[NBS Card] Rainwater Management
Traditionally, the management of stormwater has relied on pipes and sewers. Due to limited storage capacity, these systems are susceptible to overflowing during storm events, presenting risks of harmful contamination to the environment, and causing damages on buildings. Nature based rainwater management is designed to collect runoff water and relieve the pressure on sewer systems. This is done by handling the water on the terrain surface and including the hydrological performance of nature. They are based on retention and infiltration principles, which mitigates flood problems, improve quality of water and recharge underground watercourses as well as promoting and improving both biodiversity and the wellbeing of people. These NBS are very flexible and includes various possibilities for site specific adaptation, in terms of scale, technical solution and combination with other programs.