Washington State Department of Ecology
The Nature Conservancy
Puget Sound Partnership

Collaboration is at the heart of the Floodplains by Design partnership. While the Washington State Department of Ecology, The Nature Conservancy and the Puget Sound Partnership lead the initiative, the hallmark of Floodplains by Design is that the supported projects are built from the ground up by local project proponents and community stakeholders.

The three lead organizations support these integrated floodplain projects through regular workshops and networking events, project review and the administration of the state’s Floodplains by Design grant program. Collectively the partnership is pursuing a vision of effective, collaborative management across Washington’s floodplains.

We seek out places and projects where floodplain protection and restoration will provide the greatest benefits to people and nature; projects where people interested in reducing flood risk and people interested in ecosystem restoration are working side by side with landowners and others to implement a local vision for all values. To get involved, email us at


Current and Previous Project Proponents

Chelan County
City of Auburn
City of Ellensburg
City of Orting
City of Seattle
City of Stanwood
City of Yakima
Clallam Conservation District
Clallam County
Jamestown S’klallam Tribe
King County
Kitsap County
Mason County Conservation District
North Olympic Salmon Coalition
Pierce County
Skokomish Tribe
Snohomish Conservation District
Snohomish County Dike District 7
Snohomish County Surface Water Management
Stillaguamish Tribe
Tulalip Tribe
Washington Department of Fish and Wildlife
Wahkiakum County
Whatcom County Flood Control Zone District
Yakima County
With funding support from the Washington State Department of Ecology, U.S. Environmental Protection Agency, Puget Sound Partnership, National Oceanic and Atmospheric Administration, Boeing Company, National Fish and Wildlife Foundation and The Russell Family Foundation.