Potential problems that may arise can be addressed successfully if direct human activity near the river will be treated systemically. River water is a course consisting of a number of factors: dam, dam, water flow intensity, cross section of the river, watercourse slope, etc.. Each element in some way influence the evolution of the system: the dam - the flow of water off the river, upstream water level rises, creating a pool of water, dam - a building made along the river, the river water's edge, which protects the site from flooding , corrects, directs the bed of the watercourse, water intensity - the amount of water in the river segment given a unit of time, usually measured in m³ / s cross section - the surface obtained by cutting bed river, watercourse slope - the portion of the river bed inclined to the horizontal.