A drain pipe passes through a concrete walk and curb assembly, featuring a drain transition manifold and a transition manifold and pipe schedule table. A one-quarter-inch galvanized steel angle extends a minimum of four inches on each side of the manifold at the curb penetration. One-eighth-inch asphalt impregnated sheathing is cut to fit and surrounds the pipe as typical at all pipe-curb penetrations, reinforced with number four rebar extending thirty-six inches past the opening. The drain pipe maintains a minimum slope of one-eighth inch per foot, with two inches minimum ground cover at the drain pipe and three inches minimum cover at the curb. Finish paving is coordinated per the site plan.
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