A cast-in-place concrete stair section bears on ninety percent compacted fill over subgrade. The stair slab is reinforced with number three bars spaced at twelve inches on center each way, featuring number three nosing bars typically placed at each tread edge. A concrete footing at the base measures ten inches minimum width with a one-foot minimum depth, reinforced with two number four rebars. The assembly interfaces with adjacent concrete slab or paving as indicated on the site plan, with step profiles coordinated per architectural drawings.
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