Self-clearing Dam of the Water Reservoir from the Drift

This invention refers to hydrotechnical structures, in particular to hydrounits bottom water outlets and can be used on the dams, for avoiding the siltation of water reservoirs with river drifts. The technical result of the invention is in avoiding the underflooding the upper bief and in preservation of bottom flow intensity. In self-clearing dam of the water reservoir from the drifts crest 6 of a splash guard 4 has a weir 2 concentric arc profile, the upper edge of which is directed to the side of lower bief and is placed parallel to the weir 2 uppermost generating line in common vertical plane, and above the crest 6 of the splash guard 4 siphon 7 is placed, the end 8 of which directed to the upper bief is on the level of the splash guard upper end. 1 fig.