AND SPACING OF CONC MAT FTG REINF L3x3x1/4 W/ 1/2"ø MECH ANCHOR (2 PER SIDE) GALV CONC FTG CONC WALL SEE TYP ELEVATOR PIT DET FOR FTG REINF SIZE AND SPACING COVER 3" MIN 3" EMBED
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