Almost every region has its own flood protection systems, but, considering their exceeded life span, most of them are not functional anymore. Those systems need to be renewed (repaired or even replaced) in order to work as they should. This work describes fundamental characteristics of defensive embankments in Central Posavina, but also existing projects of reconstruction and obligations and possibilities of financing reconstructive part of the embankment on Sava river. All the problems of flood protection systems are also thoroughly examined here. General criteria are defined and analysis that need to be done before selecting the renew method are listed. In this work is given an insight into globally used technological procedures of system renewal, but also methods that could be applied in flood protection system of our region are described and investigated.