Flood map and mitigation

At this moment it is not known where floods will occur, and there is little data available on past floods. It is therefore important that basic information be gathered on past floods and that a flood hazard map be created that highlights areas potentially threatened by flooding.

Currently there is a time delay before an emergency report reaches the disaster management centres. However, the delay could be reduced considerably if endangered settlements had emergency communication lines. This would also allow an early warning system to be used to warn villagers of approaching danger. But first the settlements that are in danger need to be identified, and a flood map would provide authorities with information about when and where floods are likely to occur. Currently the aid agencies are not aware of which areas are safe from further flooding, and which would be ideally located to help flood victims.

A flood hazard map is the primary input map for developing and identifying locations for mitigation measures. Dams could be built to protect densely populated areas, or to allow the authorities to start reforestation measures to slow down water runoff. The map will not only assist identification of locations to build dams, levées or flood walls, but will, more importantly, directly indicate where not to build hospitals, schools, bridges, etc., thus preventing wasting reconstruction money on doomed infrastructural locations.

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