2024 King County Flood Management Plan
2024 King County Flood Management Plan
Flooding happens in King County. Flood risks are managed through the King County Flood Management Plan. Updating the plan in 2023 lets us plan for the future together. Complete a survey to share your ideas on how to build a flood resilient future. You can also use this site to learn about flooding in King County and resources available to reduce flood risks.
Interpretation and translation services are available to you at no cost. If you need them, please contact us at 206-263-2677.
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Let's plan for flood resilience together
Flooding is our region’s most common natural disaster and is a part of life in King County. Flooding can be devastating to neighborhoods. Floods damage homes, destroy personal property and put lives at risk. Floods also affect access to jobs, stores and schools and can damage community open spaces. Flooding is likely to get more frequent and severe with climate change.
Natural disasters affect people differently, with some having a harder time recovering, or perhaps not recovering at all. Building flood resilience means that we are increasing the ability for people and communities to recover quickly from whatever impacts flooding brings to our doorsteps. Flooding will never disappear in King County, but being prepared can reduce the risks for communities, families, and individuals.
The flood plan guides how we manage flood risks and how the benefits of our efforts are distributed across the county. Information on this site is organized into five sections:
- Flooding and building flood resilience - background information and resources
- Planning for flood resilience - introduction to the plan, the process for updating the plan, and why the plan matters
- Share your thoughts - survey questions to inform the scope and actions identified in the plan
- Meetings and events - venues to learn about flooding and share your local insights
- What we've heard from you - a report on the feedback we've recieved so far
Sign up to receive email updates about the flood plan!
Snoqualmie River flooding near Duvall in December 2015.
For general information or assistance with questions about flooding, please contact:
King County River and Floodplain Management Section
For questions about the flood plan update, please contact:
For questions about flood plan community engagement opportunities or how to submit comments, please contact:
Flood Plan Community Engagement Coordinator
October 2021 - September 2022
July 2022 - December 2023
Analyze technical, policy and programmatic elements; assess hazards and risk; develop action plan; develop plan content
October 2022 - December 2023
Phase 1: Community and partner engagement
October 2022 - June 2023
Gather community input to establish a shared vision for the flood plan. We are asking about flooding experiences, community priorities, and needs to build flood resilience.
- November 7 - December 9, 2022: comment period on environmental impact statement (EIS) scope for State Environmental Policy Act review process (complete)
Phase 2: Community and partner engagement
July 2023 - September 2023
During this phase we will share specific strategies and priorities that are emerging and ask for your feedback and ideas on them. We will also share what we heard from you during Phase 1 and how your input is guiding the contents of the flood plan.
Phase 3: Community engagement
October 2023 - December 2023
We’ll share the draft flood plan and ask for your review and feedback to make sure we’re on the right track.
- December 2023: comment period on draft flood plan
- December 2023: comment period on draft environmental impact statement (EIS) for State Environmental Policy Act review process
Propose plan to King County Council
December 2023 - February 2024
King County Council considers plan
January 2024 - September 2024