Project phases - Northgate Link Extension

Lifecycle of typical transit project.

Northgate Link Extension is part of the voter-approved Sound Move transit package. For more information about the planning that lead up to Sound Move, visit History: what voters approved.

Sound Transit completed the Final Supplemental Environmental Impact Statement (FSEIS) for the Northgate Link project in 2006. In March 2012, Sound Transit published an PDF iconaddendum to the FSEIS.

For further information about these documents, please contact Lauren Swift, Environmental Planner, 401 S. Jackson St., Seattle WA 98104-2826, or 206-398-5000 TTY: 206.398.5410.

While construction of Northgate Link is underway, the designs of the future light rail stations are still being developed.

The 90 percent design for Northgate Station was presented publicly in March 2014. Sound Transit expects to reach the 90 percent design milestones for the Roosevelt and U District Stations in 2015.  

Construction began in late 2012 with demolition of the Roosevelt Station site, and Northgate Link Extension is scheduled to open for operation in 2021.

Construction hours
Construction crews working on the Northgate Link extension project typically work Monday through Saturday, however some Sunday work may be necessary to maintain our schedule. Nighttime or early morning work is occasionally necessary. When needed, crews will obtain noise variance from the City of Seattle.

Monday through Friday - 7 a.m. to 10 p.m.
Saturday, Sunday and holiday - 9 a.m. to 10 p.m.

High impact work
Monday through Friday - 8 a.m. to 5 p.m.
Saturday, Sunday and holiday - 9 a.m. to 5 p.m.

For issues that need immediate attention after normal business hours
24-hour construction hotline - 1-888-298-2395

Systems installation and testing will take place between late 2018 and early 2021. Service is scheduled to open in 2021.