Watershed-level Analysis of Urban Raingarden Performance

Abstract

Urban flooding became to be a big issue for many cities in the world due to the urbanization. Best Management Practices (BMP) are considered to be an economically friendly solution for the urban storm water problem. The City of Kansas City began the project of "10,000 Raingarndens in Metropolitan Area" in 2008. For the project, there are a test area and a control area. Both have similar drainage areas and similar precipitation. In the test area, there are 135 rain gardens completed in June 2012. There are four flow meters to monitor the flow rate in the combined sewer. This analysis examines the watershed-level runoff response from the rain garden installation.