Everett, Wash., considers $113-million water, sewer pipeline project to reduce overflows
Everett, Wash., is weighing a $113-million investment to construct new water and sewer pipelines supporting its long-planned Port Gardner Storage Facility, a major effort to reduce combined sewer overflows (CSOs) and improve water quality.
According to HeraldNet, the Everett City Council is expected to vote on an ordinance that would fund construction of a new combined stormwater and sewer conveyance line, along with replacement of an aging 48-in. water main along West Marine View Drive.
The pipelines will transport excess stormwater flows to the Port Gardner Storage Facility, a more than $200-million project designed to temporarily store overflow during heavy rainfall before sending it to treatment.
City officials say the upgrades are critical to addressing CSOs caused by Everett’s legacy combined sewer system, much of which dates back to the late 19th and early 20th centuries. During major storm events, the system can exceed capacity, discharging untreated flows into the Snohomish River and Port Gardner Bay, HeraldNet reported.
Once complete, the storage facility and associated pipeline infrastructure are expected to reduce overflow volumes by roughly 95%, significantly improving environmental conditions in local waterways.
The pipeline work will span a key waterfront corridor and include complex construction elements such as rail crossings and phased sequencing to minimize traffic disruptions. The broader Port Gardner project is scheduled for completion by the end of 2027 to meet state regulatory requirement
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