Wherever we are, we always need a drainage system in our neighborhood as they help to decrease the risk of flooding during a bad weather. There are two types of drainage system available, subsurface drainage and surface drainage. The former one is used to decrease excess water building up on soil mass whereas surface drainages are used to remove excess water from land reducing the risk of flooding and for agricultural purposes. But lately civil engineering consultants Melbourne are looking more towards improving the current drainage system, one such initiative is the introduction of sustainable drainage system. Why are they important? Well in the current drainage system, the water from rain and sewers are diverted to local watercourses, hence decreasing the quality of the river by polluting it and causing downstream flooding. This problem can be tackled through the introduction of the sustainable drainage system, which work by storing or reusing the surface water.
How does it work?
Sustainable drainage system has 2 stages, the first phase is the source control. In this phase, we aim at decreasing the amount of water entering the drainage system, the drainage system can store water from roofs and rain into a natural contour and save it so that it can be used in other ways. Next, filter trenches are placed in order to filter the incoming water before they are discharged to watercourses, thus improving the quality of water in the river. You can also add infiltration systems in order for water to soak into the ground thus preventing the drains from overflowing. That’s basically how this works, and this is not used only to prevent rivers from flooding but to prevent flooding in your houses too. This system would be highly beneficial if you live in an urban area that is affected by flooding constantly. However, as with anything else, there are some disadvantages to it. First of all, it can be kind of expensive to construct these drainage systems, a way you can cut down cost is by consulting cost-efficient engineering firms and by getting everyone in your neighborhood on board with this idea and split the cost. The second issue is that there’s an increased safety risk due to the presence of wetlands and natural contours, so one should be careful.In addition to flood control, this system can be aesthetically pleasing and can help improve the value of your house. This system is relatively easy to maintain and protects road structures. It has currently been used in Portland and the results are pretty good.