The project concerns the settlement of the two central streams (“B” and “C”) that pass through the settlement of the Municipal District of Olynthos of the Municipality of Polygyros. The state of the two streams, as recorded today, is characterised by the many shifts and interruptions of the riverbed, both by public works and by private planning. In the context of the project, it is planned to deepen and shape an appropriate cross-section of the two streams that pass through the settlement of Olynthos and end in the Olynthios River. The works include earthworks to deepen and shape the bed and construction of technical works, open and closed cullets.