The Komsomolskoe Lake is located at the center of the city of Nizhnevartovsk in Siberia. The precipitation as well as drainage of water from the zarea have created a water reservoir. Due to the submersion of organic materials in this location over the years, the water in the lake have become polluted and murky. In order to improve the ecological conditions of the Lake and its surroundings, it was decided to clean and deepen it. Since the lake is located in the center of the city, the project had to be carried out within a short time period and with minimal impact on its surroundings.