A quarter-inch steel diamond plate spans a recessed concrete trough within a concrete sidewalk, secured with three-eighth-inch countersunk fasteners set flush to the adjacent paving and finished with paint. An expansion joint runs adjacent to the assembly, with the entire trench set flush with the walking surface. A cow's tongue overflow drain is located at the building face directly above the trench.
4" 6" 2' - 0" 6" 2" 2" 1/4" STEEL DIAMOND PLATE SET WITH 3/8" FASTENERS COUNTERSUNK FLUSH TO ADJACENT SIDEWALK, PAINT. EXPANSION JOINT TYP. CONCRETE SIDEWALK FLUSH W/ PAVING COW'S TONGUE OVERFLOW DRAIN @ BUILDING FACE ; / 2 J. V
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