This article highlights existing stormwater drainage problems. This article analyzes existing problems and proposes methods to improve the functioning of cities’ surface water drainage system. The stormwater drainage system is an integral part of the water supply and sanitation system and is designed for surface wastewater for diversion, subsequent contamination treatment, and discharge into the water body. Most cities in Russia are in a zone of excessive moisture, that is, areas where the moisture flow to the surface in the form of precipitation exceeds its flow through runoff and evaporation, which leads to the importance of adequately arranged sewage in urban areas. The lack of a competent approach to storm drainage construction is the main problem, requiring design solutions and measures to ensure runoff diversion in underdeveloped underground drainage systems.