These 49 technical papers discuss the state of the art in urban stormwater management technology. Using a multi-disciplinary approach, scientists, researchers, practicing engineers, and administrators detail the linkages between various BMP designs and their performance and ability to mitigate the impact of urbanization on receiving waters. Topics covered include: urban watershed trends; regulatory and institutional perspectives; BMPs and linkages to in-stream integrity; need for and examples of in-stream controls and habitat enhancements; policy issues related to zero and de-minims impact development policies; design for sustainable water resources; information and monitoring needs to evaluate impacts mitigating potential of BMPs; and experience and science outside the United States. Cover photo includes: Stream stabilization in Denver, Colorado, as a part of the restoration of lower Goldsmith Gulch. Photo is used with permission of the Urban Drainage and Flood Control District.