Canyon Acres Storm Drain Study

The project includes doing a hydrology study to determine the capacity that the designed storm drain must withstand. The hydrology study involves doing a delineation of the observed watershed to determine the area in which the storm drain captures runoff from. Hydrologic calculations were performed, along with software such as HEC-HMS, that uses land and soil type data to determine the peak flows that is experienced at various points within the existing storm drain alignment. These peak flows were then used to size the designed storm drain (hydraulic analysis), which was primarily done using the Water Surface Pressure Gradient (WSPG) software. Geometry of the existing storm drain alignment was modeled in WSPG, where the calculated peak flows from the hydrology study were inputted. The storm drain geometry was resized to ensure that the water level within the alignment meant all of the requirements.