This assembly consists of a precast storm drain box with a minimum width of 36 inches and a variable depth. The top of the structure is finished with grade rings supporting a 30-inch by 30-inch bicycle-safe inlet grate rated for H-20 traffic loads. Internal access is provided by ladder rungs cast into the wall of the basin. The installation must comply with city standards and specifications, with the overall box size determined by the diameter of the connecting storm drain pipe.
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