Survey for Sammamish River Capital Investment Strategy

In 2023, King County is developing the Sammamish River Capital Investment Strategy (Sammamish River CIS). The strategy will guide future projects to reduce flood risks and protect fish and wildlife habitat...

About the Sammamish River

The Sammamish River corridor runs 14 miles from Lake Sammamish to Lake Washington. It passes through rural and suburban communities and commercial, agricultural and recreational areas.  

Over the past few decades, the cities of Redmond, Woodinville, Bothell and Kenmore have grown around the river. This growth has also brought more ways for people to walk, bike, fish, boat, float, picnic, gather and play in the valley. Unfortunately, some of these new land uses have degraded the river.  

The Sammamish River is within the aboriginal lands of Coast Salish People. Kokanee salmon, once an important local food source and cultural symbol to the Coast Salish, are nearly gone from the valley today. This is due to land use change and its impact on fish habitat.

Other fish species in the Sammamish River include Chinook salmon, which are protected by federal, state, and local laws. However, the Sammamish River has many problems that make it difficult for fish and wildlife to thrive. Straightening deepening of the river and removing vegetation have degraded the health of the river. 

Kokanee salmon in Ebright Creek (Courtesy of Roger Tabor, USFWS).

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Map of the Sammamish Watershed

Did you know that the Sammamish River was once part of an ancient lake connecting Lake Washington and Lake Sammamish?

For an interactive Sammamish River history experience visit: Sammamish River StoryMap.

Interpretation and translation services are available to you at no cost. If you need them, please contact us at or 206-477-4607, by: 7/17. 

Hay servicios de interpretación y traducción a su disposición sin costo alguno. Si los necesita, póngase en contacto con nosotros mandando un correo electrónico a o llamando a 206-477-4607, hasta esta fecha: 17/07. 

我們可以向您提供口頭翻譯和書面翻譯服務,並不向您收取費用。如您需要,請在07 月 17 日 前與我們連絡,發電子郵件至 或致 206-477-4607