Humans cannot stop the rains from falling or stop flowing surface water from bursting its banks. These are natural events, but we can do something to prevent them from having great impact.
Living in Saskatchewan & Alberta, we are all to familiar with rivers and lakes melting with our high amounts of snow in the winter we receive many different warnings in the early-mid spring about the rising water levels, but have you ever looked into what you could do to prevent your home from flooding if you live near the water? In Saskatchewan you can check online to see if you are at risk of high water levels that could lead to future flooding
In some places, retaining walls levees, lakes, dams, reservoirs or retention ponds have been constructed to hold extra water during times of flooding.
It is important that builders acquire permission before buildings are erected. This will ensure that that waterways are not blocked. Also drainage systems must be covered and kept free from objects that chock them. This way, water can quickly run through if it rains and minimize any chance of town flooding. Drainage systems should also be covered to prevent litter from getting into them.
Trees, shrubs and grass help protect the land from erosion by moving water. People in low-lying areas must be encouraged to use a lot of vegetation to help break the power of moving flood water and also help reduce erosion.
In many developing countries, drainage systems are chocked with litter and people have little knowledge of the effects that can have during a rain. When it rains, waterways and culverts are blocked by massive chunks of litter and debris, and water finds its way into the streets and into peoples homes. Education is therefore very important, to inform and caution people on the dangers of floods, what causes floods, and what can be done to minimise its impact.
These are small reservoirs built and connected to waterways. They provide a temporary storage for floodwaters. This means in an event of flooding, water is drained into the basin first, giving people more time to evacuate. It can also reduce the magnitude of downstream flooding.