Investigation of the current state of the tailwater of the Nizhny Novgorod hydroelectric power station, taking into account channel deformations and the effect of dredging

Integrated waterworks on rivers have a great impact the state of natural waterways. With commissioning hydroelectric facilities and reservoirs that regulate river flow, new hydrological channel regime is created; intensity nature processes change. The regulation runoff by hydropower systems introduces changes in travel navigation conditions question, especially lower pools. In this paper, an assessment made current pool Nizhny Novgorod power station, which one areas limiting throughout entire unified deep-water system Russian Federation. results studies effect dredging level tailwater are also presented.