Detention reservoirs are designed for rise interceptions of flow intensity exceeding the flow capacity of the discharge devices. With this follows gradual refill of the hemisphere reservoir, this results in a decrease of runoff size and a diminishing culmination. Detention reservoir designed in Raciborz will be located on the naturally valuable areas including grounds classified into Natura 2000 network and its influence will be seen at a flight of 230 km on the Odra River. The research analyzed the potential influence of the water management on the natural environment of the river valley. The flood heights are put together in the reservoir bowl. ...
