Patent ID: 7993076

Claim:
A bluff penetrating outfall drainage system to remove surface water from atop a hill with a bluff on a side of the hill comprising: a catch basin located behind the bluff; a cover structure abutting the catch basin, the cover structure penetrated by a channel, the cover structure having an entrance structure coupling the channel with an opening in the catch basin, wherein the entrance structure is sculpted, round and smooth; a reducer pipe having a large aperture in one end, a small aperture in the other end and a gradually reducing aperture in-between the large and small apertures, the end with the large aperture coupled with the channel; a catch basin drain pipe coupled with the small aperture end of the reducer pipe, the catch basin drain pipe extending through the hill to an outfall point near a toe of the bluff; and a breathing pipe coupled to the catch basin drain pipe, the breathing pipe extending to above a surface of the hill.