The two blocks, one north of the Ciliwung River the other one on the south side, are differently affected by the river. The northern block touches the water on relatively short stretch where as the southern part has a large part of its boundary along the river edge. Both are in part flooded during the wet season, yet both of them have some areas which are high enough for keeping the water out and reducing flood damages to a minimum. First and foremost it is necessary to allow the river to expand and to provide it with a predictable area to flood during wet season. For this purpose the most exposed houses along the river bank are being removed in order to gradually terrace the terrain. In order to master this drastic situation a garbage collection depot is to be implemented into each block, preferably at its highest elevation to keep it from getting damaged by the yearly flooding.