Tag Archives: Lake Cushman

Looking backward, then forward on actions in Skokomish watershed

Through the years, I’ve written a lot about the Skokomish River, which begins in the Olympic Mountains and flows into the south end of Hood Canal. The wide, productive estuary might be described as the elbow of this long, narrow waterway that bends up toward Belfair.

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I’ve heard it said that Puget Sound cannot be restored to health without a healthy Hood Canal, and Hood Canal cannot be restored to health without a healthy Skokomish River. Whether that is true remains to be seen, but I have no doubt that the Skokomish River watershed is coming out of a dark period of abuse with hope of becoming one of the most productive streams in the region.

Much of the credit for the transformation goes to a group of men and women from a variety of agencies, occupations and ways of life who came together with an understanding of the historic value of the Skokomish River and a vision for what the river could become again. This was the Skokomish Watershed Action Team, or SWAT, which celebrated its 10th anniversary last year.

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To be sure, it was basically loads of money that began to transform the abused Skokomish River watershed to a much more productive system. But the people in charge of the federal, state, local and private dollars were able to see the Skokomish as a worthy cause, thanks to the groundwork laid by the SWAT. Disappointments have been few, as one project after another brings this long lost river back to life.

Yes, I have written a lot about the Skokomish River, its history and its future. That’s why I was glad to see the 10-year update to the Skokomish Watershed Action Plan (download, PDF 113 mb). The document contains an extensive account of the projects completed and the milestones passed through the years. Whether you are intimately involved in the watershed or just want to know what the heck I’m talking about, take a look at the report released this week.

Logjam soon after installation in 2010. Photo: U.S. Forest Service
Logjam soon after installation in 2010.
Photo: U.S. Forest Service

Since 2005, nearly 50 restoration projects were completed — from removal of old logging roads high in the mountains to the re-establishment of tidal channels in the lower estuary. Salmon are being reintroduced to the North Fork of the Skokomish River, including the dammed-up Lake Cushman, thanks to a legal settlement between Tacoma and the Skokomish Tribe.

After establishment, a deep pool forms behind the logjam. Photo: U.S. Forest Service
Later, a deep pool forms behind the jam.
Photo: U.S. Forest Service

About 12 miles upstream in the South Fork of the Skokomish, a series of 30 logjams were installed and almost immediately began to restore the channel to a more natural habitat for fish and other aquatic creatures. This area was part of a four-mile stretch that was heavily logged in the 1950s for a reservoir that never happened.

Once the logjams were in place, the area began to store massive loads of sediment, which always created problems as they washed downstream into the lower river. The river’s characteristic problem of spreading out and slowing down was reversed, as width-to-depth ratios decreased and the average depth in the middle of the river increased by two feet. The number of pools deeper than five feet doubled from three to six, and the piles of wood grew larger by capturing logs floating downstream.

The new report also lays out plans for the watershed in the coming years, including projects identified in a major study by the Army Corps of Engineers. A Corps proposal to fund $20 million in restoration projects is now before Congress, as I described in Water Ways in April and June. Other projects have been proposed for separate funding, as outlined in the new report.