Willomoor Floodplain Restoration Project

Historically, the Sammamish River meandered through a wide swath of valley bottom wetlands, which provided natural flood storage. From the early 1900s through the mid-1960s, the river was straightened by a series of drainage district projects. In 1964, the U.S. Army Corps of Engineers formalized these efforts through the Sammamish River Flood Control Project – a nearly 14-mile long project from Lake Sammamish to Lake Washington to provide flood protection for the Sammamish River valley.

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Large Wood Debris in Rivers Public Meetings | June 12 and June 13

King County’s flood risk reduction and habitat restoration projects sometimes require the placement of large wood into rivers and streams. Large wood can slow down a river, create pools and hiding places for young salmon, and bolster levees or revetments that protect people and infrastructure from flood risks. If you would like to learn about…

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