June 1, 2009

Old wood pipeline will get $44M replacement

Photo courtesy Ned Ahrens [enlarge]

Two 36-inch wood-stave pipes were laid along the bottom of Salmon Bay in 1935. They transport up to 60 million gallons of waste per day.

King County is getting ready to replace the Ballard Siphon, two wooden sewer pipelines that were laid across the bottom of Salmon Bay in 1935. The pipelines move sewage from all of North Seattle to Magnolia, on its way to the West Point Treatment Plant.

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