An extruded bituminous concrete curb class 3 is positioned on top of layered bituminous pavement with an intervening tack coat. The curb profile stands six inches high with a two-inch radius at the top, a nine-inch top width, a forty-eight-degree front slope, and a twenty-one-degree back slope transitioning to the finish grade lawn. Dimensions indicate a six-inch total height and a three-inch offset at the top alongside a one-inch base inset. The underlying pavement buildup rests upon compacted subgrade.
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