This structural detail shows a concrete stair cast on grade with a supporting concrete fill and adjacent concrete slab. Reinforcing includes number 3 rebars spaced at eighteen inches on center each way within the concrete section, maintaining a two-inch minimum clearance. Dimensions indicate an eight-inch minimum footing width, a five-inch minimum waist thickness, and various stair run and riser configurations coordinated with architectural drawings.
5" MIN SEE ARCH DWGS SEE ARCH SLAB PER PLAN 1'-0" MIN 8" MIN 3" MIN 1 3 3/4" #3 @ 18"OC EA WAY 10" MIN 2'-0" 1'-0" FOR SIZE OF TREADS & RISERS SEE ARCH DWGS CONC FILL CONC SLAB SEE ELEV/PLANS 2" CLR MIN
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