Flooding is a part of life in the Snoqualmie Valley, but flooding made worse and less predictable by human intervention must be addressed if farms, businesses and residents are to thrive. Development activity upstream and downstream can result in flood devastation from any combination of higher peak flows, slower drainage, less reliable flood warning and monitoring tools, and late season flooding, which can destroy spring plantings.

The SVPA works with community members, landowners, King County, Washington State Department of Ecology, Flood Control District, King Conservation District, and other nonprofits to ensure that the policies and standards for flood management, habitat restoration projects and recreation uses are compatible with long term viability of the lower Valley.