Low Impact Development Program
Welcome to the WSU Puyallup Low Impact Development Research Program
An extensive body of research conducted in the Pacific Northwest and the U.S. indicates that land development is one the largest threats to our nations aquatic resources, and that conventional stormwater management practices alone are inadequate to fully protect streams, wetlands, and other aquatic resources in the region (Booth, Hartley and Jackson, 2002).
Best available science suggests that a broad category of new stormwater management practices that come under the heading of low impact development (LID) or green stormwater infrastructure (GSI) can improve flow control, water quality treatment and protection of receiving waters. Accordingly, many states across the U.S. are considering adoption of LID practices. The use of LID practices will be required for managing stormwater in western Washington over the next few years as the new NPDES permit is phased in.
While the decentralized LID approach shows promise to better manage stormwater, significant gaps remain in our understanding of the water quality treatment and flow control capabilities of bioretention, permeable paving, green roofs, and other LID practices. Additionally, data is needed to evaluate the performance of LID practices in prolonged wet conditions and soils with low infiltration rates typical in western Washington.
The mission of the WSU Puyallup LID Research Program is to reduce the impacts of stormwater on streams, lakes, wetlands, and coastal areas through effective, research-based application of LID management principles and practices.The mission of the program is accomplished through several objectives including:
- Develop a living laboratory with full-scale, replicated LID management practices that serves a center for LID demonstration and education.
- Conduct detailed and long-term research examining:
- Flow control and water quality treatment characteristics of permeable pavement and bioretention systems.
- Physical and biological characteristics of bioretention soil.
- Physical and biological influence of plants on bioretention flow and water quality treatment performance.
WSUP LID Research Program is one of the largest installations in the nation focusing on the rapidly expanding field of low impact development or green stormwater infrastructure and offers the unique capability to conduct long-term research on full-scale, replicated bioretention and permeable pavement facilities.
LID Project DatabaseSharing lessons-learned and project successes is as important as sharing research data to that your project is based on. As part of our information-sharing efforts, we are compiling a database of Low Impact Development Projects in the Northwest.
View the interactive map of our project database now!