Drainage Study Questions and Answers with Paul Hightower
Basically, it’s a study of the area’s elevation, in this case Unit 4’s area, to assess the property within that area and to show the proper drainage areas and directions of flow. It will show what/where it is needed to make the water flow properly. The full scope of the study is to develop a drainage area map for the major drainage paths within Unit 4. The drainage areas will be delineated such that peak flows in the 25-year and 100-year storm events will be calculated at various points along the path, such as road crossings.The result of the study is a map that shows flow patterns, drainage paths, contributing drainage areas and peak flows for the 25-year and 100-year storm event. As BCWCID #2 and County construct roads within Unit 4, this drainage study will be used to appropriately size required culverts and roadway ditches. Additionally, as lots are developed within Unit 4, homeowners and home builders can use the map to see drainage paths and avoid building homes in those paths.
Per engineering, the goal is for the study to be complete by the end of this year.
The results of the study allow for culverts and ditches to be properly sized as roads are constructed within Unit 4. Additionally, as lots are developed within Unit 4, homeowners and home builders can use the map to see drainage paths and avoid building homes in those paths.
Utilizing available County/State topography data, drainage areas will be delineated, and engineering calculations will be performed to determine 25-year and 100-year peak flows.
It allows for culverts and ditches, to be properly sized to channel the water through the neighborhood and away from properties, to the river, streams, or ponds.There have been instances in the past where homes were built in existing drainage pathways, which ultimately leads to drainage issues, causing flooding or back-ups, that could have otherwise been avoided.