EVERETT — Two giant pipelines, each one mile long, are scheduled to be towed over water from Everett to Shoreline on Sept. 7 and 8 as part of the Brightwater sewage plant project.
Boaters are being given notice to stay at least 600 feet away from the pipelines as they are hauled down the shoreline, said Annie Kolb-Nelson, spokeswoman for King County’s Brightwater project.
The plan is for the pipelines to leave from the Riverside Business Park, near Highway 529 on the Snohomish River where they were assembled, she said. They’ll go past the Everett waterfront, outside Jetty Island, then south along Possession Sound and Puget Sound to Point Wells at the King- Snohomish County line.
There, the pipelines — 63 inches in diameter — will be hooked up to pipelines already connected to the shore, all of which will serve as the outfall into Puget Sound for treated sewage from the $1.8 billion plant being built near Maltby.
The plant is now scheduled to be finished in 2011. A tunnel is being dug to reach the 13 miles from the plant to Point Wells.
The first pipeline is scheduled to leave about 6 p.m. on Sept. 7, a Sunday evening, Kolb-Nelson said. It’s expected to get past the 10th Street Marina in Everett by 7 p.m., she said.
The Port of Everett will send out a “notice to mariners,” which it does anytime there’s a potential obstacle to marine navigation in the area, port spokeswoman Lisa Mandt said. The port will post notices at the gates to the marina and send out e-mails to its 2,300 tenants, she said.
Speedboats from Sea Tow in Port Orchard will provide an escort to the tug and barges carrying the pipeline, Kolb-Nelson said. The caravan will go down the coastline overnight and is scheduled to arrive at Point Wells by 6 a.m., she said.
That pipeline will be connected and sunk, and the second pipeline is scheduled to be brought during the same hours Monday night, Sept. 8, into Tuesday morning, Sept. 9, Kolb-Nelson said.
The work is dependent on weather and tidal conditions, and the scheduled dates and times could change, she said.
Reporter Bill Sheets: 425-339-3439 or sheets@heraldnet.com.
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