ALTERNATIVE URBAN DRAINAGE CONCEPTS AND DESIGN

A System of INterconnected Infiltration POnds and Trenches (SINIPOT) i s presented as an alternative to classical solutions for the extension and/or renovation of urban drainage systems in Germany. In many citie s, modifications of the existing drainage network have been necessitat ed by restrictive pollution laws. For a catchment in the City of Gelse nkirchen, long term simulations with a hydrologic transport model have been performed for three different sanitation solutions. The most imp ortant comparison criteria are the Combined Sewer Overflow (CSO) quant ities and the induced flow pattern in the receiving waters (a small cr eek).