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Flood hazards

Learn about mapping and studies of flood hazards within King County's river and stream corridors.

Floodplain maps

View flood maps and see your flood risk.

Channel migration hazards

Learn about channel migration to protect yourself and your property.

Landslide hazards and maps

Learn about the locations and types of landslides that can occur in King County river corridors.

Flooding in King County watersheds

Learn about flooding, how you can protect yourself from flooding, and flood-related projects in your watershed.

Related Topics

Flood hazards

Maps and studies in our river and stream corridors.

Flood services

Find services, evaluate risk, prepare for a flood and find real-time flood data.

Flood warning alerts

Information about the King County Flood Warning System.

Be ready for a flood

Protect yourself, your loved ones, and your home.

Road closures

View an interactive map of road closures in King County.

Get sandbags

Find free sandbag distribution sites.

Stormwater services

Information about stormwater and surface water management in King County.

Watershed flooding

Information and resources for flooding in King County watersheds.
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