Surface drainage system

Details Surface drainage system Surface drainage system

2011-03-22

2011-03-22

Will, Thomas B (Department: 3671)

Road structure, process, or apparatus

Drain or gutter

C404S004000, C405S036000

Reexamination Certificate

active

07909531

ABSTRACT:
A surface drainage structure formed above a subgrade may include an elongate drain conduit disposed partially within the subgrade. The elongate drain conduit may define at least one drain slot extending through a wall thereof. The structure may include a pavement layer with an exposed top surface and a drainage channel extending therefrom. The drainage channel may be in fluid communication with the drain slot of the elongate drain conduit. A method of forming the surface drainage structure includes placing the elongate drain conduit in the subgrade, forming the pavement layer, cutting an upper channel along the elongate drain conduit, and cutting a lower channel and the drain slot in the elongate conduit.

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