In the area you have selected (Brazil) urban flood hazard is classified as high based on modeled flood information currently available to this tool. This means that potentially damaging and life-threatening urban floods are expected to occur at least once in the next 10 years. Project planning decisions, project design, and construction methods must take into account the level of urban flood hazard. The following is a list of recommendations that could be followed in different phases of the project to help reduce the risk to your project. Please note that these recommendations are generic and not project-specific.
Climate change impacts: In western Brazil, medium confidence in an increase in extreme precipitation and an increase in the number of extreme rainfall events. Elsewhere, model projections are inconsistent in changes in rainfall. River flood hazard may increase in these areas as a result of climate change. It may be prudent to design projects that are robust enough to enable continued operation in case of increased rainfall, particularly where hazard is already considered to be high.
For further information the following resources could be consulted: