Floods- Natural Disasters Quest Chain

My house is not at risk for flooding. I am kind of near a flood risk area but am far enough away that I have less than a 10% chance of my house flooding.

• The environment can help prevent flooding. Things like trees, ditches, etc. You can dig a ditch that leads off of a body of water and the ditch leads into a large open field. This way the water can just pool into the field and maybe ruin those weeds but this way you don’t get flooded. Trees can either be planted or they can be laid across a river or stream. When laid across a river it prevents little to no water from getting past so it floods sideways. When you plant trees the trees soak up all of the water and catch the water when it falls downhill. 
• Sustainable drainage systems are another way to prevent floods. For this to work you replace things like concrete with a material that absorbs the water. With something like concrete the water just runs off of it into a drainage system. Drainage systems work until there is tons and tons of rain and then they get overwhelmed. Materials that absorb rain would soak up all of the extra like a sponge. Buildings being designed so that water runoff hits the soil instead of concrete is also helpful. 
• A third way you can prevent flooding is with flood barriers. They are used more in areas that have tons of flooding but you can use them anywhere. The barrier is usually close to the sides of the river. These are not expensive but only work to a certain extent. 

My notes: Here