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A half-mile stretch of the Cedar River in Maple Valley will remain closed

for at least a week after a landslide clogged the river with mud and 100-foot-tall trees, according to the King County Sheriff’s Office.

The emergency closure was ordered by the Sheriff’s Office shortly after the Saturday morning landslide temporarily blocked the river near Southeast 214th Street off Highway 169, flooding seven properties, officials said.

There were no injuries and no evacuations.

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According to sheriff’s spokeswoman Sgt. DB Gates, the primary concern for local and state officials is how to remove the fallen trees from the river.

“From what I understand, people are not that concerned about the slide itself. County officials are saying that the hillside will continue to slough off, but no big movement is expected,” Gates said Monday.

“What they are trying to decide is how to remove the trees that fell into the river, but with all the entities involved that’s going to take some time,” Gates said.

All activities, including fishing, boating, floating and swimming, are barred from the stretch of the Cedar River from Highway 169 at Highway 18 to Maxwell Road Southeast at Highway 169.

Among the agencies that could be involved in the decision about how to manage the removal of the trees are King County Parks and Recreation and the state departments of Natural Resources, Fish and Wildlife, and Ecology.

A 1993 King County report on the river’s condition indicates the Muckleshoot Indian Tribe also has an interest and stake in the river.

Christine Clarridge can be reached at or 206-464-8983

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