Assessment of riverbed erosion process of middle Odra River on Malczyce-Ścinawa section

The assessment was carried out on the basis of hydrometric parameters at the river gauging stations of Malczyce (km 304.8) and Ścinawa (km 331.8), as well as periodic measurements of the riverbed conditions performed by the Regional Water Administration in Wrocław. This analysis was supplemented by the measurement results of the Wrocław University of Environmental and Life Sciences concerning the bed load transportation on the Odra River section between Brzeg Dolny and Głogów, taking into account the erosion process of the riverbed pavement. The volume of eroded bed material in the period 1958-2005 equals about 4.5 million m3. The continual erosion has a negative impact on the navigation in the river as well as on the environment and agriculture in the valley. The solution to the problem consists in: o the one-time filling of the eroded areas with the appropriate material (on the section under survey), o the systematic feeding of the Odra riverbed with bed load, just below the Malczyce Weir, after the passage of annual floods.