Surface drainage system
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United States of America Patent
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Mar 31, 2015
Grant Date -
Aug 15, 2013
app pub date -
Mar 15, 2013
filing date -
Sep 20, 2007
priority date (Note) -
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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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