As a Professional Engineer in an environmental engineering firm, you are asked to provide an outline of steps in designing a storm water detention facility for a neighborhood watershed. The outflow from the detention pond needs to be taken under a road through a culvert. You are given: (a) the USGS topography map, (b) NRCS soil survey and land use map and c) road elevation and tailwater elevation. Based on this information briefly guide me through the process of developing a detention pond and the culvert for this urban watershed.