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The City of Seattle will construct a new water pipe between Fremont and Queen Anne.
The Fremont to Queen Anne Water Main Replacement Project will construct a new 24-inch drinking water feeder main in a utility tunnel (or “utilidor”) under the Ship Canal between Fremont and Queen Anne. Feeder mains provide drinking water service to several neighborhoods. The new feeder will replace an existing main that had served Seattle for almost 100 years and was taken out of service in 2011 because it had reached the end of its service life.
In July 2011, the existing water main was taken out of service due to a leak. During this service outage, SPU agreed not to replace the utility until the expected 2017 completion of King County’s Fremont Siphon project to minimize construction impacts to the community. The purpose of the Fremont Siphon project was to install a new King County siphon to transport combined sewage (wastewater & stormwater) under the Ship Canal and retire two combined sewage pipelines co-located within the Seattle utilidor that provided that purpose.
Construction planned to start in October 2018. The majority of Phase 1 work will take place south of the waterway in Queen Anne.
Work will occur in Fremont near Fremont Canal Park and in West Ewing Mini Park in Queen Anne. The latter will be closed for the duration of construction. SPU will continue providing updates to nearby neighbors in advance of and during construction. In general, customers can anticipate the following construction impacts:
In addition to conveying drinking water across the Ship Canal, the new feeder main will: