The storm drainage system for the community consists of detention ponds, storm sewer, and open drainage ways. One of the open drainage ways is experiencing severe erosion and is in need of repair. It is anticipated that the repair may consist of grade control structures, restoring the invert to close to original elevation, defined trickle channel and stabilizing the side slopes. There are two segments of the channel. The downstream segment conveys storm flow from the east and south, the upstream segment conveys flows from the east only.